/*  Prototype JavaScript framework, version 1.6.0.1
 *  (c) 2005-2007 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.0.1',

  Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

  BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;

    return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }

    return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : object.toString();
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

  toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  },

  toQueryString: function(object) {
    return $H(object).toQueryString();
  },

  toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

  keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

  values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

  clone: function(object) {
    return Object.extend({ }, object);
  },

  isElement: function(object) {
    return object && object.nodeType == 1;
  },

  isArray: function(object) {
    return object && object.constructor === Array;
  },

  isHash: function(object) {
    return object instanceof Hash;
  },

  isFunction: function(object) {
    return typeof object == "function";
  },

  isString: function(object) {
    return typeof object == "string";
  },

  isNumber: function(object) {
    return typeof object == "number";
  },

  isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },

  bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

  bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

  curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

  delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

  wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

  methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Function.prototype.defer = Function.prototype.delay.curry(0.01);

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

  sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

  scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

  truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

  strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

  stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

  stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

  extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

  evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

  escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

  unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

  toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

  toArray: function() {
    return this.split('');
  },

  succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

  times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

  camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  },

  capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

  underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

  dasherize: function() {
    return this.gsub(/_/,'-');
  },

  inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

  toJSON: function() {
    return this.inspect(true);
  },

  unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

  isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

  evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

  include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

  startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

  endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

  empty: function() {
    return this == '';
  },

  blank: function() {
    return /^\s*$/.test(this);
  },

  interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  },
  unescapeHTML: function() {
    return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

with (String.prototype.escapeHTML) div.appendChild(text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    }.bind(this));
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = {
  each: function(iterator, context) {
    var index = 0;
    iterator = iterator.bind(context);
    try {
      this._each(function(value) {
        iterator(value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  },

  eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

  all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },

  any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },

  collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },

  detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

  findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

  grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(filter);

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },

  include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

  inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

  inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

  invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

  max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

  min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },

  partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

  pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

  reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

  sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

  toArray: function() {
    return this.map();
  },

  zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

  size: function() {
    return this.toArray().length;
  },

  inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  function $A(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  }
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

  clear: function() {
    this.length = 0;
    return this;
  },

  first: function() {
    return this[0];
  },

  last: function() {
    return this[this.length - 1];
  },

  compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

  flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

  without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

  reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

  reduce: function() {
    return this.length > 1 ? this : this[0];
  },

  uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

  intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

  clone: function() {
    return [].concat(this);
  },

  size: function() {
    return this.length;
  },

  inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

  toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

  succ: function() {
    return this + 1;
  },

  times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },

  toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

  toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

    _each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },

    set: function(key, value) {
      return this._object[key] = value;
    },

    get: function(key) {
      return this._object[key];
    },

    unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

    toObject: function() {
      return Object.clone(this._object);
    },

    keys: function() {
      return this.pluck('key');
    },

    values: function() {
      return this.pluck('value');
    },

    index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

    merge: function(object) {
      return this.clone().update(object);
    },

    update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

    toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

        if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },

    inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

    toJSON: function() {
      return Object.toJSON(this.toObject());
    },

    clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

  _each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

  include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name);
    } catch (e) { return null }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,
  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON);
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

(function() {
  var element = this.Element;
  this.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (Prototype.Browser.IE && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(this.Element, element || { });
}).call(window);

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

  hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

  show: function(element) {
    $(element).style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, t, range;

    for (position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      t = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        t.insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      range = element.ownerDocument.createRange();
      t.initializeRange(element, range);
      t.insert(element, range.createContextualFragment(content.stripScripts()));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

  descendants: function(element) {
    return $(element).getElementsBySelector("*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

  nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return expression ? Selector.findElement(ancestors, expression, index) :
      ancestors[index || 0];
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    var descendants = element.descendants();
    return expression ? Selector.findElement(descendants, expression, index) :
      descendants[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return expression ? Selector.findElement(previousSiblings, expression, index) :
      previousSiblings[index || 0];
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return expression ? Selector.findElement(nextSiblings, expression, index) :
      nextSiblings[index || 0];
  },

  select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

  adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return $(element).getDimensions().height;
  },

  getWidth: function(element) {
    return $(element).getDimensions().width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    var originalAncestor = ancestor;

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
    }

    while (element = element.parentNode)
      if (element == originalAncestor) return true;
    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p == 'relative' || p == 'absolute') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;

    var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    source = $(source);
    var p = source.viewportOffset();

    element = $(element);
    var delta = [0, 0];
    var parent = null;
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};


if (!document.createRange || Prototype.Browser.Opera) {
  Element.Methods.insert = function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = { bottom: insertions };

    var t = Element._insertionTranslations, content, position, pos, tagName;

    for (position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      pos      = t[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        pos.insert(element, content);
        continue;
      }

      content = Object.toHTML(content);
      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      if (t.tags[tagName]) {
        var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
        if (position == 'top' || position == 'after') fragments.reverse();
        fragments.each(pos.insert.curry(element));
      }
      else element.insertAdjacentHTML(pos.adjacency, content.stripScripts());

      content.evalScripts.bind(content).defer();
    }

    return element;
  };
}

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          if (!Element.visible(element)) return null;

          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position != 'static') return proceed(element);
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

  Element._attributeTranslations.write = {
    names: Object.clone(Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  Element.Methods.update = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

    content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

    if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

if (document.createElement('div').outerHTML) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  div.innerHTML = t[0] + html + t[1];
  t[2].times(function() { div = div.firstChild });
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: {
    adjacency: 'beforeBegin',
    insert: function(element, node) {
      element.parentNode.insertBefore(node, element);
    },
    initializeRange: function(element, range) {
      range.setStartBefore(element);
    }
  },
  top: {
    adjacency: 'afterBegin',
    insert: function(element, node) {
      element.insertBefore(node, element.firstChild);
    },
    initializeRange: function(element, range) {
      range.selectNodeContents(element);
      range.collapse(true);
    }
  },
  bottom: {
    adjacency: 'beforeEnd',
    insert: function(element, node) {
      element.appendChild(node);
    }
  },
  after: {
    adjacency: 'afterEnd',
    insert: function(element, node) {
      element.parentNode.insertBefore(node, element.nextSibling);
    },
    initializeRange: function(element, range) {
      range.setStartAfter(element);
    }
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  this.bottom.initializeRange = this.top.initializeRange;
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return node && node.specified;
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;

    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }

  if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

document.viewport = {
  getDimensions: function() {
    var dimensions = { };
    var B = Prototype.Browser;
    $w('width height').each(function(d) {
      var D = d.capitalize();
      dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
        (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
    });
    return dimensions;
  },

  getWidth: function() {
    return this.getDimensions().width;
  },

  getHeight: function() {
    return this.getDimensions().height;
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },

  shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;

    var e = this.expression;

    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;

    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
      return false;

    return true;
  },

  compileMatcher: function() {
    if (this.shouldUseXPath())
      return this.compileXPathMatcher();

    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
    	      new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
    return this.matcher(root);
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
      'checked':     "[@checked]",
      'disabled':    "[@disabled]",
      'enabled':     "[not(@disabled)]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i in p) {
            if (m = e.match(p[i])) {
              v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);   c = false;',
    className:    'n = h.className(n, r, "#{1}", c); c = false;',
    id:           'n = h.id(n, r, "#{1}", c);        c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: {
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,

    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:       /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s)|(?=:))/,
    attrPresence: /^\[([\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },

  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return Selector.operators[matches[2]](nodeValue, matches[3]);
    }
  },

  handlers: {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    mark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._counted = true;
      return nodes;
    },

    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._counted = undefined;
      return nodes;
    },

    index: function(parentNode, reverse, ofType) {
      parentNode._counted = true;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
      }
    },

    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._counted) {
          n._counted = true;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
	      if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    tagName: function(nodes, root, tagName, combinator) {
      tagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() == tagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._counted) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._counted) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled) results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv.startsWith(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
  },

  matchElements: function(elements, expression) {
    var matches = new Selector(expression).findElements(), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._counted) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    var exprs = expressions.join(',');
    expressions = [];
    exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Selector.handlers.concat = function(a, b) {
    for (var i = 0, node; node = b[i]; i++)
      if (node.tagName !== "!") a.push(node);
    return a;
  };
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, index) {
    if (Object.isUndefined(index))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, value, single = !Object.isArray(index);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        value = this.optionValue(opt);
        if (single) {
          if (value == index) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = index.include(value);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,
  KEY_INSERT:   45,

  cache: { },

  relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});

Event.Methods = (function() {
  var isButton;

  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };

  } else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };

  } else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },

    element: function(event) {
      var node = Event.extend(event).target;
      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
    },

    findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },

    pointer: function(event) {
      return {
        x: event.pageX || (event.clientX +
          (document.documentElement.scrollLeft || document.body.scrollLeft)),
        y: event.pageY || (event.clientY +
          (document.documentElement.scrollTop || document.body.scrollTop))
      };
    },

    pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },

    stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();

Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });

    return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };

  } else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();

Object.extend(Event, (function() {
  var cache = Event.cache;

  function getEventID(element) {
    if (element._eventID) return element._eventID;
    arguments.callee.id = arguments.callee.id || 1;
    return element._eventID = ++arguments.callee.id;
  }

  function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }

  function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }

  function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }

  function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;

    var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;

      Event.extend(event);
      handler.call(element, event)
    };

    wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }

  function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }

  function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }

  function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }

  if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

  return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);

      var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;

      if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }

      return element;
    },

    stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);

      if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;

      } else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }

      var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;

      if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }

      destroyWrapper(id, eventName, handler);

      return element;
    },

    fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;

      if (document.createEvent) {
        var event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        var event = document.createEventObject();
        event.eventType = "ondataavailable";
      }

      event.eventName = eventName;
      event.memo = memo || { };

      if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }

      return Event.extend(event);
    }
  };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});

Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize()
});

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */

  var timer, fired = false;

  function fireContentLoadedEvent() {
    if (fired) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    fired = true;
  }

  if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);

      Event.observe(window, "load", fireContentLoadedEvent);

    } else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }

  } else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();

var Scriptaculous = {
  Version: '1.5_rc3',
  require: function(libraryName) {
    document.write('<script type="text/javascript" src="'+libraryName+'"></script>');
  },
  load: function() {
    if((typeof Prototype=='undefined') ||
      parseFloat(Prototype.Version.split(".")[0] + "." +
                 Prototype.Version.split(".")[1]) < 1.4)
      throw("script.aculo.us requires the Prototype JavaScript framework >= 1.4.0");
    var scriptTags = document.getElementsByTagName("script");
    for(var i=0;i<scriptTags.length;i++) {
      if(scriptTags[i].src && scriptTags[i].src.match(/scriptaculous\.js(\?.*)?$/)) {
        var path = scriptTags[i].src.replace(/scriptaculous\.js(\?.*)?$/,'');
        this.require(path + 'effects.js');
        this.require(path + 'dragdrop.js');
        this.require(path + 'controls.js');
        this.require(path + 'slider.js');
        break;
      }
    }
  }
}

Scriptaculous.load();


Object.debug = function(obj) {
  var info = [];

  if(typeof obj in ["string","number"]) {
    return obj;
  } else {
    for(property in obj)
      if(typeof obj[property]!="function")
        info.push(property + ' => ' +
          (typeof obj[property] == "string" ?
            '"' + obj[property] + '"' :
            obj[property]));
  }

  return ("'" + obj + "' #" + typeof obj +
    ": {" + info.join(", ") + "}");
}


String.prototype.toArray = function() {
  var results = [];
  for (var i = 0; i < this.length; i++)
    results.push(this.charAt(i));
  return results;
}

/*--------------------------------------------------------------------------*/

var Builder = {
  NODEMAP: {
    AREA: 'map',
    CAPTION: 'table',
    COL: 'table',
    COLGROUP: 'table',
    LEGEND: 'fieldset',
    OPTGROUP: 'select',
    OPTION: 'select',
    PARAM: 'object',
    TBODY: 'table',
    TD: 'table',
    TFOOT: 'table',
    TH: 'table',
    THEAD: 'table',
    TR: 'table'
  },
  node: function(elementName) {
    elementName = elementName.toUpperCase();

    var parentTag = this.NODEMAP[elementName] || 'div';
    var parentElement = document.createElement(parentTag);
    parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
    var element = parentElement.firstChild || null;

    if(element && (element.tagName != elementName))
      element = element.getElementsByTagName(elementName)[0];

    if(!element) element = document.createElement(elementName);

    if(!element) return;

    if(arguments[1])
      if(this._isStringOrNumber(arguments[1]) ||
        (arguments[1] instanceof Array)) {
          this._children(element, arguments[1]);
        } else {
          var attrs = this._attributes(arguments[1]);
          if(attrs.length) {
            parentElement.innerHTML = "<" +elementName + " " +
              attrs + "></" + elementName + ">";
            element = parentElement.firstChild || null;
            if(!element) {
              element = document.createElement(elementName);
              for(attr in arguments[1])
                element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
            }
            if(element.tagName != elementName)
              element = parentElement.getElementsByTagName(elementName)[0];
            }
        }

    if(arguments[2])
      this._children(element, arguments[2]);

     return element;
  },
  _text: function(text) {
     return document.createTextNode(text);
  },
  _attributes: function(attributes) {
    var attrs = [];
    for(attribute in attributes)
      attrs.push((attribute=='className' ? 'class' : attribute) +
          '="' + attributes[attribute].toString().escapeHTML() + '"');
    return attrs.join(" ");
  },
  _children: function(element, children) {
    if(typeof children=='object') { // array can hold nodes and text
      children.flatten().each( function(e) {
        if(typeof e=='object')
          element.appendChild(e)
        else
          if(Builder._isStringOrNumber(e))
            element.appendChild(Builder._text(e));
      });
    } else
      if(Builder._isStringOrNumber(children))
         element.appendChild(Builder._text(children));
  },
  _isStringOrNumber: function(param) {
    return(typeof param=='string' || typeof param=='number');
  }
}

/* ------------- element ext -------------- */


String.prototype.camelize = function() {
  var oStringList = this.split('-');
  if(oStringList.length == 1)
    return oStringList[0];
  var ret = this.indexOf("-") == 0 ?
    oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1) : oStringList[0];
  for(var i = 1, len = oStringList.length; i < len; i++){
    var s = oStringList[i];
    ret += s.charAt(0).toUpperCase() + s.substring(1)
  }
  return ret;
}

Element.getStyle = function(element, style) {
  element = $(element);
  var value = element.style[style.camelize()];
  if(!value)
    if(document.defaultView && document.defaultView.getComputedStyle) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = (css!=null) ? css.getPropertyValue(style) : null;
    } else if(element.currentStyle) {
      value = element.currentStyle[style.camelize()];
    }

  if (window.opera && (style == "left" || style == "top" || style == "right" || style == "bottom"))
    if (Element.getStyle(element, "position") == "static") value = "auto";

  if(value=='auto') value = null;
  return value;
}

String.prototype.parseColor = function() {
  color = "#";
  if(this.slice(0,4) == "rgb(") {
    var cols = this.slice(4,this.length-1).split(',');
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
  } else {
    if(this.slice(0,1) == '#') {
      if(this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
      if(this.length==7) color = this.toLowerCase();
    }
  }
  return(color.length==7 ? color : (arguments[0] || this));
}

Element.makePositioned = function(element) {
  element = $(element);
  var pos = Element.getStyle(element, 'position');
  if(pos =='static' || !pos) {
    element._madePositioned = true;
    element.style.position = "relative";
    if (window.opera){
      element.style.top = 0;
      element.style.left = 0;
    }
  }
}

Element.undoPositioned = function(element) {
  element = $(element);
  if(typeof element._madePositioned != "undefined"){
    element._madePositioned = undefined;
    element.style.position = "";
    element.style.top = "";
    element.style.left = "";
    element.style.bottom = "";
    element.style.right = "";
  }
}

Element.makeClipping = function(element) {
  element = $(element);
  if (typeof element._overflow != 'undefined') return;
  element._overflow = element.style.overflow;
  if((Element.getStyle(element, 'overflow') || 'visible') != 'hidden') element.style.overflow = 'hidden';
}

Element.undoClipping = function(element) {
  element = $(element);
  if (typeof element._overflow == 'undefined') return;
  element.style.overflow = element._overflow;
  element._overflow = undefined;
}

Element.collectTextNodesIgnoreClass = function(element, ignoreclass) {
  var children = $(element).childNodes;
  var text     = "";
  var classtest = new RegExp("^([^ ]+ )*" + ignoreclass+ "( [^ ]+)*$","i");

  for (var i = 0; i < children.length; i++) {
    if(children[i].nodeType==3) {
      text+=children[i].nodeValue;
    } else {
      if((!children[i].className.match(classtest)) && children[i].hasChildNodes())
        text += Element.collectTextNodesIgnoreClass(children[i], ignoreclass);
    }
  }

  return text;
}

Element.setContentZoom = function(element, percent) {
  element = $(element);
  element.style.fontSize = (percent/100) + "em";
  if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
}

Element.getOpacity = function(element){
  var opacity;
  if (opacity = Element.getStyle(element, "opacity"))
    return parseFloat(opacity);
  if (opacity = (Element.getStyle(element, "filter") || '').match(/alpha\(opacity=(.*)\)/))
    if(opacity[1]) return parseFloat(opacity[1]) / 100;
  return 1.0;
}

Element.setOpacity = function(element, value){
  element= $(element);
  var els = element.style;
  if (value == 1){
    els.opacity = '0.999999';
    if(/MSIE/.test(navigator.userAgent))
      els.filter = Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'');
  } else {
    if(value < 0.00001) value = 0;
    els.opacity = value;
    if(/MSIE/.test(navigator.userAgent))
      els.filter = Element.getStyle(element,'filter').replace(/alpha\([^\)]*\)/gi,'') +
        "alpha(opacity="+value*100+")";
  }
}

Element.getInlineOpacity = function(element){
  element= $(element);
  var op;
  op = element.style.opacity;
  if (typeof op != "undefined" && op != "") return op;
  return "";
}

Element.setInlineOpacity = function(element, value){
  element= $(element);
  var els = element.style;
  els.opacity = value;
}

Element.getDimensions = function(element){
  element = $(element);
  if (Element.getStyle(element,'display') == "none"){
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    els.visibility = "hidden";
    els.position = "absolute";
    els.display = "";
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = "none";
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  }

  return {width: element.offsetWidth, height: element.offsetHeight};
}

/*--------------------------------------------------------------------------*/

Position.positionedOffset = function(element) {
  var valueT = 0, valueL = 0;
  do {
    valueT += element.offsetTop  || 0;
    valueL += element.offsetLeft || 0;
    element = element.offsetParent;
    if (element) {
      p = Element.getStyle(element,'position');
      if(p == 'relative' || p == 'absolute') break;
    }
  } while (element);
  return [valueL, valueT];
}


if(/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
  Position.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      if (element.offsetParent==document.body)
        if (Element.getStyle(element,'position')=='absolute') break;

      element = element.offsetParent;
    } while (element);
    return [valueL, valueT];
  }
}

Position.page = function(forElement) {
  var valueT = 0, valueL = 0;

  var element = forElement;
  do {
    valueT += element.offsetTop  || 0;
    valueL += element.offsetLeft || 0;

    if (element.offsetParent==document.body)
      if (Element.getStyle(element,'position')=='absolute') break;

  } while (element = element.offsetParent);

  element = forElement;
  do {
    valueT -= element.scrollTop  || 0;
    valueL -= element.scrollLeft || 0;
  } while (element = element.parentNode);

  return [valueL, valueT];
}

Position.offsetParent = function(element) {
  if(element.offsetParent) return element.offsetParent;
  if(element == document.body) return element;

  while ((element = element.parentNode) && element != document.body)
    if (Element.getStyle(element,'position')!='static')
      return element;

  return document.body;
}

Position.clone = function(source, target) {
  var options = Object.extend({
    setLeft:    true,
    setTop:     true,
    setWidth:   true,
    setHeight:  true,
    offsetTop:  0,
    offsetLeft: 0
  }, arguments[2] || {})

  source = $(source);
  var p = Position.page(source);

  target = $(target);
  var delta = [0, 0];
  var parent = null;
  if (Element.getStyle(target,'position') == 'absolute') {
    parent = Position.offsetParent(target);
    delta = Position.page(parent);
  }

  if (parent==document.body) {
    delta[0] -= document.body.offsetLeft;
    delta[1] -= document.body.offsetTop;
  }

  if(options.setLeft)   target.style.left  = (p[0] - delta[0] + options.offsetLeft) + "px";
  if(options.setTop)    target.style.top   = (p[1] - delta[1] + options.offsetTop) + "px";
  if(options.setWidth)  target.style.width = source.offsetWidth + "px";
  if(options.setHeight) target.style.height = source.offsetHeight + "px";
}

Position.absolutize = function(element) {
  element = $(element);
  if(element.style.position=='absolute') return;
  Position.prepare();

  var offsets = Position.positionedOffset(element);
  var top     = offsets[1];
  var left    = offsets[0];
  var width   = element.clientWidth;
  var height  = element.clientHeight;

  element._originalLeft   = left - parseFloat(element.style.left  || 0);
  element._originalTop    = top  - parseFloat(element.style.top || 0);
  element._originalWidth  = element.style.width;
  element._originalHeight = element.style.height;

  element.style.position = 'absolute';
  element.style.top    = top + 'px';;
  element.style.left   = left + 'px';;
  element.style.width  = width + 'px';;
  element.style.height = height + 'px';;
}

Position.relativize = function(element) {
  element = $(element);
  if(element.style.position=='relative') return;
  Position.prepare();

  element.style.position = 'relative';
  var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
  var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

  element.style.top    = top + 'px';
  element.style.left   = left + 'px';
  element.style.height = element._originalHeight;
  element.style.width  = element._originalWidth;
}

/*--------------------------------------------------------------------------*/

Element.Class = {
    toggle: function(element, className) {
      if(Element.Class.has(element, className)) {
        Element.Class.remove(element, className);
        if(arguments.length == 3) Element.Class.add(element, arguments[2]);
      } else {
        Element.Class.add(element, className);
        if(arguments.length == 3) Element.Class.remove(element, arguments[2]);
      }
    },

    get: function(element) {
      return $(element).className.split(' ');
    },

    remove: function(element) {
      element = $(element);
      var removeClasses = arguments;
      $R(1,arguments.length-1).each( function(index) {
        element.className =
          element.className.split(' ').reject(
            function(klass) { return (klass == removeClasses[index]) } ).join(' ');
      });
    },

    add: function(element) {
      element = $(element);
      for(var i = 1; i < arguments.length; i++) {
        Element.Class.remove(element, arguments[i]);
        element.className += (element.className.length > 0 ? ' ' : '') + arguments[i];
      }
    },

    has: function(element) {
      element = $(element);
      if(!element || !element.className) return false;
      var regEx;
      for(var i = 1; i < arguments.length; i++) {
        if((typeof arguments[i] == 'object') &&
          (arguments[i].constructor == Array)) {
          for(var j = 0; j < arguments[i].length; j++) {
            regEx = new RegExp("(^|\\s)" + arguments[i][j] + "(\\s|$)");
            if(!regEx.test(element.className)) return false;
          }
        } else {
          regEx = new RegExp("(^|\\s)" + arguments[i] + "(\\s|$)");
          if(!regEx.test(element.className)) return false;
        }
      }
      return true;
    },

    has_any: function(element) {
      element = $(element);
      if(!element || !element.className) return false;
      var regEx;
      for(var i = 1; i < arguments.length; i++) {
        if((typeof arguments[i] == 'object') &&
          (arguments[i].constructor == Array)) {
          for(var j = 0; j < arguments[i].length; j++) {
            regEx = new RegExp("(^|\\s)" + arguments[i][j] + "(\\s|$)");
            if(regEx.test(element.className)) return true;
          }
        } else {
          regEx = new RegExp("(^|\\s)" + arguments[i] + "(\\s|$)");
          if(regEx.test(element.className)) return true;
        }
      }
      return false;
    },

    childrenWith: function(element, className) {
      var children = $(element).getElementsByTagName('*');
      var elements = new Array();

      for (var i = 0; i < children.length; i++)
        if (Element.Class.has(children[i], className))
          elements.push(children[i]);

      return elements;
    }
}

String.prototype.parseColor = function() {
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {
    var cols = this.slice(4,this.length-1).split(',');
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
  } else {
    if (this.slice(0,1) == '#') {
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
      if (this.length==7) color = this.toLowerCase();
    }
  }
  return (color.length==7 ? color : (arguments[0] || this));
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);
  element.setStyle({fontSize: (percent/100) + 'em'});
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + 0.5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
    },
    pulse: function(pos, pulses) {
      pulses = pulses || 5;
      return (
        ((pos % (1/pulses)) * pulses).round() == 0 ?
              ((pos * pulses * 2) - (pos * pulses * 2).floor()) :
          1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
        );
    },
    spring: function(pos) {
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character),
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') ||
        Object.isFunction(element)) &&
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;

    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect) {
    element = $(element);
    effect = (effect || 'appear').toLowerCase();
    var options = Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, arguments[2] || { });
    Effect[element.visible() ?
      Effect.PAIRS[effect][1] : Effect.PAIRS[effect][0]](element, options);
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();

    var position = Object.isString(effect.options.queue) ?
      effect.options.queue : effect.options.queue.position;

    switch(position) {
      case 'front':
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }

    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);

    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++)
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;

    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    function codeForEvent(options,eventName){
      return (
        (options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
        (options[eventName] ? 'this.options.'+eventName+'(this);' : '')
      );
    }
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;

    eval('this.render = function(pos){ '+
      'if (this.state=="idle"){this.state="running";'+
      codeForEvent(this.options,'beforeSetup')+
      (this.setup ? 'this.setup();':'')+
      codeForEvent(this.options,'afterSetup')+
      '};if (this.state=="running"){'+
      'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
      'this.position=pos;'+
      codeForEvent(this.options,'beforeUpdate')+
      (this.update ? 'this.update(pos);':'')+
      codeForEvent(this.options,'afterUpdate')+
      '}}');

    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish();
        this.event('afterFinish');
        return;
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(),
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) :
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element,
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');

    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));

    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;

    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));

    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
    scrollOffsets = document.viewport.getScrollOffsets(),
    elementOffsets = $(element).cumulativeOffset(),
    max = (window.height || document.body.scrollHeight) - document.viewport.getHeight();

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1] > max ? max : elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()) }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) {
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity});
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show();
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = {
    opacity: element.getInlineOpacity(),
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200,
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }),
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ],
     Object.extend({ duration: 1.0,
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element)
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false,
      scaleX: false,
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      }
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, {
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) {
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      })
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }),
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned();
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        }
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}) }}) }}) }}) }}) }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false,
    scaleX: false,
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, {
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping();
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping();
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var initialMoveX, initialMoveY;
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0;
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }

  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01,
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width },
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show();
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
             }
           }, options)
      )
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }

  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping();
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { };
  var oldOpacity = element.getInlineOpacity();
  var transition = options.transition || Effect.Transitions.sinoidal;
  var reverser   = function(pos){ return transition(1-Effect.Transitions.pulse(pos, options.pulses)) };
  reverser.bind(transition);
  return new Effect.Opacity(element,
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, {
      scaleContent: false,
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });

    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        }
      }
    }
    this.start(options);
  },

  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 )
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return {
        style: property.camelize(),
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      )
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] =
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) +
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');

Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }

  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]);
  });

  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(hash, property) {
      hash.set(property, css[property]);
      return hash;
    });
    if (!styles.opacity) styles.set('opacity', element.getOpacity());
    return styles;
  };
};

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element)
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) {
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    }
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);


if(typeof Effect == 'undefined')
  throw("controls.js requires including script.aculo.us' effects.js library");

var Autocompleter = { }
Autocompleter.Base = Class.create({
  baseInitialize: function(element, update, options) {
    element          = $(element)
    this.element     = element;
    this.update      = $(update);
    this.hasFocus    = false;
    this.changed     = false;
    this.active      = false;
    this.index       = 0;
    this.entryCount  = 0;
    this.oldElementValue = this.element.value;

    if(this.setOptions)
      this.setOptions(options);
    else
      this.options = options || { };

    this.options.paramName    = this.options.paramName || this.element.name;
    this.options.tokens       = this.options.tokens || [];
    this.options.frequency    = this.options.frequency || 0.4;
    this.options.minChars     = this.options.minChars || 1;
    this.options.onShow       = this.options.onShow ||
      function(element, update){
        if(!update.style.position || update.style.position=='absolute') {
          update.style.position = 'absolute';
          Position.clone(element, update, {
            setHeight: false,
            offsetTop: element.offsetHeight
          });
        }
        Effect.Appear(update,{duration:0.15});
      };
    this.options.onHide = this.options.onHide ||
      function(element, update){ new Effect.Fade(update,{duration:0.15}) };

    if(typeof(this.options.tokens) == 'string')
      this.options.tokens = new Array(this.options.tokens);
    if (!this.options.tokens.include('\n'))
      this.options.tokens.push('\n');

    this.observer = null;

    this.element.setAttribute('autocomplete','off');

    Element.hide(this.update);

    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
  },

  show: function() {
    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
    if(!this.iefix &&
      (Prototype.Browser.IE) &&
      (Element.getStyle(this.update, 'position')=='absolute')) {
      new Insertion.After(this.update,
       '<iframe id="' + this.update.id + '_iefix" '+
       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
      this.iefix = $(this.update.id+'_iefix');
    }
    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
  },

  fixIEOverlapping: function() {
    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
    this.iefix.style.zIndex = 1;
    this.update.style.zIndex = 2;
    Element.show(this.iefix);
  },

  hide: function() {
    this.stopIndicator();
    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
    if(this.iefix) Element.hide(this.iefix);
  },

  startIndicator: function() {
    if(this.options.indicator) Element.show(this.options.indicator);
  },

  stopIndicator: function() {
    if(this.options.indicator) Element.hide(this.options.indicator);
  },

  onKeyPress: function(event) {
    if(this.active)
      switch(event.keyCode) {
       case Event.KEY_TAB:
       case Event.KEY_RETURN:
         this.selectEntry();
         Event.stop(event);
       case Event.KEY_ESC:
         this.hide();
         this.active = false;
         Event.stop(event);
         return;
       case Event.KEY_LEFT:
       case Event.KEY_RIGHT:
         return;
       case Event.KEY_UP:
         this.markPrevious();
         this.render();
         Event.stop(event);
         return;
       case Event.KEY_DOWN:
         this.markNext();
         this.render();
         Event.stop(event);
         return;
      }
     else
       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN ||
         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;

    this.changed = true;
    this.hasFocus = true;

    if(this.observer) clearTimeout(this.observer);
      this.observer =
        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
  },

  activate: function() {
    this.changed = false;
    this.hasFocus = true;
    this.getUpdatedChoices();
  },

  onHover: function(event) {
    var element = Event.findElement(event, 'LI');
    if(this.index != element.autocompleteIndex)
    {
        this.index = element.autocompleteIndex;
        this.render();
    }
    Event.stop(event);
  },

  onClick: function(event) {
    var element = Event.findElement(event, 'LI');
    this.index = element.autocompleteIndex;
    this.selectEntry();
    this.hide();
  },

  onBlur: function(event) {
    setTimeout(this.hide.bind(this), 250);
    this.hasFocus = false;
    this.active = false;
  },

  render: function() {
    if(this.entryCount > 0) {
      for (var i = 0; i < this.entryCount; i++)
        this.index==i ?
          Element.addClassName(this.getEntry(i),"selected") :
          Element.removeClassName(this.getEntry(i),"selected");
      if(this.hasFocus) {
        this.show();
        this.active = true;
      }
    } else {
      this.active = false;
      this.hide();
    }
  },

  markPrevious: function() {
    if(this.index > 0) this.index--
      else this.index = this.entryCount-1;
    this.getEntry(this.index).scrollIntoView(true);
  },

  markNext: function() {
    if(this.index < this.entryCount-1) this.index++
      else this.index = 0;
    this.getEntry(this.index).scrollIntoView(false);
  },

  getEntry: function(index) {
    return this.update.firstChild.childNodes[index];
  },

  getCurrentEntry: function() {
    return this.getEntry(this.index);
  },

  selectEntry: function() {
    this.active = false;
    this.updateElement(this.getCurrentEntry());
  },

  updateElement: function(selectedElement) {
    if (this.options.updateElement) {
      this.options.updateElement(selectedElement);
      return;
    }
    var value = '';
    if (this.options.select) {
      var nodes = $(selectedElement).select('.' + this.options.select) || [];
      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
    } else
      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');

    var bounds = this.getTokenBounds();
    if (bounds[0] != -1) {
      var newValue = this.element.value.substr(0, bounds[0]);
      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
      if (whitespace)
        newValue += whitespace[0];
      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
    } else {
      this.element.value = value;
    }
    this.oldElementValue = this.element.value;
    this.element.focus();

    if (this.options.afterUpdateElement)
      this.options.afterUpdateElement(this.element, selectedElement);
  },

  updateChoices: function(choices) {
    if(!this.changed && this.hasFocus) {
      this.update.innerHTML = choices;
      Element.cleanWhitespace(this.update);
      Element.cleanWhitespace(this.update.down());

      if(this.update.firstChild && this.update.down().childNodes) {
        this.entryCount =
          this.update.down().childNodes.length;
        for (var i = 0; i < this.entryCount; i++) {
          var entry = this.getEntry(i);
          entry.autocompleteIndex = i;
          this.addObservers(entry);
        }
      } else {
        this.entryCount = 0;
      }

      this.stopIndicator();
      this.index = 0;

      if(this.entryCount==1 && this.options.autoSelect) {
        this.selectEntry();
        this.hide();
      } else {
        this.render();
      }
    }
  },

  addObservers: function(element) {
    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
  },

  onObserverEvent: function() {
    this.changed = false;
    this.tokenBounds = null;
    if(this.getToken().length>=this.options.minChars) {
      this.getUpdatedChoices();
    } else {
      this.active = false;
      this.hide();
    }
    this.oldElementValue = this.element.value;
  },

  getToken: function() {
    var bounds = this.getTokenBounds();
    return this.element.value.substring(bounds[0], bounds[1]).strip();
  },

  getTokenBounds: function() {
    if (null != this.tokenBounds) return this.tokenBounds;
    var value = this.element.value;
    if (value.strip().empty()) return [-1, 0];
    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
    var offset = (diff == this.oldElementValue.length ? 1 : 0);
    var prevTokenPos = -1, nextTokenPos = value.length;
    var tp;
    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
      if (tp > prevTokenPos) prevTokenPos = tp;
      tp = value.indexOf(this.options.tokens[index], diff + offset);
      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
    }
    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
  }
});

Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
  var boundary = Math.min(newS.length, oldS.length);
  for (var index = 0; index < boundary; ++index)
    if (newS[index] != oldS[index])
      return index;
  return boundary;
};

Ajax.Autocompleter = Class.create(Autocompleter.Base, {
  initialize: function(element, update, url, options) {
    this.baseInitialize(element, update, options);
    this.options.asynchronous  = true;
    this.options.onComplete    = this.onComplete.bind(this);
    this.options.defaultParams = this.options.parameters || null;
    this.url                   = url;
  },

  getUpdatedChoices: function() {
    this.startIndicator();

    var entry = encodeURIComponent(this.options.paramName) + '=' +
      encodeURIComponent(this.getToken());

    this.options.parameters = this.options.callback ?
      this.options.callback(this.element, entry) : entry;

    if(this.options.defaultParams)
      this.options.parameters += '&' + this.options.defaultParams;

    new Ajax.Request(this.url, this.options);
  },

  onComplete: function(request) {
    this.updateChoices(request.responseText);
  }
});


Autocompleter.Local = Class.create(Autocompleter.Base, {
  initialize: function(element, update, array, options) {
    this.baseInitialize(element, update, options);
    this.options.array = array;
  },

  getUpdatedChoices: function() {
    this.updateChoices(this.options.selector(this));
  },

  setOptions: function(options) {
    this.options = Object.extend({
      choices: 10,
      partialSearch: true,
      partialChars: 2,
      ignoreCase: true,
      fullSearch: false,
      selector: function(instance) {
        var ret       = []; // Beginning matches
        var partial   = []; // Inside matches
        var entry     = instance.getToken();
        var count     = 0;

        for (var i = 0; i < instance.options.array.length &&
          ret.length < instance.options.choices ; i++) {

          var elem = instance.options.array[i];
          var foundPos = instance.options.ignoreCase ?
            elem.toLowerCase().indexOf(entry.toLowerCase()) :
            elem.indexOf(entry);

          while (foundPos != -1) {
            if (foundPos == 0 && elem.length != entry.length) {
              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
                elem.substr(entry.length) + "</li>");
              break;
            } else if (entry.length >= instance.options.partialChars &&
              instance.options.partialSearch && foundPos != -1) {
              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
                  foundPos + entry.length) + "</li>");
                break;
              }
            }

            foundPos = instance.options.ignoreCase ?
              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
              elem.indexOf(entry, foundPos + 1);

          }
        }
        if (partial.length)
          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length))
        return "<ul>" + ret.join('') + "</ul>";
      }
    }, options || { });
  }
});


Field.scrollFreeActivate = function(field) {
  setTimeout(function() {
    Field.activate(field);
  }, 1);
}

Ajax.InPlaceEditor = Class.create({
  initialize: function(element, url, options) {
    this.url = url;
    this.element = element = $(element);
    this.prepareOptions();
    this._controls = { };
    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
    Object.extend(this.options, options || { });
    if (!this.options.formId && this.element.id) {
      this.options.formId = this.element.id + '-inplaceeditor';
      if ($(this.options.formId))
        this.options.formId = '';
    }
    if (this.options.externalControl)
      this.options.externalControl = $(this.options.externalControl);
    if (!this.options.externalControl)
      this.options.externalControlOnly = false;
    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
    this.element.title = this.options.clickToEditText;
    this._boundCancelHandler = this.handleFormCancellation.bind(this);
    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
    this._boundWrapperHandler = this.wrapUp.bind(this);
    this.registerListeners();
  },
  checkForEscapeOrReturn: function(e) {
    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
    if (Event.KEY_ESC == e.keyCode)
      this.handleFormCancellation(e);
    else if (Event.KEY_RETURN == e.keyCode)
      this.handleFormSubmission(e);
  },
  createControl: function(mode, handler, extraClasses) {
    var control = this.options[mode + 'Control'];
    var text = this.options[mode + 'Text'];
    if ('button' == control) {
      var btn = document.createElement('input');
      btn.type = 'submit';
      btn.value = text;
      btn.className = 'editor_' + mode + '_button';
      if ('cancel' == mode)
        btn.onclick = this._boundCancelHandler;
      this._form.appendChild(btn);
      this._controls[mode] = btn;
    } else if ('link' == control) {
      var link = document.createElement('a');
      link.href = '#';
      link.appendChild(document.createTextNode(text));
      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
      link.className = 'editor_' + mode + '_link';
      if (extraClasses)
        link.className += ' ' + extraClasses;
      this._form.appendChild(link);
      this._controls[mode] = link;
    }
  },
  createEditField: function() {
    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
    var fld;
    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
      fld = document.createElement('input');
      fld.type = 'text';
      var size = this.options.size || this.options.cols || 0;
      if (0 < size) fld.size = size;
    } else {
      fld = document.createElement('textarea');
      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
      fld.cols = this.options.cols || 40;
    }
    fld.name = this.options.paramName;
    fld.value = text; // No HTML breaks conversion anymore
    fld.className = 'editor_field';
    if (this.options.submitOnBlur)
      fld.onblur = this._boundSubmitHandler;
    this._controls.editor = fld;
    if (this.options.loadTextURL)
      this.loadExternalText();
    this._form.appendChild(this._controls.editor);
  },
  createForm: function() {
    var ipe = this;
    function addText(mode, condition) {
      var text = ipe.options['text' + mode + 'Controls'];
      if (!text || condition === false) return;
      ipe._form.appendChild(document.createTextNode(text));
    };
    this._form = $(document.createElement('form'));
    this._form.id = this.options.formId;
    this._form.addClassName(this.options.formClassName);
    this._form.onsubmit = this._boundSubmitHandler;
    this.createEditField();
    if ('textarea' == this._controls.editor.tagName.toLowerCase())
      this._form.appendChild(document.createElement('br'));
    if (this.options.onFormCustomization)
      this.options.onFormCustomization(this, this._form);
    addText('Before', this.options.okControl || this.options.cancelControl);
    this.createControl('ok', this._boundSubmitHandler);
    addText('Between', this.options.okControl && this.options.cancelControl);
    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
    addText('After', this.options.okControl || this.options.cancelControl);
  },
  destroy: function() {
    if (this._oldInnerHTML)
      this.element.innerHTML = this._oldInnerHTML;
    this.leaveEditMode();
    this.unregisterListeners();
  },
  enterEditMode: function(e) {
    if (this._saving || this._editing) return;
    this._editing = true;
    this.triggerCallback('onEnterEditMode');
    if (this.options.externalControl)
      this.options.externalControl.hide();
    this.element.hide();
    this.createForm();
    this.element.parentNode.insertBefore(this._form, this.element);
    if (!this.options.loadTextURL)
      this.postProcessEditField();
    if (e) Event.stop(e);
  },
  enterHover: function(e) {
    if (this.options.hoverClassName)
      this.element.addClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onEnterHover');
  },
  getText: function() {
    return this.element.innerHTML;
  },
  handleAJAXFailure: function(transport) {
    this.triggerCallback('onFailure', transport);
    if (this._oldInnerHTML) {
      this.element.innerHTML = this._oldInnerHTML;
      this._oldInnerHTML = null;
    }
  },
  handleFormCancellation: function(e) {
    this.wrapUp();
    if (e) Event.stop(e);
  },
  handleFormSubmission: function(e) {
    var form = this._form;
    var value = $F(this._controls.editor);
    this.prepareSubmission();
    var params = this.options.callback(form, value) || '';
    if (Object.isString(params))
      params = params.toQueryParams();
    params.editorId = this.element.id;
    if (this.options.htmlResponse) {
      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Updater({ success: this.element }, this.url, options);
    } else {
      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
      Object.extend(options, {
        parameters: params,
        onComplete: this._boundWrapperHandler,
        onFailure: this._boundFailureHandler
      });
      new Ajax.Request(this.url, options);
    }
    if (e) Event.stop(e);
  },
  leaveEditMode: function() {
    this.element.removeClassName(this.options.savingClassName);
    this.removeForm();
    this.leaveHover();
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
    if (this.options.externalControl)
      this.options.externalControl.show();
    this._saving = false;
    this._editing = false;
    this._oldInnerHTML = null;
    this.triggerCallback('onLeaveEditMode');
  },
  leaveHover: function(e) {
    if (this.options.hoverClassName)
      this.element.removeClassName(this.options.hoverClassName);
    if (this._saving) return;
    this.triggerCallback('onLeaveHover');
  },
  loadExternalText: function() {
    this._form.addClassName(this.options.loadingClassName);
    this._controls.editor.disabled = true;
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._form.removeClassName(this.options.loadingClassName);
        var text = transport.responseText;
        if (this.options.stripLoadedTextTags)
          text = text.stripTags();
        this._controls.editor.value = text;
        this._controls.editor.disabled = false;
        this.postProcessEditField();
      }.bind(this),
      onFailure: this._boundFailureHandler
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },
  postProcessEditField: function() {
    var fpc = this.options.fieldPostCreation;
    if (fpc)
      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
  },
  prepareOptions: function() {
    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
      Object.extend(this.options, defs);
    }.bind(this));
  },
  prepareSubmission: function() {
    this._saving = true;
    this.removeForm();
    this.leaveHover();
    this.showSaving();
  },
  registerListeners: function() {
    this._listeners = { };
    var listener;
    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
      listener = this[pair.value].bind(this);
      this._listeners[pair.key] = listener;
      if (!this.options.externalControlOnly)
        this.element.observe(pair.key, listener);
      if (this.options.externalControl)
        this.options.externalControl.observe(pair.key, listener);
    }.bind(this));
  },
  removeForm: function() {
    if (!this._form) return;
    this._form.remove();
    this._form = null;
    this._controls = { };
  },
  showSaving: function() {
    this._oldInnerHTML = this.element.innerHTML;
    this.element.innerHTML = this.options.savingText;
    this.element.addClassName(this.options.savingClassName);
    this.element.style.backgroundColor = this._originalBackground;
    this.element.show();
  },
  triggerCallback: function(cbName, arg) {
    if ('function' == typeof this.options[cbName]) {
      this.options[cbName](this, arg);
    }
  },
  unregisterListeners: function() {
    $H(this._listeners).each(function(pair) {
      if (!this.options.externalControlOnly)
        this.element.stopObserving(pair.key, pair.value);
      if (this.options.externalControl)
        this.options.externalControl.stopObserving(pair.key, pair.value);
    }.bind(this));
  },
  wrapUp: function(transport) {
    this.leaveEditMode();
    this._boundComplete(transport, this.element);
  }
});

Object.extend(Ajax.InPlaceEditor.prototype, {
  dispose: Ajax.InPlaceEditor.prototype.destroy
});

Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
  initialize: function($super, element, url, options) {
    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
    $super(element, url, options);
  },

  createEditField: function() {
    var list = document.createElement('select');
    list.name = this.options.paramName;
    list.size = 1;
    this._controls.editor = list;
    this._collection = this.options.collection || [];
    if (this.options.loadCollectionURL)
      this.loadCollection();
    else
      this.checkForExternalText();
    this._form.appendChild(this._controls.editor);
  },

  loadCollection: function() {
    this._form.addClassName(this.options.loadingClassName);
    this.showLoadingText(this.options.loadingCollectionText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        var js = transport.responseText.strip();
        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
          throw 'Server returned an invalid collection representation.';
        this._collection = eval(js);
        this.checkForExternalText();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadCollectionURL, options);
  },

  showLoadingText: function(text) {
    this._controls.editor.disabled = true;
    var tempOption = this._controls.editor.firstChild;
    if (!tempOption) {
      tempOption = document.createElement('option');
      tempOption.value = '';
      this._controls.editor.appendChild(tempOption);
      tempOption.selected = true;
    }
    tempOption.update((text || '').stripScripts().stripTags());
  },

  checkForExternalText: function() {
    this._text = this.getText();
    if (this.options.loadTextURL)
      this.loadExternalText();
    else
      this.buildOptionList();
  },

  loadExternalText: function() {
    this.showLoadingText(this.options.loadingText);
    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
    Object.extend(options, {
      parameters: 'editorId=' + encodeURIComponent(this.element.id),
      onComplete: Prototype.emptyFunction,
      onSuccess: function(transport) {
        this._text = transport.responseText.strip();
        this.buildOptionList();
      }.bind(this),
      onFailure: this.onFailure
    });
    new Ajax.Request(this.options.loadTextURL, options);
  },

  buildOptionList: function() {
    this._form.removeClassName(this.options.loadingClassName);
    this._collection = this._collection.map(function(entry) {
      return 2 === entry.length ? entry : [entry, entry].flatten();
    });
    var marker = ('value' in this.options) ? this.options.value : this._text;
    var textFound = this._collection.any(function(entry) {
      return entry[0] == marker;
    }.bind(this));
    this._controls.editor.update('');
    var option;
    this._collection.each(function(entry, index) {
      option = document.createElement('option');
      option.value = entry[0];
      option.selected = textFound ? entry[0] == marker : 0 == index;
      option.appendChild(document.createTextNode(entry[1]));
      this._controls.editor.appendChild(option);
    }.bind(this));
    this._controls.editor.disabled = false;
    Field.scrollFreeActivate(this._controls.editor);
  }
});


Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
  if (!options) return;
  function fallback(name, expr) {
    if (name in options || expr === undefined) return;
    options[name] = expr;
  };
  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
    options.cancelLink == options.cancelButton == false ? false : undefined)));
  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
    options.okLink == options.okButton == false ? false : undefined)));
  fallback('highlightColor', options.highlightcolor);
  fallback('highlightEndColor', options.highlightendcolor);
};

Object.extend(Ajax.InPlaceEditor, {
  DefaultOptions: {
    ajaxOptions: { },
    autoRows: 3,                                // Use when multi-line w/ rows == 1
    cancelControl: 'link',                      // 'link'|'button'|false
    cancelText: 'cancel',
    clickToEditText: 'Click to edit',
    externalControl: null,                      // id|elt
    externalControlOnly: false,
    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
    formClassName: 'inplaceeditor-form',
    formId: null,                               // id|elt
    highlightColor: '#ffff99',
    highlightEndColor: '#ffffff',
    hoverClassName: '',
    htmlResponse: true,
    loadingClassName: 'inplaceeditor-loading',
    loadingText: 'Loading...',
    okControl: 'button',                        // 'link'|'button'|false
    okText: 'ok',
    paramName: 'value',
    rows: 1,                                    // If 1 and multi-line, uses autoRows
    savingClassName: 'inplaceeditor-saving',
    savingText: 'Saving...',
    size: 0,
    stripLoadedTextTags: false,
    submitOnBlur: false,
    textAfterControls: '',
    textBeforeControls: '',
    textBetweenControls: ''
  },
  DefaultCallbacks: {
    callback: function(form) {
      return Form.serialize(form);
    },
    onComplete: function(transport, element) {
      new Effect.Highlight(element, {
        startcolor: this.options.highlightColor, keepBackgroundImage: true });
    },
    onEnterEditMode: null,
    onEnterHover: function(ipe) {
      ipe.element.style.backgroundColor = ipe.options.highlightColor;
      if (ipe._effect)
        ipe._effect.cancel();
    },
    onFailure: function(transport, ipe) {
      alert('Error communication with the server: ' + transport.responseText.stripTags());
    },
    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
    onLeaveEditMode: null,
    onLeaveHover: function(ipe) {
      ipe._effect = new Effect.Highlight(ipe.element, {
        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
        restorecolor: ipe._originalBackground, keepBackgroundImage: true
      });
    }
  },
  Listeners: {
    click: 'enterEditMode',
    keydown: 'checkForEscapeOrReturn',
    mouseover: 'enterHover',
    mouseout: 'leaveHover'
  }
});

Ajax.InPlaceCollectionEditor.DefaultOptions = {
  loadingCollectionText: 'Loading options...'
};


Form.Element.DelayedObserver = Class.create({
  initialize: function(element, delay, callback) {
    this.delay     = delay || 0.5;
    this.element   = $(element);
    this.callback  = callback;
    this.timer     = null;
    this.lastValue = $F(this.element);
    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
  },
  delayedListener: function(event) {
    if(this.lastValue == $F(this.element)) return;
    if(this.timer) clearTimeout(this.timer);
    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
    this.lastValue = $F(this.element);
  },
  onTimerEvent: function() {
    this.timer = null;
    this.callback(this.element, $F(this.element));
  }
});

if(!Control) var Control = {};
Control.Slider = Class.create();

Control.Slider.prototype = {
  initialize: function(handle, track, options) {
    var slider = this;

    if(handle instanceof Array) {
      this.handles = handle.collect( function(e) { return $(e) });
    } else {
      this.handles = [$(handle)];
    }

    this.track   = $(track);
    this.options = options || {};

    this.axis      = this.options.axis || 'horizontal';
    this.increment = this.options.increment || 1;
    this.step      = parseInt(this.options.step || '1');
    this.range     = this.options.range || $R(0,1);

    this.value     = 0; // assure backwards compat
    this.values    = this.handles.map( function() { return 0 });
    this.spans     = this.options.spans ? this.options.spans.map(function(s){ return $(s) }) : false;
    this.options.startSpan = $(this.options.startSpan || null);
    this.options.endSpan   = $(this.options.endSpan || null);

    this.restricted = this.options.restricted || false;

    this.maximum   = this.options.maximum || this.range.end;
    this.minimum   = this.options.minimum || this.range.start;

    this.alignX = parseInt(this.options.alignX || '0');
    this.alignY = parseInt(this.options.alignY || '0');

    this.trackLength = this.maximumOffset() - this.minimumOffset();
    this.handleLength = this.isVertical() ? this.handles[0].offsetHeight : this.handles[0].offsetWidth;

    this.active   = false;
    this.dragging = false;
    this.disabled = false;

    if(this.options.disabled) this.setDisabled();

    this.allowedValues = this.options.values ? this.options.values.sortBy(Prototype.K) : false;
    if(this.allowedValues) {
      this.minimum = this.allowedValues.min();
      this.maximum = this.allowedValues.max();
    }

    this.eventMouseDown = this.startDrag.bindAsEventListener(this);
    this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
    this.eventMouseMove = this.update.bindAsEventListener(this);

    this.handles.each( function(h,i) {
      i = slider.handles.length-1-i;
      slider.setValue(parseFloat(
        (slider.options.sliderValue instanceof Array ?
          slider.options.sliderValue[i] : slider.options.sliderValue) ||
         slider.range.start), i);
      Element.makePositioned(h); // fix IE
      Event.observe(h, "mousedown", slider.eventMouseDown);
    });

    Event.observe(this.track, "mousedown", this.eventMouseDown);
    Event.observe(document, "mouseup", this.eventMouseUp);
    Event.observe(document, "mousemove", this.eventMouseMove);

    this.initialized = true;
  },
  dispose: function() {
    var slider = this;
    Event.stopObserving(this.track, "mousedown", this.eventMouseDown);
    Event.stopObserving(document, "mouseup", this.eventMouseUp);
    Event.stopObserving(document, "mousemove", this.eventMouseMove);
    this.handles.each( function(h) {
      Event.stopObserving(h, "mousedown", slider.eventMouseDown);
    });
  },
  setDisabled: function(){
    this.disabled = true;
  },
  setEnabled: function(){
    this.disabled = false;
  },
  getNearestValue: function(value){
    if(this.allowedValues){
      if(value >= this.allowedValues.max()) return(this.allowedValues.max());
      if(value <= this.allowedValues.min()) return(this.allowedValues.min());

      var offset = Math.abs(this.allowedValues[0] - value);
      var newValue = this.allowedValues[0];
      this.allowedValues.each( function(v) {
        var currentOffset = Math.abs(v - value);
        if(currentOffset <= offset){
          newValue = v;
          offset = currentOffset;
        }
      });
      return newValue;
    }
    if(value > this.range.end) return this.range.end;
    if(value < this.range.start) return this.range.start;
    return value;
  },
  setValue: function(sliderValue, handleIdx){
    if(!this.active) {
      this.activeHandle    = this.handles[handleIdx];
      this.activeHandleIdx = handleIdx;
      this.updateStyles();
    }
    handleIdx = handleIdx || this.activeHandleIdx || 0;
    if(this.initialized && this.restricted) {
      if((handleIdx>0) && (sliderValue<this.values[handleIdx-1]))
        sliderValue = this.values[handleIdx-1];
      if((handleIdx < (this.handles.length-1)) && (sliderValue>this.values[handleIdx+1]))
        sliderValue = this.values[handleIdx+1];
    }
    sliderValue = this.getNearestValue(sliderValue);
    this.values[handleIdx] = sliderValue;
    this.value = this.values[0]; // assure backwards compat

    this.handles[handleIdx].style[this.isVertical() ? 'top' : 'left'] =
      this.translateToPx(sliderValue);

    this.drawSpans();
    if(!this.dragging || !this.event) this.updateFinished();
  },
  setValueBy: function(delta, handleIdx) {
    this.setValue(this.values[handleIdx || this.activeHandleIdx || 0] + delta,
      handleIdx || this.activeHandleIdx || 0);
  },
  translateToPx: function(value) {
    return Math.round(
      ((this.trackLength-this.handleLength)/(this.range.end-this.range.start)) *
      (value - this.range.start)) + "px";
  },
  translateToValue: function(offset) {
    return ((offset/(this.trackLength-this.handleLength) *
      (this.range.end-this.range.start)) + this.range.start);
  },
  getRange: function(range) {
    var v = this.values.sortBy(Prototype.K);
    range = range || 0;
    return $R(v[range],v[range+1]);
  },
  minimumOffset: function(){
    return(this.isVertical() ? this.alignY : this.alignX);
  },
  maximumOffset: function(){
    return(this.isVertical() ?
      this.track.offsetHeight - this.alignY : this.track.offsetWidth - this.alignX);
  },
  isVertical:  function(){
    return (this.axis == 'vertical');
  },
  drawSpans: function() {
    var slider = this;
    if(this.spans)
      $R(0, this.spans.length-1).each(function(r) { slider.setSpan(slider.spans[r], slider.getRange(r)) });
    if(this.options.startSpan)
      this.setSpan(this.options.startSpan,
        $R(0, this.values.length>1 ? this.getRange(0).min() : this.value ));
    if(this.options.endSpan)
      this.setSpan(this.options.endSpan,
        $R(this.values.length>1 ? this.getRange(this.spans.length-1).max() : this.value, this.maximum));
  },
  setSpan: function(span, range) {
    if(this.isVertical()) {
      span.style.top = this.translateToPx(range.start);
      span.style.height = this.translateToPx(range.end - range.start);
    } else {
      span.style.left = this.translateToPx(range.start);
      span.style.width = this.translateToPx(range.end - range.start);
    }
  },
  updateStyles: function() {
    this.handles.each( function(h){ Element.removeClassName(h, 'selected') });
    Element.addClassName(this.activeHandle, 'selected');
  },
  startDrag: function(event) {
    if(Event.isLeftClick(event)) {
      if(!this.disabled){
        this.active = true;

        var handle = Event.element(event);
        var pointer  = [Event.pointerX(event), Event.pointerY(event)];
        if(handle==this.track) {
          var offsets  = Position.cumulativeOffset(this.track);
          this.event = event;
          this.setValue(this.translateToValue(
           (this.isVertical() ? pointer[1]-offsets[1] : pointer[0]-offsets[0])-(this.handleLength/2)
          ));
          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        } else {
          while((this.handles.indexOf(handle) == -1) && handle.parentNode)
            handle = handle.parentNode;

          this.activeHandle    = handle;
          this.activeHandleIdx = this.handles.indexOf(this.activeHandle);
          this.updateStyles();

          var offsets  = Position.cumulativeOffset(this.activeHandle);
          this.offsetX = (pointer[0] - offsets[0]);
          this.offsetY = (pointer[1] - offsets[1]);
        }
      }
      Event.stop(event);
    }
  },
  update: function(event) {
   if(this.active) {
      if(!this.dragging) this.dragging = true;
      this.draw(event);
      if(navigator.appVersion.indexOf('AppleWebKit')>0) window.scrollBy(0,0);
      Event.stop(event);
   }
  },
  draw: function(event) {
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    var offsets = Position.cumulativeOffset(this.track);
    pointer[0] -= this.offsetX + offsets[0];
    pointer[1] -= this.offsetY + offsets[1];
    this.event = event;
    this.setValue(this.translateToValue( this.isVertical() ? pointer[1] : pointer[0] ));
    if(this.initialized && this.options.onSlide)
      this.options.onSlide(this.values.length>1 ? this.values : this.value, this);
  },
  endDrag: function(event) {
    if(this.active && this.dragging) {
      this.finishDrag(event, true);
      Event.stop(event);
    }
    this.active = false;
    this.dragging = false;
  },
  finishDrag: function(event, success) {
    this.active = false;
    this.dragging = false;
    this.updateFinished();
  },
  updateFinished: function() {
    if(this.initialized && this.options.onChange)
      this.options.onChange(this.values.length>1 ? this.values : this.value, this);
    this.event = null;
  }
}

/* START toggler.js */
Toggler = Class.create()
Toggler.prototype = {
  initialize: function(control_id, target_id, save_callback)
  {
    this.control = $(control_id)
    this.target = $(target_id)
    this.class_open = 'destroy'
    this.class_closed = 'create'

    this.state = this.target.visible()

    this.change_classes = true
    this.cancel_text = 'Close'
    this.original_text = this.control.innerHTML

    if (save_callback) this.save_callback = save_callback.bind(this)

    this.bound_event = this.on_click.bindAsEventListener(this)
  },

  show: function()
  {
    this.state = true
    this.control.innerHTML = this.cancel_text

    if (this.change_classes)
    {
      this.control.removeClassName(this.class_closed)
      this.control.addClassName(this.class_open)
    }

    if (!this.control.hasClassName('noeffect'))
    {
      new Effect.Appear(this.target, {duration: 0.3})
    }
    else
    {
      this.target.show()
    }

    setTimeout(this.select_first_field.bind(this), 500)
    if (this.save_callback) this.save_callback()
  },

  hide: function()
  {
    this.state = false
    this.control.innerHTML = this.original_text

    if (this.change_classes)
    {
      this.control.addClassName(this.class_closed)
      this.control.removeClassName(this.class_open)
    }
    this.target.hide()
    if (this.save_callback) this.save_callback()
  },

  select_first_field: function()
  {
    if (this.target.nodeName == 'FORM')
    {
      this.target.focusFirstElement()
      return true
    }
    else
    {
      try
      {
        var forms = $$('#' + this.target.id + ' form')
        if (forms.length > 0)
        {
          forms.first().focusFirstElement()
          return true
        }
      }
      catch (exception)
      {
        return false
      }

      return false
    }
  },

  toggle: function()
  {
    this.state ? this.hide() : this.show()
  },

  add_event: function()
  {
    Event.observe(this.control, 'click', this.bound_event)
  },

  remove_event: function()
  {
    Event.stopObserving(this.control, 'click', this.bound_event)
  },

  on_click: function(e)
  {
    this.toggle()
    Event.stop(e)
    return false
  }
}

/* END toggler.js */

/* START preferences.js */
/* User preferences */
var Preferences = new Object()

Preferences.Methods = {
  save_dashboard_table_view_setting: function(setting)
  {
    new Ajax.Request('/preferences/dashboard/view', {method:'post', postBody:'view=' + setting})
  },

  save_client_view_setting: function(view, client_id)
  {
    new Ajax.Request('/preferences/clients/view', {method:'post', postBody:'view=' + view + '&client_id=' + client_id})
  }
}

Object.extend(Preferences, Preferences.Methods)

/* END preferences.js */

/* START model_errors.js */
var ModelErrors = Class.create({
  initialize: function(objectName, options) {
    this.options = {
      errorTextSelector: '#errorExplanation ul li',
      messageClass: 'popinfo_inner'
    }
    Object.extend(this.options, options || { })
    this.objectName = objectName

    this.createFieldWarningEvents()
  },

  createFieldWarningEvents: function() {
    $$(this.options.errorTextSelector).each(function(listElement) {
      var errorText = listElement.innerHTML
      var errorFieldName = errorText.split(' ')[0].toLowerCase()
      var fieldID = this.objectName.toLowerCase() + '_' + errorFieldName

      if ($(fieldID)) {
        Event.observe(fieldID, 'focus', function() { this.showError(fieldID, errorText) }.bind(this))
        Event.observe(fieldID, 'blur',  function() { this.removeError(fieldID, errorText) }.bind(this))
      }
    }.bind(this))
  },

  showError: function(fieldID, errorText) {
    var messageID = fieldID + '_error'

    if ($(messageID)) {
      return
    }

    $(fieldID).insert({ before: '<div class="model_error" id="#{messageID}"><div class="#{messageClass}">#{message}</div><div class="popinfo_image"></div></div>'.interpolate({ messageID: messageID, messageClass: this.options.messageClass, message: errorText }) })
    $(messageID).clonePosition($(fieldID))
  },

  removeError: function(fieldID, errorText) {
    var messageElement = $(fieldID + '_error')
    if (messageElement) {
      messageElement.remove()
    }
  }
})

/* END model_errors.js */

/* START menu.js */
var Menu = Class.create()
Menu.prototype = {
  initialize: function(control_id, menu_id, menu_item_class)
  {
    this.control_id = control_id
    this.menu_id = menu_id
    this.menu_item_class = menu_item_class

    this.add_menu_control()
  },

  add_menu_control: function()
  {
    Event.observe(this.control_id, 'click', function(e)
    {
      this.remove_menu_control_event = this.remove_menu_control.bindAsEventListener(this)
      Event.observe(document, 'click', this.remove_menu_control_event)

      Element.toggle(this.menu_id)
      Position.absolutize(this.menu_id)
      Position.clone(this.control_id, this.menu_id, { setLeft: true, setTop: true, setWidth: false, setHeight: false, offsetTop: 22 })

      if (this.callback)
      {
        this.callback()
      }

      Event.stop(e)
      return false
    }.bind(this))

    $($A(document.getElementsByClassName(this.menu_item_class))).each(function(link)
    {
      Event.observe(link, 'click', function(e)
      {
        Event.stopObserving(document, 'click', this.remove_menu_control_event)
        Element.hide(this.menu_id)
        Event.stop(e)
        return false
      }.bind(this))
    }.bind(this))
  },

  remove_menu_control: function(e)
  {
    var element = Event.element(e)
    if (!element.hasClassName(this.menu_item_class) && element.nodeName != 'INPUT')
    {
      this.close_menu()
    }
  },

  close_menu: function()
  {
    Element.hide(this.menu_id)
    Event.stopObserving(document, 'click', this.add_menu_control)
  }
}
/* END menu.js */

/* START in_place_select.js */
InPlaceSelect = Class.create()
InPlaceSelect.prototype = {
  initialize: function(options)
  {
    this.form_id = 'InPlaceSelect_' + (new Date()).getTime()
    this.options = {
      class_name:           '',
      url:                  '',
      cancel_class_name:    '',
      select_class_name:    '',
      save_url:             '',
      container_class_name: '',
      append_parameters:    false,
      completed_callback:   null
    }
    Object.extend(this.options, options || { })

    Event.observe(document, 'click', this.show_form.bindAsEventListener(this))
    Event.observe(document, 'click', this.cancel_form.bindAsEventListener(this))
    Event.observe(document, 'change', this.save.bindAsEventListener(this))
  },

  show_form: function(event)
  {
    var element = Event.element(event)
    var ajax_parameters = ''

    if (element.hasClassName(this.options.class_name))
    {
      this.hidden_element = element
      element.hide()

      Element.insert(element, { after: '<div id="' + this.form_id + '"></div>' })

      if (this.options.append_parameters)
      {
        ajax_parameters = this.options.append_parameters(element)
      }

      new Ajax.Updater(this.form_id, this.options.url, { parameters: ajax_parameters })

      Event.stop(event)
      return false
    }
  },

  cancel_form: function(event)
  {
    var element = Event.element(event)

    if (element.hasClassName(this.options.cancel_class_name))
    {
      $(this.form_id).remove()
      this.hidden_element.show()

      Event.stop(event)
      return false
    }
  },

  save: function(event)
  {
    var element = Event.element(event)

    if (element.hasClassName(this.options.select_class_name))
    {
      var select = $$('#' + this.form_id + ' .' + this.options.select_class_name).first()
      var ajax_parameters = select.name + '=' + select.value
      var container = this.hidden_element

      if (this.options.append_parameters)
      {
        ajax_parameters = ajax_parameters + '&' + this.options.append_parameters(element)
      }

      if (this.options.container_class_name)
      {
        container = this.hidden_element.up('.' + this.options.container_class_name)
      }

      this.hidden_element.show()
      new Ajax.Updater(container, this.options.save_url, { parameters: ajax_parameters } )
      $(this.form_id).remove()

      Event.stop(event)
      return false
    }
  }
}

/* END in_place_select.js */

/* START detectors.js */
function IEFlashVersion()
{
  var version;
  var axo;
  var e;


  try {
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
    version = axo.GetVariable("$version");
  } catch (e) {
  }

  if (!version)
  {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");


      version = "WIN 6,0,21,0";

      axo.AllowScriptAccess = "always";

      version = axo.GetVariable("$version");

    } catch (e) {
    }
  }

  if (!version)
  {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version = axo.GetVariable("$version");
    } catch (e) {
    }
  }

  if (!version)
  {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version = "WIN 3,0,18,0";
    } catch (e) {
    }
  }

  if (!version)
  {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
      version = "WIN 2,0,0,11";
    } catch (e) {
      version = -1;
    }
  }

  return version;
}

BrowserCapabilities = new Object()
BrowserCapabilities.analyse = function()
{
  var results = $H(Detectors).keys().collect(function(method)
  {
    var result = Detectors[method].run()

    if (typeof(result[0]) == 'object')
    {
      return $A(result).collect(function(sub_result)
      {
        return sub_result[0] + ': ' + sub_result[1]
      })
    }
    else
    {
      return result[0] + ': ' + result[1]
    }
  })

  return results.join("\n")
}

Detectors = new Object()

/* Methods for collecting browser/screen settings */
Detectors.resolution =
{
  run : function()
  {
    return ['resolution', screen.width + 'x' + screen.height]
  }
}

Detectors.depth =
{
  run : function()
  {
    return ['color_depth', screen.colorDepth]
  }
}

Detectors.flash =
{
  run : function()
  {
    var flash_version = 0
    var flash_installed = 'No'
    if (navigator.plugins && navigator.plugins.length)
    {
      x = navigator.plugins['Shockwave Flash']
      if (x)
      {
        flash_installed = 'Flash and Shockwave'
        if (x.description)
        {
          y = x.description
          flash_version = y.charAt(y.indexOf('.')-1)
        }
      }
      else
      {
        flash_installed = 'Flash installed'
      }
      if (navigator.plugins['Shockwave Flash 2.0'])
      {
        flash_installed = 'Flash and Shockwave Flash 2.0'
        flash_version = 2
      }
    }
    else if (navigator.mimeTypes && navigator.mimeTypes.length)
    {
      x = navigator.mimeTypes['application/x-shockwave-flash']
      if (x && x.enabledPlugin)
        flash_installed = 'Flash and Shockwave'
      else
        flash_installed = 'Flash installed'
    }
    else
    {
      var ie_flash_version = IEFlashVersion()

      if (ie_flash_version > 0)
      {
        flash_installed = 'Flash installed'
        flash_version = ie_flash_version
      }
    }
    return [['flash_version', flash_version], ['flash_installed', flash_installed]]
  }
}

Detectors.ua =
{
  run : function()
  {
    var ua, version = 'unknown'
    var agent = navigator.userAgent.toLowerCase()
    if (typeof(window.opera) == 'undefined')
    {
      if (document.all && !window.print)
      {
        ua = 'Mac IE'
        version = parseFloat(navigator.appVersion.split('MSIE')[1])
      }
      else if (agent.indexOf('msie') != -1 && agent.indexOf('webtv') == -1)
      {
        ua = 'IE'
        version = parseFloat(navigator.appVersion.split('MSIE')[1])
      }
      else if (agent.indexOf('safari') != - 1)
      {
        ua = 'Safari'
        version = parseFloat(agent.substring(agent.lastIndexOf('safari/') + 7 ))
      }
      else if (agent.indexOf('camino') != -1)
      {
        ua = 'Camino'
        version = parseFloat(agent.substring(agent.indexOf('camino/') + 7))
      }
      else if (agent.indexOf('flock') != -1)
      {
        ua = 'Flock'
        version = parseFloat(agent.substring(agent.indexOf('flock/') + 7))
      }
      else if (agent.indexOf('firefox/') != -1)
      {
        ua = 'Firefox'
        version = parseFloat(agent.substring(agent.indexOf('firefox/') + 8))
      }
      else if (agent.indexOf('firebird/') != -1)
      {
        ua = 'Firebird'
        version = parseFloat(agent.substring(agent.indexOf('firebird/') + 9))
      }
      else if (agent.indexOf('konqueror') != -1)
      {
        ua = 'Konqueror'
        version = parseFloat(agent.substring(agent.indexOf('konqueror/') + 10));
      }
      else if (agent.indexOf('omniweb') != - 1)
      {
        ua = 'OmniWeb'
        version = parseFloat(agent.substring(agent.lastIndexOf('omniweb/') + 8))
      }
      else if (agent.indexOf('maxthon') != -1)
      {
        ua = 'Maxthon'
        version = parseFloat(agent.substring(agent.lastIndexOf('maxthon/') + 8))
      }
      else if (agent.indexOf('icab') != -1)
      {
        ua = 'iCab'
        version = parseFloat(agent.substring(agent.indexOf('icab') + 5))
      }
      else if (agent.indexOf('aol') != -1)
      {
        ua = 'AOL'
        version = parseFloat(agent.substring(agent.indexOf('aol') + 4))
      }
      else if (agent.indexOf('webtv') != -1)
      {
        ua = 'WebTV'
        version = parseFloat(agent.substring(agent.indexOf('webtv') + 6))
      }
      else if (this.isGecko && agent.indexOf('gecko/') + 14 == agent.length)
      {
        ua = 'Mozilla'
        version = parseFloat(agent.substring(agent.indexOf('rv:') + 3))
      }
      else if ( (agent.indexOf('netscape') != -1))
      {
        ua = 'Netscape'
        version = parseFloat(agent.substring(agent.indexOf('rv:') + 3))
      }
      else
      {
        ua = 'Unknown'
        version = 'Uknown'
      }
    }
    else
    {
      ua = 'opera'
      if (opera.version())
        version = opera.version()
      else
        version = '5 or 6'
    }

    return [['user_agent', ua], ['version', version]]
  }
}

Detectors.os =
{
  run : function()
  {
    var agent = navigator.userAgent.toLowerCase()

    css_mode = document.compatMode ? document.compatMode : 'Backwards compatibility';

    if (agent.indexOf('win') != -1)
    {
      os = 'Windows'
      if (agent.indexOf('95') != -1)
        os += ' 95'
      else if (agent.indexOf('98') != -1)
        os += ' 98'
      else if (agent.indexOf('nt 5.0') != -1)
        os += ' 2000'
      else if (agent.indexOf('win32') != -1)
        os += ' win32'
      else if (agent.indexOf('32bit') != -1)
        os += ' 32bit'
      else if (agent.indexOf('xp') != -1 || agent.indexOf('nt 5.1') != -1)
        os += ' XP'
      else if (agent.indexOf('nt') != -1)
        os += ' NT'
    }
    else if (agent.indexOf('mac') != -1)
    {
      os = 'Mac OS'
      if (agent.indexOf('os x') != -1)
        os += ' X'
    }
    else if (agent.indexOf('unix') != -1 || agent.indexOf('sunos') != -1 || agent.indexOf('bsd') != -1 || agent.indexOf('x11') != -1)
      os = 'UNIX'
    else if (agent.indexOf('linux') != -1)
      os = 'Linux'
    else
      os = 'Unknown'

    return ['OS', os]
  }
}

Detectors.css_mode =
{
  run : function()
  {
    css_mode = document.compatMode ? document.compatMode : 'Backwards compatibility';

    return ['css_mode', css_mode]
  }
}

Detectors.java =
{
  run : function()
  {
    var java_installed = false
    if (navigator.mimeTypes && navigator.mimeTypes.length)
    {
      if (typeof(navigator.mimeTypes['application/x-java-vm']) != undefined)
        java_installed = true;
        if (navigator.plugins)
        {
          for (var i=0; i < navigator.plugins.length; i++)
          {
            if (navigator.plugins[i].name.indexOf('Java Plug-in') >= 0)
            {
              java_installed = true
              v_java = navigator.plugins[i].description.substring(navigator.plugins[i].description.lastIndexOf('Plug-in ') + 8, navigator.plugins[i].description.lastIndexOf(' for'))
              break
            }
          }
        }
    }
    else
    {
      var java = new Object();
      java_installed = java.installed=navigator.javaEnabled() ? true : false;
      if (!java_installed)
      {
        var plugin_types = ['application/x-java-jnlp-file', 'application/x-java-applet', 'JavaWebStart.IsInstalled', 'Java']
        for (var i = 0; i < plugin_types.length; i++)
        {
          document.write("<SCRIPT LANGUAGE=\"VBScript\"><!-- on error resume next \n java_installed = IsObject(CreateObject('" + plugin_types[i] + "'))\n // --></SCR" + "IPT>")
          if (java_installed)
            break
        }
      }
    }

    if (java_installed)
      java_installed_text = 'Java installed'
    else
      java_installed_text = 'Java not installed'

    return ['java', java_installed_text]
  }
}


/* END detectors.js */

/* START colour_slider.js */
var ColourSlider = Class.create()
ColourSlider.prototype = {
  initialize: function(slider, colour_name, block, save_callback, range)
  {
    range = typeof(range) == 'undefined' ? $R(0, 255) : range

    this.colour_block = block
    this.slider = slider
    this.colour_name = colour_name
    this.save_callback = save_callback
    this.range = range
    this.track = slider
    this.handle = slider.down('div.handle')

    this.create_slider()
  },

  create_slider: function()
  {
    if (this.control) return this.control

    this.control = new Control.Slider(this.handle, this.track,
    {
      range: this.range,
      sliderValue: this.colour_block.get(this.colour_name),
      disabled: false,
      onChange: this.updateColourAndSave.bind(this),
      onSlide: this.updateColour.bind(this)
    })
  },

  updateColourAndSave: function(value)
  {
    this.updateColour(value)
    if (this.save_callback) this.save_callback()
  },

  updateColour: function(value)
  {
    this.colour_block.set(this.colour_name, Math.round(value))
    this.colour_block
    this.colour_block.update()
  }
}

/* END colour_slider.js */

/* START colour_block.js */
var ColourBlock = Class.create()
ColourBlock.prototype = {
  initialize: function(block, value_field)
  {
    this.colours = Array(0, 0, 0)
    this.block = block
    this.value_field = value_field

    this.set_preset_colours()
  },

  /* The following methods return and expect RGB values */
  red: function() { return this.colours[0] },
  green: function() { return this.colours[1] },
  blue: function() { return this.colours[2] },

  set_red: function(red) { this.colours[0] = red },
  set_green: function(green) { this.colours[1] = green },
  set_blue: function(blue) { this.colours[2] = blue },

  update: function()
  {
    var colour = 'rgb(' + this.colours[0] + ',' + this.colours[1] + ',' + this.colours[2] + ')'
    this.value_field.value = '#' + this.to_hex()
    $(this.block).setStyle({ backgroundColor: colour })
  },

  set_preset_colours: function()
  {
    try
    {
      var red   = $(this.value_field).value.charAt(1) + $(this.value_field).value.charAt(2)
      var green = $(this.value_field).value.charAt(3) + $(this.value_field).value.charAt(4)
      var blue  = $(this.value_field).value.charAt(5) + $(this.value_field).value.charAt(6)

      this.block.style.backgroundColor = this.value_field.value

      this.set_red(this.rgb(red))
      this.set_green(this.rgb(green))
      this.set_blue(this.rgb(blue))

      this.update()
    }
    catch (exception)
    {
      this.set_red(0)
      this.set_green(0)
      this.set_blue(0)
    }
  },

  to_hex: function()
  {
    var hex = ''

    $A(this.colours).each(function(colour)
    {
      var value = this.hex(colour)

      if (value.length == 1) { value = '0' + value }

      hex = hex + value
    }.bind(this))

    return hex
  },

  hex: function(d)
  {
    var hex_map = '0123456789ABCDEF'
    var h = hex_map.substr(d&15, 1)

    while (d > 15) { d >>= 4; h = hex_map.substr(d&15, 1) + h }
    return h
  },

  rgb: function(hex)
  {
    return parseInt(hex, 16) || 0
  },

  /* Consider these private */
  get: function(colour_name)
  {
    switch(colour_name)
    {
      case 'red':
        return this.colours[0]
      break;

      case 'green':
        return this.colours[1]
      break;

      case 'blue':
        return this.colours[2]
      break;
    }
  },

  set: function(colour_name, value)
  {
    switch(colour_name)
    {
      case 'red':
        return this.set_red(value)
      break;

      case 'green':
        return this.set_green(value)
      break;

      case 'blue':
        return this.set_blue(value)
      break;
    }
  }
}

/* END colour_block.js */

/* START table_helper.js */
var TableHelper = new Object()

TableHelper.Methods = {
  stripe: function(class_name)
  {
    var classes = document.getElementsByClassName(class_name)

    if (!classes) return

    $A(classes).each(function(table)
    {
      $A($$('tbody')).each(function(tbody)
      {
        var even = false
        $A($$('tr')).each(function(tr, row_id)
        {
          tr.addClassName(even ? 'even' : 'odd')

          even = !even
        })
      })
    })
  }
}

Object.extend(TableHelper, TableHelper.Methods)
/* END table_helper.js */

/* START stripe_helper.js */
var StripeHelper = new Object()

StripeHelper.Methods = {
  stripe: function(class_name)
  {
    var even = false
    $(document.getElementsByClassName(class_name)).each(function(item)
    {
      item.addClassName(even ? 'even' : 'odd')
      even = !even
    })
  }
}

Object.extend(StripeHelper, StripeHelper.Methods)
/* END stripe_helper.js */

/* START slider_helper.js */
var SliderHelper = new Object()

SliderHelper.Methods = {
  show: function(container_id, slider_id, value, colour_value, size, max)
  {
    var handle_id = 'handle' + slider_id
    var track_id = 'track' + slider_id
    var value_id = 'slider_value' + slider_id

    new Control.Slider(handle_id, track_id,
    {
      onSlide: function(v) { v = v * size; var col = make_col(v, size); $(value_id).value = Math.round((v / size) * max); $(track_id).style.backgroundColor = make_rgb_col(col)},
      onChange: function(v) { v = v * size; var col = make_col(v, size); $(value_id).value = Math.round((v / size) * max); $(track_id).style.backgroundColor = make_rgb_col(col)},
      maximum: size,
      sliderValue: value
    })

    col = make_col(colour_value, max)
    $(track_id).style.backgroundColor = make_rgb_col(col)
    Element.remove(container_id)
  }
}

Object.extend(SliderHelper, SliderHelper.Methods)
/* END slider_helper.js */

/* START show_hide_helper.js */
var ShowHideHelper = new Object()

ShowHideHelper.Methods = {
  remove_events: function()
  {
    $$('a.show_hide').each(function(element)
    {
      var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''))
      toggler.remove_event()
    })
  },

  add_events: function()
  {
    $$('a.show_hide').each(function(element)
    {
      var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''))
      toggler.add_event()
    })
  },

  invert: function(element)
  {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''))
    toggler.hide()
  },

  invert_and_set_title: function(element, title)
  {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''))
    toggler.hide()
    toggler.original_text = title
    element.innerHTML = title
  },

  project_list_show_hide: function()
  {
    $$('a.project_show_hide').each(function(element)
    {
      ShowHideHelper.add_project_show_hide(element)
    })
  },

  add_project_show_hide: function(element)
  {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''), function()
    {
      var view = this.state ? 'show' : 'hide'
      var client_id = this.target.id.match(/\d+$/)[0]

      Preferences.save_client_view_setting(view, client_id)
    })
    toggler.class_open = 'close'
    toggler.class_closed = 'open'
    toggler.cancel_text = toggler.original_text
    toggler.add_event()
  }
}

Object.extend(ShowHideHelper, ShowHideHelper.Methods)
/* END show_hide_helper.js */

/* START highlight_helper.js */
var HighlightHelper = new Class.create()
HighlightHelper.prototype = {
  initialize: function(class_name)
  {
    this.class_name = class_name

    this.enable()
  },

  enable: function()
  {
    Event.observe(document, 'mouseover', this.mouse_over.bindAsEventListener(this))
    Event.observe(document, 'mouseout', this.mouse_out.bindAsEventListener(this))
  },

  mouse_over: function(event)
  {
    var element = Event.element(event)
    var hover_parent = this.find_hover_parent(element)

    if (hover_parent && hover_parent.hasClassName(this.class_name))
    {
      hover_parent.addClassName('hover_active')
    }
  },

  mouse_out: function(event)
  {
    var element = Event.element(event)
    var hover_parent = this.find_hover_parent(element)

    if (hover_parent && hover_parent.hasClassName(this.class_name))
    {
      hover_parent.removeClassName('hover_active')
    }
  },

  find_hover_parent: function(element)
  {
    if (!element) return
    element = $(element)

    if (element.hasClassName(this.class_name))
    {
      return element
    }
    else
    {
      return element.ancestors().find(function(parent) { if (parent) { return parent.hasClassName(this.class_name) } }.bind(this))
    }
  }
}

/* END highlight_helper.js */

/* START colour_block_helper.js */
if (!window.ColourBlockHelper) var ColourBlockHelper = new Object()

ColourBlockHelper.apply_colour_slider_to = function(slider, value_field, save_callback)
{
  var red = slider.down('div.slider')
  var green = red.next('div.slider')
  var blue = green.next('div.slider')
  var block = slider.next('div.colour_block')

  var range = $R(0, 255)

  if (slider.hasClassName('light')) range = $R(220, 255)
  if (slider.hasClassName('dark')) range = $R(0, 120)

  var colour_block = new ColourBlock(block, value_field)
  new ColourSlider(red, 'red', colour_block, save_callback, range)
  new ColourSlider(green, 'green', colour_block, save_callback, range)
  new ColourSlider(blue, 'blue', colour_block, save_callback, range)
}
/* END colour_block_helper.js */

/* START search_controller.js */
var SearchController = new Object()

SearchController.Methods = {
  run: function(id)
  {
    $('search_text').activate()
  }
}

Object.extend(SearchController, SearchController.Methods)

/* END search_controller.js */

/* START projects_controller.js */
var ProjectsController = new Object()

ProjectsController.Methods = {
  run: function(id)
  {
    var remote_form = new Azuki.Forms.Remote({
      controller_name: 'projects',
      item_name: 'project',
      add_close_button: false
    })

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.add.bindAsEventListener(remote_form))
  }
}

Object.extend(ProjectsController, ProjectsController.Methods)

/* END projects_controller.js */

/* START issues_controller.js */
var IssuesController = new Object()

IssuesController.Methods = {
  run: function(id)
  {
    this.add_technical_notes()

    IssuesController.issue_form_handling()
    IssuesController.message_form_handling()
    IssuesController.attachment_form_handling()

    if ($('SortViewControl'))
    {
      new Menu('SortViewControl', 'SortViewOptions', 'menu_sort')
      new Menu('OptionsViewControl', 'ViewOptions', 'menu_sort')
    }
  },

  issue_form_handling: function()
  {
    if (!$('AddIssueNav')) return

    var remote_form = new Azuki.Forms.Remote({form_id: 'IssueForm', controller_name: 'issues', item_name: 'issue', add_close_button: false, form_display_callback: IssuesController.form_callbacks})
    remote_form.options.new_url = $('AddIssueNav').up('form').action

    if ($('Messages'))
    {
      remote_form.options.form_display_callback = function()
      {
        Element.insert($(remote_form.options.form_id), '<input type="hidden" name="redirect_to_show" value="true" />')
        IssuesController.form_callbacks()
      }
    }

    Event.observe('AddIssueNav', 'click', remote_form.add.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
  },

  attachment_form_handling: function()
  {
    if (!$('NewAttachment')) return

    var remote_form = new Azuki.Forms.Remote({form_id: 'AttachmentForm', controller_name: 'attachments', item_name: 'attachment', add_close_button: false })
    remote_form.options.new_url = $('NewAttachment').href
    remote_form.options.enctype = true
    Event.observe('NewAttachment', 'click', remote_form.add.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
  },

  message_form_handling: function()
  {
    if (!$('NewMessage')) return

    var remote_form = new Azuki.Forms.Remote({form_id: 'MessageForm', controller_name: 'messages', item_name: 'message', add_close_button: false })
    remote_form.options.new_url = $('NewMessage').href
    Event.observe('NewMessage', 'click', remote_form.add.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
  },

  form_callbacks: function()
  {
    IssuesController.add_technical_notes()
  },

  add_technical_notes: function()
  {
    if ($('issue_technical') && $('issue_technical').hasClassName('new'))
    {
      $('issue_technical').value = BrowserCapabilities.analyse()
    }
  }
}

Object.extend(IssuesController, IssuesController.Methods)

/* END issues_controller.js */

/* START help_controller.js */
var HelpController = new Object()

HelpController.Methods = {
  run: function(id)
  {
    $('ToC').hide()

    Event.observe('ShowToC', 'click', function()
    {
      $('ToC').toggle()
    })
  }
}

Object.extend(HelpController, HelpController.Methods)
/* END help_controller.js */

/* START exceptions_controller.js */
var ExceptionsController = new Object()

ExceptionsController.Methods = {
  run: function()
  {
    ExceptionsController.exception_form_handling()

    if ($('SortViewControl'))
    {
      new Menu('SortViewControl', 'SortViewOptions', 'menu_sort')
      new Menu('OptionsViewControl', 'ViewOptions', 'menu_sort')
    }
  },

  exception_form_handling: function()
  {
    var remote_form = new Azuki.Forms.Remote({form_id: 'ExceptionForm', controller_name: 'exceptions', item_name: 'exception', add_close_button: false })

    if ($('AddExceptionNav'))
    {
      remote_form.options.new_url = $('AddExceptionNav').up('form').action
      Event.observe('AddExceptionNav', 'click', remote_form.add.bindAsEventListener(remote_form))
    }
    else
    {
      remote_form.options.form_display_callback = function()
      {
        Element.insert($(remote_form.options.form_id), '<input type="hidden" name="redirect_to_show" value="true" />')
      }
    }

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
  }
}

Object.extend(ExceptionsController, ExceptionsController.Methods)

/* END exceptions_controller.js */

/* START colour_block_editor_controller.js */
var ColourBlockEditorController = Class.create();
ColourBlockEditorController.prototype = {
  initialize: function(selector)
  {
    if (!selector) selector = '.colour_block_small'

    /* Add dynamic block editors to the small blocks */
    $$(selector).each(function(block)
    {
      if (User && User.type == 'Administrator') Event.observe(block, 'click', this.show_editor.bindAsEventListener(this))
    }.bind(this))

    /* Add the normal editors when they're visible */
    $$('div.colour_sliders').each(function(slider)
    {
      ColourBlockHelper.apply_colour_slider_to(slider, $('ColourValueField_' + slider.id.match(/(\d+)$/)[0]))
    })
  },

  show_editor: function(event)
  {
    element = Event.element(event)

    var colour = element.getStyle('backgroundColor').parseColor()
    var html = this.html()
    if ($('DynamicSliderContainer')) $('DynamicSliderContainer').remove()
    new Insertion.Top(document.body, html)
    WindowHelper.center('DynamicSliderContainer')
    Azuki.Windowing.Fader.fade()
    $('DynamicSliderContainer').show()

    $('DynamicSliderValue').value = colour
    $('ColourBlock_Dynamic').setStyle({ backgroundColor: colour})

    Event.observe('DynamicSliderContainer', 'submit', function(e) { Event.stop(e); return false })

    Event.observe('SaveDynamicColourSelection', 'click', function(e)
    {
      this.save(element)
      element.setStyle({backgroundColor: $('DynamicSliderValue').value})

      $('DynamicSliderContainer').remove()
      Azuki.Windowing.Fader.remove()

      Event.stop(e); return false
    }.bind(this))

    Event.observe('CancelDynamicColourSelection', 'click', function(e)
    {
      $('DynamicSliderContainer').remove()
      Azuki.Windowing.Fader.remove()

      Event.stop(e)
      return false
    }.bind(this))

    ColourBlockHelper.apply_colour_slider_to($('DynamicSlider'), $('DynamicSliderValue'))
  },

  html: function()
  {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format()
    var html = ''

    html += '<form class="floating_sliders standard" id="DynamicSliderContainer" style="display: none">'
    html += '    <h2>Change this item\'s colour</h2>'
    html += '    <div style="margin-left: 15px" class="colour_sliders" id="DynamicSlider">'
    html += '      Red<div class="slider" id="colour_dynamic_track1" style="width: 255px"><div class="handle" id="colour_dynamic_handle1"> </div></div> '
    html += '      Green<div class="slider" id="colour_dynamic_track2" style="width: 255px"><div class="handle" id="colour_dynamic_handle2"> </div></div>'
    html += '      Blue<div class="slider" id="colour_dynamic_track3" style="width: 255px; clear: right"><div class="handle" id="colour__dynamichandle3"> </div></div>'
    html += '    </div>'
    html += '  <div class="colour_block" id="ColourBlock_Dynamic"> </div>'
    html += '  <div class="action"><div class="buttons"><input type="text" name="slider_value" value="" id="DynamicSliderValue" style="display: none" /><input type="text" name="slider_value" value="" id="DynamicSliderValue" style="display: none" /><button id="SaveDynamicColourSelection" class="yes" id="submit" type="submit"><img alt="" src="/images/azuki/yes.gif"/> Save</button> <a id="CancelDynamicColourSelection" class="no" href="#"><img alt="" src="/images/azuki/no.gif"/> Cancel </a></div></div>'
    html += '</form>'

    return html
  },

  save: function(element)
  {
    if (!element.className.match(/_Colour_Block_/)) return

    var id   = element.className.match(/\d+$/)[0]
    var type = element.className.replace(/[^ ]* ([^_]*)_Colour_Block_\d+$/, '$1')
    var url  = '/' + type.toLowerCase() + '/' + id + '/save_colour'
    var colour_class = type + '_Colour_Block_' + id

    /* Reload page on reports (to get new graphs) */
    new Ajax.Request(url, {method: 'post', postBody: 'colour=' + $('DynamicSliderValue').value, onComplete: function() { if ($('Reports')) { window.location.reload() } }})

    /* Update any other colour blocks with this class */
    $$('.' + colour_class).each(function(colour_block)
    {
      colour_block.setStyle({backgroundColor: $('DynamicSliderValue').value})
    })
  }
}

/* END colour_block_editor_controller.js */

/* START clients_controller.js */
var ClientsController = new Object()

ClientsController.Methods = {
  run: function(id)
  {
    var remote_form = new Azuki.Forms.Remote({
      controller_name: 'clients',
      item_name: 'client',
      add_close_button: false
    })

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.add.bindAsEventListener(remote_form))
  }
}

Object.extend(ClientsController, ClientsController.Methods)

/* END clients_controller.js */

/* START application_controller.js */
var ApplicationController = new Object()

ApplicationController.Methods = {
  run: function(id)
  {
    ShowHideHelper.add_events()
    ShowHideHelper.project_list_show_hide()

    this.client_controls()
    this.project_controls()

    TableHelper.stripe('stripe')
    /* Add hover class to standard table rows */
    $$('table.standard tr').each(function(element) { element.addClassName('hover_highlight') })
    $$('table.issue_summary tr').each(function(element) { element.addClassName('hover_highlight') })

    /* Colours */
    new ColourBlockEditorController

    /* Hover helper */
    new HighlightHelper('hover_highlight')

    new Azuki.Windowing.ContextualHelp()

    /* Show welcome help keys */
    if ($('welcome'))
    {
      $$('.key').each(function(key) { key.show(); new Effect.Opacity(key, { from: 0.7, to: 0.7 }); key.setStyle('z-index: 1030') })
    }

    this.fade_elements('.resolved')

    /* In place state editing */
    new InPlaceSelect({class_name: 'status_issue', cancel_class_name: 'cancel_status_issue', select_class_name: 'status_issue_select', container_class_name: 'status_container', save_url: '/issues/update', url: '/issues/status_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0] }})
    new InPlaceSelect({class_name: 'status_exception', cancel_class_name: 'cancel_status_exception', select_class_name: 'status_exception_select', container_class_name: 'status_container', save_url: '/exceptions/update', url: '/exceptions/status_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0] }})

    new InPlaceSelect({class_name: 'assigned_to_issue', cancel_class_name: 'cancel_assigned_to_issue', select_class_name: 'assigned_to_issue_select', container_class_name: 'assigned_to_container', save_url: '/issues/update', url: '/issues/user_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0] }})

    this.colourize_severity()

    new ModelErrors('issue')
    new ModelErrors('user')
  },

  colourize_severity: function()
  {
    $$('.severity').each(function(element) {
      var severity = parseInt(element.innerHTML) || 0
      element.setStyle({ backgroundColor: make_rgb_col(make_col(severity, 100)) })
    })
  },

  fade_elements: function(class_name)
  {
    $$(class_name).each(function(element)
    {
      new Effect.Opacity(element, { from: 0.5, to: 0.5 })
    })
  },

  client_controls: function()
  {
    if (!$('AddClient')) return

    var remote_form = new Azuki.Forms.Remote({form_id: 'ClientForm', controller_name: 'clients', item_name: 'client', add_close_button: false})

    Event.observe('AddClient', 'click', remote_form.add.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form))
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form))
  },

  project_controls: function()
  {
    if (!$('AddProject')) return

    var remote_form = new Azuki.Forms.Remote({form_id: 'ProjectForm', controller_name: 'projects', item_name: 'project', add_close_button: false})

    Event.observe('AddProject', 'click', remote_form.add.bindAsEventListener(remote_form))
  }
}

Object.extend(ApplicationController, ApplicationController.Methods)

/* END application_controller.js */

/* START bug_tagger_legacy.js */
function make_col(col, max) {return Math.floor((col / ((max) / 1)) * 255)}
function make_rgb_col(col) { return 'rgb(' + col + ',' + (225 - col) + ',30)' }

/* END bug_tagger_legacy.js */

/* START azukilib.js */
var Azuki = {
  Version: '0.0.1',
  Forms: { },
  Helpers: { },
  Storage: { },
  Style: { },
  Windowing: { }
}

/* START popinfo.js */

Azuki.Windowing.PopInfo = {
  display: function(element, info, callback)
  {
    var delay = 2000
    var popup_element_id = element.id + '_popup'

    this.remove(popup_element_id)
    new Insertion.Before(element, '<div style="display: none" id="' + popup_element_id + '" class="popinfo_frame"><div class="popinfo_inner">' + info + '</div><div class="popinfo_image"></div></div>')

    if (callback) callback(element)

    new Effect.Appear(popup_element_id, { duration: 0.2 })

    setTimeout((function() { this.fade_popup(popup_element_id) }.bind(this)), delay)
  },

  fade_popup: function(popup_element_id)
  {
    try
    {
      new Effect.Fade(popup_element_id)
      setTimeout((function() { this.remove(popup_element_id) }).bind(this), 1000)
    }
    catch (exception)
    {
    }
  },

  remove: function(popup_element_id)
  {
    try
    {
      if ($(popup_element_id)) Element.remove(popup_element_id)
    }
    catch (exception)
    {

    }
  }
}
/* END popinfo.js */

/* START lightbox.js */
Azuki.Windowing.Lightbox = Class.create()
Azuki.Windowing.Lightbox.prototype = {
  initialize: function(class_name)
  {
    this.class_name = typeof class_name == 'undefined' ? 'lightbox' : class_name

    this.container_id = 'LightboxContainer'
    this.close_id = 'LightboxClose'
    this.remote_type = 'image'

    this.remove_event = this.remove.bindAsEventListener(this)
    Event.observe(document, 'click', this.events.bind(this))
  },

  events: function(e)
  {
    var element = Event.element(e)
    this.image = null
    this.link = null

    if (element.nodeName == 'A' && element.down('img') && element.down('img').hasClassName(this.class_name))
    {
      this.image = element.down('img')
      this.link = element
    }

    if (element.nodeName == 'IMG' && element.hasClassName(this.class_name))
    {
      this.link = element.up('a')
      this.image = element
    }

    if (this.link && this.image)
    {
      this.display(e)
    }
  },

  remove: function(e)
  {
    Event.stopObserving($(this.close_id), 'click', this.remove_event)
    $(this.container_id).remove()
    Azuki.Windowing.Fader.remove()
    Event.stop(e)
    return false
  },

  display: function(e)
  {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format()

    if (Azuki.Windowing.Busybox.active())
    {
      Event.stop(e)
      return false
    }

    if ($(this.container_id)) $(this.container_id).remove()
    Azuki.Windowing.Busybox.busy('loading')
    new Insertion.Top(document.body, '<div id="' + this.container_id + '" class="popinfo_container" style="display: none"><div id="' + this.close_id + '" style="position: absolute; left: -15px; top: -15px; cursor: pointer"><img width="36" height="36" border="0" src="/images/azuki/close.' + image_format + '"/></div></div>')

    Event.observe($(this.close_id), 'click', this.remove_event)

    switch(this.remote_type)
    {
      case 'image':
        var image = document.createElement('img')

        image.onload = function()
        {
          $(this.container_id).appendChild(image)

          Azuki.Windowing.Busybox.done()
          Azuki.Helpers.Window.center(this.container_id)
          Azuki.Windowing.Fader.fade()
          new Effect.Appear(this.container_id, {duration: 0.3})

          return false
        }.bind(this)

        image.src = this.link.href
      break

      case 'html':
        new Ajax.Updater(this.container_id, this.link.href, { method: 'get', evalScripts: true, onComplete: function()
        {
          Azuki.Windowing.Busybox.done()
          Azuki.Windowing.Fader.fade()
          Azuki.Helpers.Window.center($(this.container_id))

          $(this.container_id).show()
        }.bind(this)})
      break
    }

    if (e) Event.stop(e)
    return false
  }
}

/* END lightbox.js */

/* START fader.js */
Azuki.Windowing.Fader = {
  active: function()
  {
    return $('Fader') ? true : false
  },

  set_height: function()
  {
    $('Fader').setStyle({height: Azuki.Helpers.Window.page_size().height + 'px'})
  },

  fade: function()
  {
    new Insertion.Top(document.body, '<div id="Fader" style="display: none; position: absolute; z-index: 120; width: 100%; height: 100%; top: 0; left: 0; background-color: #000000"></div>')
    Position.prepare()
    Azuki.Windowing.Fader.set_height()
    $('Fader').setOpacity(0)
    $('Fader').show(0)
    Azuki.Windowing.Fader.alter_selects('hidden')
    Azuki.Windowing.Fader.alter_overflows('hidden')
    new Effect.Opacity('Fader', {duration: 0, from: 0.7, to: 0.7})
  },

  alter_selects: function(visible, selector)
  {
    if (!(/MSIE/.test(navigator.userAgent) && !window.opera)) return
    if (!selector) selector = 'select'

    $$(selector).each(function(element)
    {
      element.setStyle({ visibility: visible })
    })
  },

  alter_overflows: function(overflow_setting)
  {
    $$('.overflow').each(function(element)
    {
      element.setStyle({ overflow: overflow_setting })
    })
  },

  remove: function()
  {
    if (!$('Fader')) return

    new Effect.Opacity('Fader', {duration: 0.2, from: 0.7, to: 0.0, afterFinish: function()
    {
      $('Fader').remove()
      Azuki.Windowing.Fader.alter_selects('visible')
      Azuki.Windowing.Fader.alter_overflows('auto')
    }})
  }
}

Event.observe(window, 'resize', function()
{
  if (!$('Fader')) return

  Azuki.Windowing.Fader.set_height()
})

/* END fader.js */

/* START contextual_help.js */
Azuki.Windowing.ContextualHelp = Class.create()
Azuki.Windowing.ContextualHelp.prototype = {
  initialize: function(help_class)
  {
    this.help_class = help_class ? help_class : 'help'

    Event.observe(document, 'click', function(e)
    {
      var element = $(Event.element(e))
      if (!element.hasClassName(this.help_class)) return
      if (element.nodeName != 'A') return

      this.display_help(element.href)

      Event.stop(e)
      return false
    }.bind(this))
  },

  display_help: function(url)
  {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format()
    var faded = Azuki.Windowing.Fader.active()

    if (Azuki.Windowing.Busybox.active()) return

    if ($('HelpContainer')) $('HelpContainer').remove()

    Azuki.Windowing.Busybox.busy('loading')
    new Insertion.Top(document.body, '<div id="HelpContainer" class="popinfo_container" style="display: none"><div id="HelpClose" style="position: absolute; left: -15px; top: -15px; cursor: pointer"><img width="36" height="36" border="0" src="/images/azuki/close.' + image_format + '"/></div><div id="HelpContent"></div></div>')

    Event.observe($('HelpClose'), 'click', function() { $('HelpContainer').remove(); if (!faded) { Azuki.Windowing.Fader.remove() } })

    new Ajax.Updater('HelpContent', url, { insertion: Insertion.Bottom, onComplete: function()
    {
      Azuki.Windowing.Busybox.done()
      Azuki.Helpers.Window.center('HelpContainer')
      if (!faded) Azuki.Windowing.Fader.fade()
      new Effect.Appear($('HelpContainer'), {duration: 0.3})
    }})
  }
}
/* END contextual_help.js */

/* START busybox.js */
Azuki.Windowing.Busybox = {
  /* operation can be 'loading', 'saving', etc. depending on the images you've got. */
  busy: function(operation)
  {
    this.remove()
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format()

    new Insertion.Top(document.body, '<div id="Busybox" style="display: none"><img width="138" height="81" src="/images/azuki/' + operation + '.' + image_format + '" /></div>')
    Azuki.Helpers.Window.center('Busybox')
    $('Busybox').show()
  },

  remove: function()
  {
    if ($('Busybox')) $('Busybox').remove()
  },

  done: function()
  {
    new Effect.Fade($('Busybox'), { afterFinish: function() { Azuki.Windowing.Busybox.remove() }})
  },

  active: function()
  {
    return $('Busybox') ? true : false
  }
}

/* END busybox.js */

/* START table_ruler.js */
/* Not implemented yet */
/* END table_ruler.js */

/* START color.js */
Azuki.Style.Color = {}
Azuki.Style.Color.RGB = Class.create()
Azuki.Style.Color.RGB.prototype = {
  initialize: function(value)
  {
    this.colors = Array(0, 0, 0)

    switch (typeof(value))
    {
      case 'string':
        this.set_from_rgb_string(value)
      break

      case 'object':
        this.colors = value
      break
    }
  },

  red: function() { return this.colors[0] },
  green: function() { return this.colors[1] },
  blue: function() { return this.colors[2] },

  set_red: function(red) { this.colors[0] = red },
  set_green: function(green) { this.colors[1] = green },
  set_blue: function(blue) { this.colors[2] = blue },

  /* Assumes rgb(1, 2, 3) */
  set_from_rgb_string: function(value)
  {
    this.colors = $A(value.replace(/rgb\(/, '').replace(/\)/, '').split(',')).collect(function(value)
    {
      return parseInt(value)
    })
  },

  to_s: function()
  {
    return 'rgb(' + this.red() + ',' + this.green() + ',' + this.blue() + ')'
  },

  to_hex: function()
  {
    var hex = ''

    $A(this.colors).each(function(colour)
    {
      var value = this._hex_value(colour)

      if (value.length == 1) { value = '0' + value }

      hex = hex + value
    }.bind(this))

    return hex
  },

  _hex_value: function(d)
  {
    var hex_map = '0123456789ABCDEF'
    var h = hex_map.substr(d&15, 1)

    while (d > 15) { d >>= 4; h = hex_map.substr(d&15, 1) + h }
    return h
  }
}

Azuki.Style.Color.Hex = Class.create()
Azuki.Style.Color.Hex.prototype = {
  /* Create with values like this: '#000000' */
  initialize: function(value)
  {
    this.value = value
  },

  to_rgb: function()
  {
    this._set_rgb_values()
    var rgb_array = $A([this.red, this.green, this.blue]).collect(function(color)
    {
      return this._rgb_value(color)
    }.bind(this))

    return new Azuki.Style.Color.RGB(rgb_array)
  },

  _rgb_value: function(hex)
  {
    return parseInt(hex, 16) || 0
  },

  _set_rgb_values: function()
  {
    this.red   = this.value.charAt(1) + this.value.charAt(2)
    this.green = this.value.charAt(3) + this.value.charAt(4)
    this.blue  = this.value.charAt(5) + this.value.charAt(6)
  }
}

Azuki.Style.Color.Methods = {
  invert: function(value)
  {
    var color = new Azuki.Style.Color.RGB(value)
    color.set_red(255 - parseInt(color.red()))
    color.set_green(255 - parseInt(color.green()))
    color.set_blue(255 - parseInt(color.blue()))
    return color.to_s()
  },

  random: function()
  {
    var color = new Azuki.Style.Color.RGB(Array(Math.round((Math.random() * 255)), Math.round((Math.random() * 255)), Math.round((Math.random() * 255))))
    return color.to_s()
  }
}

Azuki.Style.Color.ElementMethods = {
  invertColor: function(element, property)
  {
    try
    {
      element.style[property] = Azuki.Style.Color.invert(element.getStyle(property))
      return true
    }
    catch (exception)
    {
      return false
    }
  },

  randomColor: function(element, property)
  {
    try
    {
      element.style[property] = Azuki.Style.Color.random()
      return true
    }
    catch (exception)
    {
      return false
    }
  }
}


Object.extend(Azuki.Style.Color, Azuki.Style.Color.Methods)
Element.addMethods(Azuki.Style.Color.ElementMethods)
/* END color.js */

/* START cookie.js */
Azuki.Storage.Cookie = {
  create: function(name, value, days, path)
  {
    var expires = ''

    path = typeof path == 'undefined' ? '/' : path

    if (days)
    {
      var date = new Date()
      date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000))
      expires = "; expires=" + date.toGMTString()
    }

    if (name && value)
    {
      document.cookie = name + '=' + escape(value) + expires + '; path=' + path
    }
  },

  find: function(name)
  {
    var matches = document.cookie.match(name + '=([^;]*)')

    if (matches && matches.length == 2)
    {
      return unescape(matches[1])
    }
  },

  destroy: function(name)
  {
    this.create(name, ' ', -1)
  }
}
/* END cookie.js */

/* START window_helper.js */
Azuki.Helpers.Window = {
  size: function()
  {
    var width, height

    if (self.innerHeight)
    {
      width  = self.innerWidth
      height = self.innerHeight
    }
    else if (document.documentElement && document.documentElement.clientHeight)
    {
      width  = document.documentElement.clientWidth
      height = document.documentElement.clientHeight
    }
    else if (document.body)
    {
      width  = document.body.clientWidth
      height = document.body.clientHeight
    }

    return {width: width, height: height}
  },

  page_size: function()
  {
    var x_scroll, y_scroll
    var width, height
    var window_size = Azuki.Helpers.Window.size()

    if (window.innerHeight && window.scrollMaxY)
    {
      x_scroll = document.body.scrollWidth
      y_scroll = window.innerHeight + window.scrollMaxY
    }
    else if (document.body.scrollHeight > document.body.offsetHeight)
    {
      x_scroll = document.body.scrollWidth
      y_scroll = document.body.scrollHeight
    }
    else
    {
      x_scroll = document.body.offsetWidth
      y_scroll = document.body.offsetHeight
    }

    width  = x_scroll < window_size.width  ? window_size.width  : x_scroll
    height = y_scroll < window_size.height ? window_size.height : y_scroll

    return {width: width, height: height}
  },

  /* Centres absolute positions elements */
  center: function(element)
  {
    var options = Object.extend({update: false}, arguments[1] || {})
    element = $(element)

    Position.prepare()

    var offset_x = (Position.deltaX + Math.floor((Azuki.Helpers.Window.size().width - element.getDimensions().width) / 2))   || '0'
    var offset_y = (Position.deltaY + Math.floor((Azuki.Helpers.Window.size().height - element.getDimensions().height) / 2)) || '0'

    element.setStyle({ left: offset_x + 'px' })
    element.setStyle({ top:  offset_y + 'px' })

    if (options.update)
    {
      Event.observe(window, 'resize', function() { Position.center(element) })
      Event.observe(window, 'scroll', function() { Position.center(element) })
    }
  },

  center_with_margin: function(element)
  {
    var element = $(element)
    var container = element.up()
    var margin = (container.getWidth() - element.getWidth()) / 2
    element.setStyle({ marginLeft: margin + 'px', marginRight: margin + 'px'})
  }
}

/* END window_helper.js */

/* START keyboard_helper.js */
Azuki.Helpers.Keyboard = {
  which_meta_key: function()
  {
    var key = ''

    if (navigator.platform.match(/win/i))
    {
      key = 'alt'
    }
    else if (navigator.platform.match(/mac/i))
    {
      key = 'ctrl'
    }
    else
    {
      key = 'ctrl or alt'
    }

    return key
  },

  underline_accesskey: function(element)
  {
    var element = $(element)
    var key = this.which_meta_key()
    var regex = new RegExp(element.accessKey, 'i')
    var match = ''

    if (element.accessKey.length == 0 || element.className.indexOf('noaccesskey') > 0) return

    if (element.tagName == 'A' && !element.innerHTML.match(/class=.?accesskey/))
    {
      match = element.innerHTML.match(regex)
      element.innerHTML = element.innerHTML.replace(regex, '<span class="accesskey" title="Press ' + key + '-' + String(match).toLowerCase() + ' to access this link using the keyboard">' + match + '</span>')
    }
    else if (element.tagName == 'INPUT')
    {
      element.value = element.value + ' [' + key + '+' + String(element.accessKey).toLowerCase() + ']'
    }
    else if (element.tagName == 'BUTTON')
    {
      var text = ''

      /* Remove text nodes from the button, this assumes the button has a format like: image text */
      $A(element.childNodes).each(function(child)
      {
        if (child.nodeName == '#text')
        {
          text = text + child.data
          element.removeChild(child)
        }
      })

      match = text.match(regex)
      new Insertion.Bottom(element, text.replace(regex, '<span class="accesskey" title="Press ' + key + '-' + String(match).toLowerCase() + ' to access this link using the keyboard">' + match + '</span>'))
    }
  },

  underline_accesskeys: function()
  {
    this.underline_tag_accesskeys('a')
    this.underline_tag_accesskeys('button')
    this.underline_tag_accesskeys('input')
  },

  underline_tag_accesskeys: function(tag_name)
  {
    var key = this.which_meta_key()
    $A(document.getElementsByTagName(tag_name)).each(function(element)
    {
      this.underline_accesskey(element)
    }.bind(this))
  }
}

/* END keyboard_helper.js */

/* START forms_helper.js */
Azuki.Helpers.Forms = {
  /* Text helpers */
  set_caret_position: function(element, pos)
  {
    if (element.setSelectionRange)
    {
      element.focus()
      element.setSelectionRange(pos, pos)
    }
    else if (element.createTextRange)
    {
      var range = element.createTextRange()

      range.collapse(true)
      range.moveEnd('character', pos)
      range.moveStart('character', pos)
      range.select()
    }
  },

  get_caret_position: function(element)
  {
    if (element.setSelectionRange)
    {
      return element.selectionStart
    }
    else if (element.createTextRange)
    {
      var range = document.selection.createRange()
      var stored_range = range.duplicate()
      stored_range.moveToElementText(element)
      stored_range.setEndPoint('EndToEnd', range)

      return stored_range.text.length - range.text.length
    }
  },

  activate_controls: function(names)
  {
    $A(document.getElementsByTagName('input')).each(function(element)
    {
      $A(names).each(function(name)
      {
        if (element.name == name)
        {
          element.disabled = false
        }
      })
    })
  },

  disable_on_submit: function()
  {
    $$('form').each(function(form)
    {
      var submit = $A(form.getElementsByTagName('input')).find(function(input) { return input.type == 'submit' } )

      if (!submit) return

      Event.observe(form, 'submit', function(e)
      {
        submit = $(submit)
        if (submit && !submit.hasClassName('nodisable')) submit.disable()
      })
    })
  }
}

/* END forms_helper.js */

/* START compatibility_helper.js */
Azuki.Helpers.Compatibility = {
  /* Rather than hacking IE's png transparency, we currently use this to switch between gif and png. */
  suitable_image_format: function()
  {
    if (!navigator.appVersion.match(/MSIE/)) return 'png'

    try
    {
      var version = parseFloat(navigator.appVersion.split('MSIE')[1])
      return (version < 7.0) ? 'gif' : 'png'
    }
    catch (exception)
    {
      return 'png'
    }
  }
}

/* END compatibility_helper.js */

/* START textarea_extensions.js */
Azuki.Forms.TextAreaExtensions = Class.create()
Azuki.Forms.TextAreaExtensions.prototype = {
  initialize: function()
  {
    this._add_images()

    this.bigger = document.getElementsByClassName('bigger')
    this.smaller = document.getElementsByClassName('smaller')

    this.bigger.each(function(item)
    {
      Event.observe(item, 'click', this.increase_rows.bindAsEventListener(this))
    }.bind(this))

    this.smaller.each(function(item)
    {
      Event.observe(item, 'click', this.decrease_rows.bindAsEventListener(this))
    }.bind(this))
  },

  increase_rows: function(e)
  {
    var element = $(Event.element(e))
    var textarea = this._get_next_textarea(element)
    textarea.rows += 5
  },

  decrease_rows: function(e)
  {
    var element = $(Event.element(e))
    var textarea = this._get_next_textarea(element)

    if (textarea.rows >= 5)
    {
      textarea.rows -= 4
    }
  },

  _get_next_textarea: function(element)
  {
    var children = $A(element.parentNode.parentNode.childNodes)

    return children.find(function(child) { return child.nodeName == 'TEXTAREA' })
  },

  _add_images: function()
  {
    $$('textarea').each(function(textarea)
    {
      new Insertion.Before(textarea, '<span class="resizer"><img class="bigger" alt="Increase the size of this text box" src="/images/azuki/open.png"/><img class="smaller" alt="Decrease the size of this text box" src="/images/azuki/close_small.png"/></span><br/>')
    })
  }
}

/* END textarea_extensions.js */

/* START select_search.js */
Azuki.Forms.SelectSearch = Class.create()
Azuki.Forms.SelectSearch.prototype = {
  initialize: function(search_input, search_results)
  {
    this.search_input = $(search_input)
    this.search_results = $(search_results)
    this.items = this.read_values()

    new Event.observe(this.search_input, 'click', this.clear_search_field.bindAsEventListener(this))
    new Event.observe(this.search_input, 'keydown', this.search.bindAsEventListener(this))
  },

  clear_search_field: function()
  {
    this.search_input.value = ''
    this.items.each(function(option, i)
    {
      this.search_results.options[i] = new Option(option.text, option.value)
    }.bind(this))
  },

  read_values: function()
  {
    return $A(this.search_results.options).collect(function(option)
    {
      return {value: option.value, text: option.innerHTML}
    })
  },

  search: function()
  {
    var query = this.search_input.value
    var results = this.items.findAll(function(value)
    {
      return value.text.toLowerCase().match(query.toLowerCase())
    })

    this.search_results.options.length = 0
    results.each(function(option, i)
    {
      this.search_results.options[i] = new Option(option.text, option.value)
    }.bind(this))
  }
}

/* END select_search.js */

/* START remote.js */

Azuki.Forms.Remote = Class.create()
Azuki.Forms.Remote.prototype = {
  initialize: function(options)
  {
    this.options = {
      form_id:                'RemoteForm',
      controller_name:        '',
      item_name:              '',
      method:                 'post',
      enctype:                null,
      ajax:                   false,
      add_close_button:       true,
      form_visible:           false,
      form_display_callback:  false,
      add_completed_callback: null
    }
    Object.extend(this.options, options || { })

    this.options.edit_url    = '/' + this.options.controller_name + '/edit/'
    this.options.new_url     = '/' + this.options.controller_name + '/new'
    this.options.create_url  = '/' + this.options.controller_name + '/create'
    this.options.update_url  = '/' + this.options.controller_name + '/update/'
    this.options.destroy_url = '/' + this.options.controller_name + '/destroy/'
  },

  edit: function(e)
  {
    var element = Event.element(e)

    if (element.nodeName == 'IMG')
    {
      element = element.up('.edit_' + this.options.item_name)
    }

    if (!element) return

    if ((element.nodeName == 'A' || element.nodeName == 'BUTTON') && element.hasClassName('edit_' + this.options.item_name))
    {
      var item_id = element.id.match(/\d+$/)

      this.show_form(this.options.form_id, this.options.edit_url + item_id, this.options.update_url + item_id, this.options.form_display_callback)
      Event.stop(e)
      return false
    }
  },

  add: function(e)
  {
    var element = Event.element(e)

    if (element.nodeName == 'IMG')
    {
      element = element.up('.add_' + this.options.item_name)
    }

    if (!element) return

    if ((element.nodeName == 'A' || element.nodeName == 'BUTTON') && element.hasClassName('add_' + this.options.item_name))
    {
      if (this.options.add_callback) this.options.add_callback()
      this.show_form(this.options.form_id, this.options.new_url, this.options.create_url, this.options.form_display_callback)
      Event.stop(e)
      return false
    }
  },

  destroy: function(e)
  {
    var element = Event.element(e)
    if ((element.nodeName == 'A' || element.nodeName == 'IMG') && element.hasClassName('destroy_' + this.options.item_name))
    {
      var item_id = element.id.match(/\d+$/)

      if (confirm('Are you sure you want to delete that item?'))
      {
        window.location = this.options.destroy_url + item_id
      }

      Event.stop(e)
      return false
    }
  },

  show_form: function(id, url, save_url, callback)
  {
    if (this.options.form_visible)
    {
      return
    }
    else
    {
      this.options.form_visible = true
    }

    Azuki.Windowing.Busybox.busy('loading')

    function close_form()
    {
      if ($(id))
      {
        $(id).remove()
        Azuki.Windowing.Fader.remove()
      }
    }

    function focus_field()
    {
      try
      {
        if ($(id)) $(id).focusFirstElement()
      }
      catch (exception)
      {

      }
    }

    var fields_id = id + 'FormFields'
    var cancel_id = 'Cancel' + id
    var editor_html = ''
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format()
    var enctype = typeof this.options.enctype == 'undefined' ? '' : 'enctype="multipart/form-data"'

    close_form()

    editor_html += '<form style="display: none"' + this.ajax_form_html(save_url, id) + ' method="' + this.options.method + '" ' + enctype + ' action="' + save_url + '" class="edit standard" id="' + id + '">'
    if (this.options.add_close_button) editor_html += '  <div id="' + cancel_id + '" style="position: absolute; left: -15px; top: -25px; cursor: pointer"><img alt="Cancel without saving" style="cursor: pointer" width="36" height="36" border="0" src="/images/close.' + image_format + '"/></div>'
    editor_html += '  <div id="' + fields_id + '"></div>'
    editor_html += '</form>'

    new Insertion.Top(document.body, editor_html)

    new Ajax.Updater($(fields_id), url, {
      evalScripts: true,
      method: 'get',
      onComplete: function()
      {
        Azuki.Helpers.Window.center(id)
        new Effect.Appear($(id), { duration: 0.3, afterFinish: function() { Azuki.Windowing.Fader.alter_selects('visible'); focus_field() } })
        Azuki.Windowing.Fader.fade()
        Azuki.Windowing.Busybox.done()

        if (this.options.ajax)
        {
          try
          {
            Event.observe(id, 'submit', this.ajax_submit.bindAsEventListener(this))
          }
          catch(e)
          {
            console.log(e)
          }
        }

        Event.observe(cancel_id, 'click', function(e) { close_form(id); this.options.form_visible = false; Event.stop(e); return false }.bind(this))

        if (callback) callback()
      }.bind(this)
    })
  },

  ajax_form_html: function()
  {
    if (this.options.ajax == false) return ''

    return ' onsubmit="return false" '
  },

  ajax_submit: function()
  {
    this.options.form_visible = false
    new Ajax.Request(this.options.create_url, { onSuccess: this.options.ajax_on_succes, postBody: Form.serialize(this.options.form_id), onFailure: this.options.ajax_on_failure })
    $(this.options.form_id).remove()
    Azuki.Windowing.Fader.remove()
    return false
  }
}
/* END remote.js */

/* START controller.js */
Azuki.Controller = {
  run: function()
  {
    if (document.body.id) Azuki.Controller.run_controller(document.body.id)
    Azuki.Controller.run_controller('Application')
  },

  run_controller: function(id)
  {
    var controller_class = id + 'Controller'

    if (!window[controller_class]) return

    if (eval(controller_class + '.run'))
    {
      eval(controller_class + '.run()')
    }
    else
    {
      controller = new window[controller_class]
    }
  }
}

function init()
{
  if (arguments.callee.done) return

  arguments.callee.done = true

  if (_timer) clearInterval(_timer)

  Azuki.Controller.run()
}

/* for Mozilla/Opera9 */
if (document.addEventListener)
{
  document.addEventListener("DOMContentLoaded", init, false)
}

/* for Internet Explorer */
/*@cc_on @*/
/*@if (@_win32)
  document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>")
  var script = document.getElementById("__ie_onload")

  script.onreadystatechange = function()
  {
    if (this.readyState == "complete")
    {
      init() // call the onload handler
    }
  }
/*@end @*/

/* for Safari */
if (/WebKit/i.test(navigator.userAgent))
{
  var _timer = setInterval(function()
  {
    if (/loaded|complete/.test(document.readyState))
    {
      init() // call the onload handler
    }
  }, 10)
}

/* for other browsers */
window.onload = init


/* END controller.js */

/* END azukilib.js */

if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }

    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },

  findDeepestChild: function(drops) {
    deepest = drops[0];

    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];

    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode;
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },

  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect(
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];

    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });

    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event);
        return true;
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
}

var Draggables = {
  drags: [],
  observers: [],

  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);

      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },

  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },

  activate: function(draggable) {
    if(draggable.options.delay) {
      this._timeout = setTimeout(function() {
        Draggables._timeout = null;
        window.focus();
        Draggables.activeDraggable = draggable;
      }.bind(this), draggable.options.delay);
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },

  deactivate: function() {
    this.activeDraggable = null;
  },

  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;

    this.activeDraggable.updateDrag(event, pointer);
  },

  endDrag: function(event) {
    if(this._timeout) {
      clearTimeout(this._timeout);
      this._timeout = null;
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },

  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },

  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },

  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },

  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },

  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
}

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){
            Draggable._dragging[element] = false
          }
        });
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };

    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
        }
      });

    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);

    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);

    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;

    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE

    this.options  = options;
    this.dragging = false;

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);

    Draggables.register(this);
  },

  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },

  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },

  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;

      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = Position.cumulativeOffset(this.element);
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

      Draggables.activate(this);
      Event.stop(event);
    }
  },

  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();

    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }

    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this.element._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this.element._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }

    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }

    Draggables.notify('onStart', this, event);

    if(this.options.starteffect) this.options.starteffect(this.element);
  },

  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);

    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }

    Draggables.notify('onDrag', this, event);

    this.draw(pointer);
    if(this.options.change) this.options.change(this);

    if(this.options.scroll) {
      this.stopScrolling();

      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }

    if(Prototype.Browser.WebKit) window.scrollBy(0,0);

    Event.stop(event);
  },

  finishDrag: function(event, success) {
    this.dragging = false;

    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this.element._originallyAbsolute)
        Position.relativize(this.element);
      delete this.element._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false;
    if(success) {
      dropped = Droppables.fire(event, this.element);
      if (!dropped) dropped = false;
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);

    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect)
      this.options.endeffect(this.element);

    Draggables.deactivate(this);
    Droppables.reset();
  },

  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },

  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },

  draw: function(point) {
    var pos = Position.cumulativeOffset(this.element);
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }

    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];

    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }

    var p = [0,1].map(function(i){
      return (point[i]-pos[i]-this.offset[i])
    }.bind(this));

    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this))
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this))
      }
    }}

    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";

    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },

  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },

  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },

  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }

    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }

    if(this.options.change) this.options.change(this);
  },

  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },

  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },

  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

  sortables: { },

  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },

  destroy: function(element){
    var s = Sortable.options(element);

    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');

      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false,
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,

      elements:    false,
      handles:     false,

      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    this.destroy(element);

    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    }

    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    }

    Element.cleanWhitespace(element);

    options.draggables = [];
    options.droppables = [];

    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e);
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);
    });

    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    this.sortables[element.id] = options;

    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },

  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },

  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);

    if(!Element.isParent(dropon, element)) {
      var index;

      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;

      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }

      dropon.insertBefore(element, child);

      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return;

    if(!Sortable._marker) {
      Sortable._marker =
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }
    var offsets = Position.cumulativeOffset(dropon);
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

    if(position=='after')
      if(sortable.overlap == 'horizontal')
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

    Sortable._marker.show();
  },

  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];

    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;

      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      }

      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child)

      parent.children.push (child);
    }

    return parent;
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });

    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    }

    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });

    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });

    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });

    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },

  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" +
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
}

Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
}

Element.findChildren = function(element, only, recursive, tagName) {
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
}

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
}
var Azuki = {
  Version: '0.0.1',
  Forms: { },
  Helpers: { },
  Storage: { },
  Style: { },
  Windowing: { }
};


/* START popinfo.js */

Azuki.Windowing.PopInfo = {
  display: function(element, info, callback) {
    var delay = 2000;
    var popup_element_id = element.id + '_popup';

    this.remove(popup_element_id);
    new Insertion.Before(element, '<div style="display: none" id="' + popup_element_id + '" class="popinfo_frame"><div class="popinfo_inner">' + info + '</div><div class="popinfo_image"></div></div>');

    if (callback) callback(element);

    new Effect.Appear(popup_element_id, { duration: 0.2 });
    setTimeout((function() { this.fade_popup(popup_element_id); }.bind(this)), delay);
  },

  fade_popup: function(popup_element_id) {
    try {
      new Effect.Fade(popup_element_id);
      setTimeout((function() { this.remove(popup_element_id); }).bind(this), 1000);
    }
    catch (exception) {
    }
  },

  remove: function(popup_element_id) {
    try {
      if ($(popup_element_id)) Element.remove(popup_element_id);
    }
    catch (exception) {

    }
  }
};

/* END popinfo.js */

/* START lightbox.js */
Azuki.Windowing.Lightbox = Class.create();
Azuki.Windowing.Lightbox.prototype = {
  initialize: function(class_name) {
    this.class_name = typeof class_name == 'undefined' ? 'lightbox' : class_name;

    this.container_id = 'LightboxContainer';
    this.close_id = 'LightboxClose';
    this.remote_type = 'image';

    this.remove_event = this.remove.bindAsEventListener(this);
    Event.observe(document, 'click', this.events.bind(this));
  },

  events: function(e) {
    var element = Event.element(e);
    this.image = null;
    this.link = null;

    if (element.nodeName == 'A' && element.down('img') && element.down('img').hasClassName(this.class_name)) {
      this.image = element.down('img');
      this.link = element;
    }

    if (element.nodeName == 'IMG' && element.hasClassName(this.class_name)) {
      this.link = element.up('a');
      this.image = element;
    }

    if (this.link && this.image) {
      this.display(e);
    }
  },

  remove: function(e) {
    Event.stopObserving($(this.close_id), 'click', this.remove_event);
    $(this.container_id).remove();
    Azuki.Windowing.Fader.remove();
    Event.stop(e);
    return false;
  },

  display: function(e) {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format();

    if (Azuki.Windowing.Busybox.active()) {
      Event.stop(e);
      return false;
    }

    if ($(this.container_id)) $(this.container_id).remove();
    Azuki.Windowing.Busybox.busy('loading');
    new Insertion.Top(document.body, '<div id="' + this.container_id + '" class="popinfo_container" style="display: none"><div id="' + this.close_id + '" style="position: absolute; left: -15px; top: -15px; cursor: pointer"><img width="36" height="36" border="0" src="/images/azuki/close.' + image_format + '"/></div></div>');

    Event.observe($(this.close_id), 'click', this.remove_event);

    switch(this.remote_type) {
      case 'image':
        var image = document.createElement('img');

        image.onload = function() {
          $(this.container_id).appendChild(image);

          Azuki.Windowing.Busybox.done();
          Azuki.Helpers.Window.center(this.container_id);
          Azuki.Windowing.Fader.fade();
          new Effect.Appear(this.container_id, {duration: 0.3});

          return false;
        }.bind(this);

        image.src = this.link.href;
      break;

      case 'html':
        new Ajax.Updater(this.container_id, this.link.href, { method: 'get', evalScripts: true, onComplete: function() {
          Azuki.Windowing.Busybox.done();
          Azuki.Windowing.Fader.fade();
          Azuki.Helpers.Window.center($(this.container_id));

          $(this.container_id).show();
        }.bind(this)});
      break;

      default:
      break;
    }

    if (e) Event.stop(e);
    return false;
  }
};

/* END lightbox.js */

/* START fader.js */
Azuki.Windowing.Fader = {
  active: function() {
    return $('Fader') ? true : false;
  },

  set_height: function() {
    $('Fader').setStyle({height: Azuki.Helpers.Window.page_size().height + 'px'});
  },

  fade: function() {
    new Insertion.Top(document.body, '<div id="Fader" style="display: none; position: absolute; z-index: 120; width: 100%; height: 100%; top: 0; left: 0; background-color: #000000"></div>');
    Position.prepare();
    Azuki.Windowing.Fader.set_height();
    $('Fader').setOpacity(0);
    $('Fader').show(0);
    Azuki.Windowing.Fader.alter_selects('hidden');
    Azuki.Windowing.Fader.alter_overflows('hidden');
    new Effect.Opacity('Fader', {duration: 0, from: 0.7, to: 0.7});
  },

  alter_selects: function(visible, selector) {
    if (!(/MSIE/.test(navigator.userAgent) && !window.opera)) return;
    if (!selector) selector = 'select';

    $$(selector).each(function(element) {
      element.setStyle({ visibility: visible });
    });
  },

  alter_overflows: function(overflow_setting) {
    $$('.overflow').each(function(element) {
      element.setStyle({ overflow: overflow_setting });
    });
  },

  remove: function()
  {
    if (!$('Fader')) return;

    new Effect.Opacity('Fader', {duration: 0.2, from: 0.7, to: 0.0, afterFinish: function() {
      if ($('Fader')) $('Fader').remove();
      Azuki.Windowing.Fader.alter_selects('visible');
      Azuki.Windowing.Fader.alter_overflows('auto');
    }});
  }
};

Event.observe(window, 'resize', function() {
  if (!$('Fader')) return;
  Azuki.Windowing.Fader.set_height();
});

/* END fader.js */

/* START contextual_help.js */
Azuki.Windowing.ContextualHelp = Class.create();
Azuki.Windowing.ContextualHelp.prototype = {
  initialize: function(help_class) {
    this.help_class = help_class ? help_class : 'help';

    Event.observe(document, 'click', function(e) {
      var element = $(Event.element(e));
      if (!element.hasClassName(this.help_class)) return true;
      if (element.nodeName != 'A') return true;

      this.display_help(element.href);

      Event.stop(e);
      return false;
    }.bind(this));
  },

  display_help: function(url) {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format();
    var faded = Azuki.Windowing.Fader.active();

    if (Azuki.Windowing.Busybox.active()) return;
    if ($('HelpContainer')) $('HelpContainer').remove();

    Azuki.Windowing.Busybox.busy('loading');
    new Insertion.Top(document.body, '<div id="HelpContainer" class="popinfo_container" style="display: none"><div id="HelpClose" style="position: absolute; left: -15px; top: -15px; cursor: pointer"><img width="36" height="36" border="0" src="/images/azuki/close.' + image_format + '"/></div><div id="HelpContent"></div></div>');

    Event.observe($('HelpClose'), 'click', function() { $('HelpContainer').remove(); if (!faded) { Azuki.Windowing.Fader.remove(); } });

    new Ajax.Updater('HelpContent', url, { insertion: Insertion.Bottom, onComplete: function() {
      Azuki.Windowing.Busybox.done();
      Azuki.Helpers.Window.center('HelpContainer');
      if (!faded) Azuki.Windowing.Fader.fade();
      new Effect.Appear($('HelpContainer'), {duration: 0.3});
    }});
  }
};

/* END contextual_help.js */

/* START busybox.js */
Azuki.Windowing.Busybox = {
  /* operation can be 'loading', 'saving', etc. depending on the images you've got. */
  busy: function(operation) {
    this.remove();
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format();

    new Insertion.Top(document.body, '<div id="Busybox" style="display: none"><img width="138" height="81" src="/images/azuki/' + operation + '.' + image_format + '" /></div>');
    Azuki.Helpers.Window.center('Busybox');
    $('Busybox').show();
  },

  remove: function() {
    if ($('Busybox')) $('Busybox').remove();
  },

  done: function() {
    new Effect.Fade($('Busybox'), { afterFinish: function() { Azuki.Windowing.Busybox.remove(); }});
  },

  active: function() {
    return $('Busybox') ? true : false;
  }
};

/* END busybox.js */

/* START table_ruler.js */
/* Not implemented yet */
/* END table_ruler.js */

/* START color.js */
Azuki.Style.Color = {};
Azuki.Style.Color.RGB = Class.create();
Azuki.Style.Color.RGB.prototype = {
  initialize: function(value) {
    this.colors = Array(0, 0, 0);

    switch (typeof(value)) {
      case 'string':
        this.set_from_rgb_string(value);
      break;

      case 'object':
        this.colors = value;
      break;

      default:
      break;
    }
  },

  red: function() { return this.colors[0]; },
  green: function() { return this.colors[1]; },
  blue: function() { return this.colors[2]; },

  set_red: function(red) { this.colors[0] = red; },
  set_green: function(green) { this.colors[1] = green; },
  set_blue: function(blue) { this.colors[2] = blue; },

  /* Assumes rgb(1, 2, 3) */
  set_from_rgb_string: function(value) {
    this.colors = $A(value.replace(/rgb\(/, '').replace(/\)/, '').split(',')).collect(function(value) {
      return parseInt(value, 10);
    });
  },

  to_s: function() {
    return 'rgb(' + this.red() + ',' + this.green() + ',' + this.blue() + ')';
  },

  to_hex: function() {
    var hex = '';

    $A(this.colors).each(function(colour) {
      var value = this._hex_value(colour);
      if (value.length == 1) { value = '0' + value; }
      hex = hex + value;
    }.bind(this));

    return hex;
  },

  _hex_value: function(d) {
    var hex_map = '0123456789ABCDEF';
    var h = hex_map.substr(d&15, 1);

    while (d > 15) { d >>= 4; h = hex_map.substr(d&15, 1) + h; }
    return h;
  }
};

Azuki.Style.Color.Hex = Class.create();
Azuki.Style.Color.Hex.prototype = {
  /* Create with values like this: '#000000' */
  initialize: function(value) {
    this.value = value;
  },

  to_rgb: function() {
    this._set_rgb_values();
    var rgb_array = $A([this.red, this.green, this.blue]).collect(function(color) {
      return this._rgb_value(color);
    }.bind(this));

    return new Azuki.Style.Color.RGB(rgb_array);
  },

  _rgb_value: function(hex) {
    return parseInt(hex, 16) || 0;
  },

  _set_rgb_values: function() {
    this.red   = this.value.charAt(1) + this.value.charAt(2);
    this.green = this.value.charAt(3) + this.value.charAt(4);
    this.blue  = this.value.charAt(5) + this.value.charAt(6);
  }
};

Azuki.Style.Color.Methods = {
  invert: function(value) {
    var color = new Azuki.Style.Color.RGB(value);
    color.set_red(255 - parseInt(color.red(), 10));
    color.set_green(255 - parseInt(color.green(), 10));
    color.set_blue(255 - parseInt(color.blue(), 10));
    return color.to_s();
  },

  random: function() {
    var color = new Azuki.Style.Color.RGB(Array(Math.round((Math.random() * 255)), Math.round((Math.random() * 255)), Math.round((Math.random() * 255))));
    return color.to_s();
  }
};

Azuki.Style.Color.ElementMethods = {
  invertColor: function(element, property) {
    try {
      element.style[property] = Azuki.Style.Color.invert(element.getStyle(property));
      return true;
    }
    catch (exception) {
      return false;
    }
  },

  randomColor: function(element, property)
  {
    try {
      element.style[property] = Azuki.Style.Color.random();
      return true;
    }
    catch (exception) {
      return false;
    }
  }
};

Object.extend(Azuki.Style.Color, Azuki.Style.Color.Methods);
Element.addMethods(Azuki.Style.Color.ElementMethods);

/* END color.js */

/* START cookie.js */
Azuki.Storage.Cookie = {
  create: function(name, value, days, path) {
    var expires = '';
    path = typeof path == 'undefined' ? '/' : path;

    if (days) {
      var date = new Date();
      date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
      expires = "; expires=" + date.toGMTString();
    }

    if (name && value) {
      document.cookie = name + '=' + escape(value) + expires + '; path=' + path;
    }
  },

  find: function(name) {
    var matches = document.cookie.match(name + '=([^;]*)');
    if (matches && matches.length == 2) {
      return unescape(matches[1]);
    }
  },

  destroy: function(name) {
    this.create(name, ' ', -1);
  }
};

/* END cookie.js */

/* START window_helper.js */
Azuki.Helpers.Window = {
  size: function() {
    var width, height;

    if (self.innerHeight) {
      width  = self.innerWidth;
      height = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) {
      width  = document.documentElement.clientWidth;
      height = document.documentElement.clientHeight;
    } else if (document.body) {
      width  = document.body.clientWidth;
      height = document.body.clientHeight;
    }

    return {width: width, height: height};
  },

  page_size: function() {
    var x_scroll, y_scroll;
    var width, height;
    var window_size = Azuki.Helpers.Window.size();

    if (window.innerHeight && window.scrollMaxY) {
      x_scroll = document.body.scrollWidth;
      y_scroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight) {
      x_scroll = document.body.scrollWidth;
      y_scroll = document.body.scrollHeight;
    } else {
      x_scroll = document.body.offsetWidth;
      y_scroll = document.body.offsetHeight;
    }

    width  = x_scroll < window_size.width  ? window_size.width  : x_scroll;
    height = y_scroll < window_size.height ? window_size.height : y_scroll;

    return {width: width, height: height};
  },

  /* Centres absolute positions elements */
  center: function(element) {
    var options = Object.extend({update: false}, arguments[1] || {});
    element = $(element);

    Position.prepare();

    var offset_x = (Position.deltaX + Math.floor((Azuki.Helpers.Window.size().width - element.getDimensions().width) / 2))   || '0';
    var offset_y = (Position.deltaY + Math.floor((Azuki.Helpers.Window.size().height - element.getDimensions().height) / 2)) || '0';

    element.setStyle({ left: offset_x + 'px' });
    element.setStyle({ top:  offset_y + 'px' });

    if (options.update) {
      Event.observe(window, 'resize', function() { Position.center(element); });
      Event.observe(window, 'scroll', function() { Position.center(element); });
    }
  },

  center_with_margin: function(element) {
    element = $(element);
    var container = element.up();
    var margin = (container.getWidth() - element.getWidth()) / 2;
    element.setStyle({ marginLeft: margin + 'px', marginRight: margin + 'px'});
  }
};

/* END window_helper.js */

/* START keyboard_helper.js */
Azuki.Helpers.Keyboard = {
  which_meta_key: function() {
    var key = '';

    if (navigator.platform.match(/win/i)) {
      key = 'alt';
    } else if (navigator.platform.match(/mac/i)) {
      key = 'ctrl';
    } else {
      key = 'ctrl or alt';
    }

    return key;
  },

  underline_accesskey: function(element) {
    element = $(element);
    var key = this.which_meta_key();
    var regex = new RegExp(element.accessKey, 'i');
    var match = '';

    if (element.accessKey.length === 0 || element.hasClassName('noaccesskey') > 0) return;

    if (element.tagName == 'A' && !element.innerHTML.match(/class=.?accesskey/)) {
      match = element.innerHTML.match(regex);
      element.innerHTML = element.innerHTML.replace(regex, '<span class="accesskey" title="Press ' + key + '-' + String(match).toLowerCase() + ' to access this link using the keyboard">' + match + '</span>');
    } else if (element.tagName == 'INPUT') {
      element.value = element.value + ' [' + key + '+' + String(element.accessKey).toLowerCase() + ']';
    } else if (element.tagName == 'BUTTON') {
      var text = '';

      /* Remove text nodes from the button, this assumes the button has a format like: image text */
      $A(element.childNodes).each(function(child) {
        if (child.nodeName == '#text') {
          text = text + child.data;
          element.removeChild(child);
        }
      });

      match = text.match(regex);
      new Insertion.Bottom(element, text.replace(regex, '<span class="accesskey" title="Press ' + key + '-' + String(match).toLowerCase() + ' to access this link using the keyboard">' + match + '</span>'));
    }
  },

  underline_accesskeys: function() {
    this.underline_tag_accesskeys('a');
    this.underline_tag_accesskeys('button');
    this.underline_tag_accesskeys('input');
  },

  underline_tag_accesskeys: function(tag_name) {
    var key = this.which_meta_key();
    $A(document.getElementsByTagName(tag_name)).each(function(element) {
      this.underline_accesskey(element);
    }.bind(this));
  }
};

/* END keyboard_helper.js */

/* START forms_helper.js */
Azuki.Helpers.Forms = {
  /* Text helpers */
  set_caret_position: function(element, pos) {
    if (element.setSelectionRange) {
      element.focus();
      element.setSelectionRange(pos, pos);
    } else if (element.createTextRange) {
      var range = element.createTextRange();

      range.collapse(true);
      range.moveEnd('character', pos);
      range.moveStart('character', pos);
      range.select();
    }
  },

  get_caret_position: function(element) {
    if (element.setSelectionRange) {
      return element.selectionStart;
    } else if (element.createTextRange) {
      var range = document.selection.createRange();
      var stored_range = range.duplicate();
      stored_range.moveToElementText(element);
      stored_range.setEndPoint('EndToEnd', range);

      return stored_range.text.length - range.text.length;
    }
  },

  activate_controls: function(names) {
    $A(document.getElementsByTagName('input')).each(function(element) {
      $A(names).each(function(name) {
        if (element.name == name) {
          element.disabled = false;
        }
      });
    });
  },

  disable_on_submit: function() {
    $$('form').each(function(form) {
      var submit = $A(form.getElementsByTagName('input')).find(function(input) { return input.type == 'submit'; } );
      if (!submit) return;

      Event.observe(form, 'submit', function(e) {
        submit = $(submit);
        if (submit && !submit.hasClassName('nodisable')) submit.disable();
      });
    });
  }
};

/* END forms_helper.js */

/* START compatibility_helper.js */
Azuki.Helpers.Compatibility = {
  /* Rather than hacking IE's png transparency, we currently use this to switch between gif and png. */
  suitable_image_format: function()
  {
    if (!navigator.appVersion.match(/MSIE/)) return 'png';

    try {
      var version = parseFloat(navigator.appVersion.split('MSIE')[1]);
      return (version < 7.0) ? 'gif' : 'png';
    }
    catch (exception) {
      return 'png';
    }
  }
};

/* END compatibility_helper.js */

/* START textarea_extensions.js */
Azuki.Forms.TextAreaExtensions = Class.create();
Azuki.Forms.TextAreaExtensions.prototype = {
  initialize: function() {
    this._add_images();

    this.bigger = $$('.bigger');
    this.smaller = $$('.smaller');

    this.bigger.each(function(item) {
      Event.observe(item, 'click', this.increase_rows.bindAsEventListener(this));
    }.bind(this));

    this.smaller.each(function(item) {
      Event.observe(item, 'click', this.decrease_rows.bindAsEventListener(this));
    }.bind(this));
  },

  increase_rows: function(e) {
    var element = $(Event.element(e));
    var textarea = this._get_next_textarea(element);
    textarea.rows += 5;
  },

  decrease_rows: function(e) {
    var element = $(Event.element(e));
    var textarea = this._get_next_textarea(element);

    if (textarea.rows >= 5) {
      textarea.rows -= 4;
    }
  },

  _get_next_textarea: function(element) {
    var children = $A(element.parentNode.parentNode.childNodes);

    return children.find(function(child) { return child.nodeName == 'TEXTAREA'; });
  },

  _add_images: function() {
    $$('textarea').each(function(textarea) {
      new Insertion.Before(textarea, '<span class="resizer"><img class="bigger" alt="Increase the size of this text box" src="/images/azuki/open.png"/><img class="smaller" alt="Decrease the size of this text box" src="/images/azuki/close_small.png"/></span><br/>');
    });
  }
};

/* END textarea_extensions.js */

/* START select_search.js */
Azuki.Forms.SelectSearch = Class.create();
Azuki.Forms.SelectSearch.prototype = {
  initialize: function(search_input, search_results) {
    this.search_input = $(search_input);
    this.search_results = $(search_results);
    this.items = this.read_values();

    new Event.observe(this.search_input, 'click', this.clear_search_field.bindAsEventListener(this));
    new Event.observe(this.search_input, 'keydown', this.search.bindAsEventListener(this));
  },

  clear_search_field: function() {
    this.search_input.value = '';
    this.items.each(function(option, i) {
      this.search_results.options[i] = new Option(option.text, option.value);
    }.bind(this));
  },

  read_values: function() {
    return $A(this.search_results.options).collect(function(option) {
      return {value: option.value, text: option.innerHTML};
    });
  },

  search: function() {
    var query = this.search_input.value;
    var results = this.items.findAll(function(value) {
      return value.text.toLowerCase().match(query.toLowerCase());
    });

    this.search_results.options.length = 0;

    results.each(function(option, i) {
      this.search_results.options[i] = new Option(option.text, option.value);
    }.bind(this));
  }
};

/* END select_search.js */

/* START remote.js */

Azuki.Forms.Remote = Class.create();
Azuki.Forms.Remote.prototype = {
  initialize: function(options) {
    this.options = {
      form_id:                'RemoteForm',
      controller_name:        '',
      item_name:              '',
      method:                 'post',
      enctype:                null,
      ajax:                   false,
      add_close_button:       true,
      form_visible:           false,
      form_display_callback:  false,
      add_completed_callback: null
    };

    Object.extend(this.options, options || { });

    this.options.edit_url    = '/' + this.options.controller_name + '/edit/';
    this.options.new_url     = '/' + this.options.controller_name + '/new';
    this.options.create_url  = '/' + this.options.controller_name + '/create';
    this.options.update_url  = '/' + this.options.controller_name + '/update/';
    this.options.destroy_url = '/' + this.options.controller_name + '/destroy/';
  },

  edit: function(e) {
    var element = Event.element(e);

    if (element.nodeName == 'IMG') {
      element = element.up('.edit_' + this.options.item_name);
    }

    if (!element) return true;

    if ((element.nodeName == 'A' || element.nodeName == 'BUTTON') && element.hasClassName('edit_' + this.options.item_name)) {
      var item_id = element.id.match(/\d+$/);

      this.show_form(this.options.form_id, this.options.edit_url + item_id, this.options.update_url + item_id, this.options.form_display_callback);
      Event.stop(e);
      return false;
    }

    return true;
  },

  add: function(e)
  {
    var element = Event.element(e);

    if (element.nodeName == 'IMG') {
      element = element.up('.add_' + this.options.item_name);
    }

    if (!element) return true;

    if ((element.nodeName == 'A' || element.nodeName == 'BUTTON') && element.hasClassName('add_' + this.options.item_name)) {
      if (this.options.add_callback) this.options.add_callback();
      this.show_form(this.options.form_id, this.options.new_url, this.options.create_url, this.options.form_display_callback);
      Event.stop(e);
      return false;
    }

    return true;
  },

  destroy: function(e)
  {
    var element = Event.element(e);
    if ((element.nodeName == 'A' || element.nodeName == 'IMG') && element.hasClassName('destroy_' + this.options.item_name)) {
      var item_id = element.id.match(/\d+$/);

      if (confirm('Are you sure you want to delete that item?')) {
        window.location = this.options.destroy_url + item_id;
      }

      Event.stop(e);
      return false;
    }
  },

  show_form: function(id, url, save_url, callback) {
    if (this.options.form_visible) {
      return;
    } else {
      this.options.form_visible = true;
    }

    Azuki.Windowing.Busybox.busy('loading');

    function close_form() {
      if ($(id)) {
        $(id).remove();
        Azuki.Windowing.Fader.remove();
      }
    }

    function focus_field() {
      try {
        if ($(id)) $(id).focusFirstElement();
      } catch (exception) {
      }
    }

    var fields_id = id + 'FormFields';
    var cancel_id = 'Cancel' + id;
    var editor_html = '';
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format();
    var enctype = typeof this.options.enctype == 'undefined' ? '' : 'enctype="multipart/form-data"';

    close_form();

    editor_html += '<form style="display: none"' + this.ajax_form_html(save_url, id) + ' method="' + this.options.method + '" ' + enctype + ' action="' + save_url + '" class="edit standard" id="' + id + '">';
    if (this.options.add_close_button) editor_html += '  <div id="' + cancel_id + '" style="position: absolute; left: -15px; top: -25px; cursor: pointer"><img alt="Cancel without saving" style="cursor: pointer" width="36" height="36" border="0" src="/images/close.' + image_format + '"/></div>';
    editor_html += '  <div id="' + fields_id + '"></div>';
    editor_html += '</form>';

    new Insertion.Top(document.body, editor_html);

    new Ajax.Updater($(fields_id), url, {
      evalScripts: true,
      method: 'get',
      onComplete: function() {
        Azuki.Helpers.Window.center(id);
        new Effect.Appear($(id), { duration: 0.3, afterFinish: function() { Azuki.Windowing.Fader.alter_selects('visible'); focus_field(); } });
        Azuki.Windowing.Fader.fade();
        Azuki.Windowing.Busybox.done();

        if (this.options.ajax) {
          try {
            Event.observe(id, 'submit', this.ajax_submit.bindAsEventListener(this));
          } catch(e) {
            console.log(e);
          }
        }

        Event.observe(cancel_id, 'click', function(e) { close_form(id); this.options.form_visible = false; Event.stop(e); return false; }.bind(this));

        if (callback) callback();
      }.bind(this)
    });
  },

  ajax_form_html: function() {
    if (!this.options.ajax) return '';
    return ' onsubmit="return false" ';
  },

  ajax_submit: function() {
    this.options.form_visible = false;
    new Ajax.Request(this.options.create_url, { onSuccess: this.options.ajax_on_succes, postBody: Form.serialize(this.options.form_id), onFailure: this.options.ajax_on_failure });
    $(this.options.form_id).remove();
    Azuki.Windowing.Fader.remove();
    return false;
  }
};

/* END remote.js */

/* START controller.js */
Azuki.Controller = {
  run: function() {
    if (document.body.id) Azuki.Controller.run_controller(document.body.id);
    Azuki.Controller.run_controller('Application');
  },

  run_controller: function(id) {
    var controller_class = id + 'Controller';
    if (!window[controller_class]) return;

    if (eval(controller_class + '.run')) {
      eval(controller_class + '.run()');
    } else {
      controller = new window[controller_class];
    }
  }
};

function init() {
  if (arguments.callee.done) return;

  arguments.callee.done = true;

  if (_timer) clearInterval(_timer);

  Azuki.Controller.run();
}

/* for Mozilla/Opera9 */
if (document.addEventListener) {
  document.addEventListener("DOMContentLoaded", init, false);
}

/* for Internet Explorer */
/*@cc_on @*/
/*@if (@_win32)
  document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>")
  var script = document.getElementById("__ie_onload")

  script.onreadystatechange = function()
  {
    if (this.readyState == "complete")
    {
      init() // call the onload handler
    }
  }
/*@end @*/

/* for Safari */
if (/WebKit/i.test(navigator.userAgent))
{
  var _timer = setInterval(function() {
    if (/loaded|complete/.test(document.readyState)) {
      init(); // call the onload handler
    }
  }, 10);
}

/* for other browsers */
window.onload = init;

/* END controller.js */
function make_col(col, max) {return Math.floor((col / ((max) / 1)) * 255)}
function make_rgb_col(col) { return 'rgb(' + col + ',' + (225 - col) + ',30)' }
var ApplicationController = new Object();

ApplicationController.Methods = {
  run: function(id) {
    ShowHideHelper.add_events();
    ShowHideHelper.project_list_show_hide();

    this.client_controls();
    this.project_controls();

    TableHelper.stripe('stripe');
    /* Add hover class to standard table rows */
    $$('table.standard tr').each(function(element) { element.addClassName('hover_highlight'); });
    $$('table.issue_summary tr').each(function(element) { element.addClassName('hover_highlight'); });

    /* Colours */
    new ColourBlockEditorController;

    /* Hover helper */
    new HighlightHelper('hover_highlight');

    new Azuki.Windowing.ContextualHelp();

    /* Show welcome help keys */
    if ($('welcome')) {
      $$('.key').each(function(key) { key.show(); new Effect.Opacity(key, { from: 0.7, to: 0.7 }); key.setStyle('z-index: 1030'); });
    }

    this.fade_elements('.resolved');

    /* In place state editing: TODO -- these should work with json responses from the server */
    new InPlaceSelect({class_name: 'status_issue', cancel_class_name: 'cancel_status_issue', select_class_name: 'status_issue_select', container_class_name: 'status_container', save_url: '/issues/update', url: '/issues/status_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0]; }});
    new InPlaceSelect({class_name: 'status_exception', cancel_class_name: 'cancel_status_exception', select_class_name: 'status_exception_select', container_class_name: 'status_container', save_url: '/exceptions/update', url: '/exceptions/status_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0]; }});

    new InPlaceSelect({class_name: 'assigned_to_issue', cancel_class_name: 'cancel_assigned_to_issue', select_class_name: 'assigned_to_issue_select', container_class_name: 'assigned_to_container', save_url: '/issues/update', url: '/issues/user_list', append_parameters: function(element) { return 'update_inline=true&id=' + element.id.match(/\d+$/)[0]; }});

    this.colourize_severity();

    new ModelErrors('issue');
    new ModelErrors('user');
  },

  colourize_severity: function() {
    $$('.severity').each(function(element) {
      var severity = parseInt(element.innerHTML, 10) || 0;
      element.setStyle({ backgroundColor: make_rgb_col(make_col(severity, 100)) });
    });
  },

  fade_elements: function(class_name) {
    $$(class_name).each(function(element) {
      new Effect.Opacity(element, { from: 0.5, to: 0.5 });
    });
  },

  client_controls: function() {
    if (!$('AddClient')) return;

    var remote_form = new Azuki.Forms.Remote({form_id: 'ClientForm', controller_name: 'clients', item_name: 'client', add_close_button: false});

    Event.observe('AddClient', 'click', remote_form.add.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
  },

  project_controls: function() {
    if (!$('AddProject')) return;

    var remote_form = new Azuki.Forms.Remote({form_id: 'ProjectForm', controller_name: 'projects', item_name: 'project', add_close_button: false});

    Event.observe('AddProject', 'click', remote_form.add.bindAsEventListener(remote_form));
  }
};

Object.extend(ApplicationController, ApplicationController.Methods);
var ClientsController = new Object();
ClientsController.Methods = {
  run: function(id) {
    var remote_form = new Azuki.Forms.Remote({
      controller_name: 'clients',
      item_name: 'client',
      add_close_button: false
    });

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.add.bindAsEventListener(remote_form));
  }
};

Object.extend(ClientsController, ClientsController.Methods);
var ColourBlockEditorController = Class.create();
ColourBlockEditorController.prototype = {
  initialize: function(selector) {
    if (!selector) selector = '.colour_block_small';

    /* Add dynamic block editors to the small blocks */
    $$(selector).each(function(block) {
      if (User && User.type == 'Administrator') Event.observe(block, 'click', this.show_editor.bindAsEventListener(this));
    }.bind(this));

    /* Add the normal editors when they're visible */
    $$('div.colour_sliders').each(function(slider) {
      ColourBlockHelper.apply_colour_slider_to(slider, $('ColourValueField_' + slider.id.match(/(\d+)$/)[0]));
    });
  },

  show_editor: function(event) {
    element = Event.element(event);

    var colour = element.getStyle('backgroundColor').parseColor();
    var html = this.html();
    if ($('DynamicSliderContainer')) $('DynamicSliderContainer').remove();

    new Insertion.Top(document.body, html);
    WindowHelper.center('DynamicSliderContainer');
    Azuki.Windowing.Fader.fade();
    $('DynamicSliderContainer').show();

    $('DynamicSliderValue').value = colour;
    $('ColourBlock_Dynamic').setStyle({ backgroundColor: colour});

    Event.observe('DynamicSliderContainer', 'submit', function(e) { Event.stop(e); return false; });

    Event.observe('SaveDynamicColourSelection', 'click', function(e) {
      this.save(element);
      element.setStyle({backgroundColor: $('DynamicSliderValue').value});

      $('DynamicSliderContainer').remove();
      Azuki.Windowing.Fader.remove();

      Event.stop(e); return false;
    }.bind(this));

    Event.observe('CancelDynamicColourSelection', 'click', function(e) {
      $('DynamicSliderContainer').remove();
      Azuki.Windowing.Fader.remove();

      Event.stop(e); return false;
    }.bind(this));

    ColourBlockHelper.apply_colour_slider_to($('DynamicSlider'), $('DynamicSliderValue'));
  },

  html: function() {
    var image_format = Azuki.Helpers.Compatibility.suitable_image_format();
    var html = '';

    html += '<form class="floating_sliders standard" id="DynamicSliderContainer" style="display: none">';
    html += '    <h2>Change this item\'s colour</h2>';
    html += '    <div style="margin-left: 15px" class="colour_sliders" id="DynamicSlider">';
    html += '      Red<div class="slider" id="colour_dynamic_track1" style="width: 255px"><div class="handle" id="colour_dynamic_handle1"> </div></div> ';
    html += '      Green<div class="slider" id="colour_dynamic_track2" style="width: 255px"><div class="handle" id="colour_dynamic_handle2"> </div></div>';
    html += '      Blue<div class="slider" id="colour_dynamic_track3" style="width: 255px; clear: right"><div class="handle" id="colour__dynamichandle3"> </div></div>';
    html += '    </div>';
    html += '  <div class="colour_block" id="ColourBlock_Dynamic"> </div>';
    html += '  <div class="action"><div class="buttons"><input type="text" name="slider_value" value="" id="DynamicSliderValue" style="display: none" /><input type="text" name="slider_value" value="" id="DynamicSliderValue" style="display: none" /><button id="SaveDynamicColourSelection" class="yes" id="submit" type="submit"><img alt="" src="/images/azuki/yes.gif"/> Save</button> <a id="CancelDynamicColourSelection" class="no" href="#"><img alt="" src="/images/azuki/no.gif"/> Cancel </a></div></div>';
    html += '</form>';

    return html;
  },

  save: function(element) {
    if (!element.className.match(/_Colour_Block_/)) return;

    var id   = element.className.match(/\d+$/)[0];
    var type = element.className.replace(/[^ ]* ([^_]*)_Colour_Block_\d+$/, '$1');
    var url  = '/' + type.toLowerCase() + '/' + id + '/save_colour';
    var colour_class = type + '_Colour_Block_' + id;

    /* Reload page on reports (to get new graphs) */
    new Ajax.Request(url, {method: 'post', postBody: 'colour=' + $('DynamicSliderValue').value, onComplete: function() { if ($('Reports')) { window.location.reload(); } }});

    /* Update any other colour blocks with this class */
    $$('.' + colour_class).each(function(colour_block) {
      colour_block.setStyle({backgroundColor: $('DynamicSliderValue').value});
    });
  }
};
var ExceptionsController = new Object();
ExceptionsController.Methods = {
  run: function() {
    ExceptionsController.exception_form_handling();

    if ($('SortViewControl')) {
      new Menu('SortViewControl', 'SortViewOptions', 'menu_sort');
      new Menu('OptionsViewControl', 'ViewOptions', 'menu_sort');
    }
  },

  exception_form_handling: function() {
    var remote_form = new Azuki.Forms.Remote({form_id: 'ExceptionForm', controller_name: 'exceptions', item_name: 'exception', add_close_button: false });

    if ($('AddExceptionNav')) {
      remote_form.options.new_url = $('AddExceptionNav').up('form').action;
      Event.observe('AddExceptionNav', 'click', remote_form.add.bindAsEventListener(remote_form));
    } else {
      remote_form.options.form_display_callback = function() {
        Element.insert($(remote_form.options.form_id), '<input type="hidden" name="redirect_to_show" value="true" />');
      };
    }

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
  }
};
Object.extend(ExceptionsController, ExceptionsController.Methods);
var HelpController = new Object();
HelpController.Methods = {
  run: function(id) {
    $('ToC').hide();

    Event.observe('ShowToC', 'click', function() {
      $('ToC').toggle();
    });
  }
};
Object.extend(HelpController, HelpController.Methods);
var IssuesController = new Object();
IssuesController.Methods = {
  run: function(id) {
    this.add_technical_notes();

    IssuesController.issue_form_handling();
    IssuesController.message_form_handling();
    IssuesController.attachment_form_handling();

    if ($('SortViewControl')) {
      new Menu('SortViewControl', 'SortViewOptions', 'menu_sort');
      new Menu('OptionsViewControl', 'ViewOptions', 'menu_sort');
    }
  },

  issue_form_handling: function() {
    if (!$('AddIssueNav')) return;

    var remote_form = new Azuki.Forms.Remote({form_id: 'IssueForm', controller_name: 'issues', item_name: 'issue', add_close_button: false, form_display_callback: IssuesController.form_callbacks});
    remote_form.options.new_url = $('AddIssueNav').up('form').action;

    if ($('Messages')) {
      remote_form.options.form_display_callback = function() {
        Element.insert($(remote_form.options.form_id), '<input type="hidden" name="redirect_to_show" value="true" />');
        IssuesController.form_callbacks();
      };
    }

    Event.observe('AddIssueNav', 'click', remote_form.add.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
  },

  attachment_form_handling: function() {
    if (!$('NewAttachment')) return;

    var remote_form = new Azuki.Forms.Remote({form_id: 'AttachmentForm', controller_name: 'attachments', item_name: 'attachment', add_close_button: false });
    remote_form.options.new_url = $('NewAttachment').href;
    remote_form.options.enctype = true;
    Event.observe('NewAttachment', 'click', remote_form.add.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
  },

  message_form_handling: function() {
    if (!$('NewMessage')) return;

    var remote_form = new Azuki.Forms.Remote({form_id: 'MessageForm', controller_name: 'messages', item_name: 'message', add_close_button: false });
    remote_form.options.new_url = $('NewMessage').href;
    Event.observe('NewMessage', 'click', remote_form.add.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
  },

  form_callbacks: function() {
    IssuesController.add_technical_notes();
  },

  add_technical_notes: function() {
    if ($('issue_technical') && $('issue_technical').hasClassName('new')) {
      $('issue_technical').value = BrowserCapabilities.analyse();
    }
  }
};
Object.extend(IssuesController, IssuesController.Methods);
var ProjectsController = new Object();
ProjectsController.Methods = {
  run: function(id) {
    var remote_form = new Azuki.Forms.Remote({
      controller_name: 'projects',
      item_name: 'project',
      add_close_button: false
    });

    Event.observe(document, 'click', remote_form.edit.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.destroy.bindAsEventListener(remote_form));
    Event.observe(document, 'click', remote_form.add.bindAsEventListener(remote_form));
  }
};
Object.extend(ProjectsController, ProjectsController.Methods);
var SearchController = new Object();
SearchController.Methods = {
  run: function(id) {
    $('search_text').activate();
  }
};
Object.extend(SearchController, SearchController.Methods);
if (!window.ColourBlockHelper) var ColourBlockHelper = new Object();

ColourBlockHelper.apply_colour_slider_to = function(slider, value_field, save_callback) {
  var red = slider.down('div.slider');
  var green = red.next('div.slider');
  var blue = green.next('div.slider');
  var block = slider.next('div.colour_block');

  var range = $R(0, 255);

  if (slider.hasClassName('light')) range = $R(220, 255);
  if (slider.hasClassName('dark')) range = $R(0, 120);

  var colour_block = new ColourBlock(block, value_field);
  new ColourSlider(red, 'red', colour_block, save_callback, range);
  new ColourSlider(green, 'green', colour_block, save_callback, range);
  new ColourSlider(blue, 'blue', colour_block, save_callback, range);
};
var HighlightHelper = new Class.create();
HighlightHelper.prototype = {
  initialize: function(class_name) {
    this.class_name = class_name;
    this.enable();
  },

  enable: function() {
    Event.observe(document, 'mouseover', this.mouse_over.bindAsEventListener(this));
    Event.observe(document, 'mouseout', this.mouse_out.bindAsEventListener(this));
  },

  mouse_over: function(event) {
    var element = Event.element(event);
    var hover_parent = this.find_hover_parent(element);

    if (hover_parent && hover_parent.hasClassName(this.class_name)) {
      hover_parent.addClassName('hover_active');
    }
  },

  mouse_out: function(event) {
    var element = Event.element(event);
    var hover_parent = this.find_hover_parent(element);

    if (hover_parent && hover_parent.hasClassName(this.class_name)) {
      hover_parent.removeClassName('hover_active');
    }
  },

  find_hover_parent: function(element) {
    if (!element) return null;
    element = $(element);

    if (element.hasClassName(this.class_name)) {
      return element;
    }

    return element.ancestors().find(function(parent) { if (parent) { return parent.hasClassName(this.class_name); } }.bind(this));
  }
};
var ShowHideHelper = new Object();
ShowHideHelper.Methods = {
  remove_events: function() {
    $$('a.show_hide').each(function(element) {
      var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''));
      toggler.remove_event();
    });
  },

  add_events: function() {
    $$('a.show_hide').each(function(element) {
      var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''));
      toggler.add_event();
    });
  },

  invert: function(element) {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''));
    toggler.hide();
  },

  invert_and_set_title: function(element, title) {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''));
    toggler.hide();
    toggler.original_text = title;
    element.innerHTML = title;
  },

  project_list_show_hide: function() {
    $$('a.project_show_hide').each(function(element) {
      ShowHideHelper.add_project_show_hide(element);
    });
  },

  add_project_show_hide: function(element) {
    var toggler = new Toggler(element.id, element.id.replace(/Link$/, ''), function() {
      var view = this.state ? 'show' : 'hide';
      var client_id = this.target.id.match(/\d+$/)[0];

      Preferences.save_client_view_setting(view, client_id);
    });
    toggler.class_open = 'close';
    toggler.class_closed = 'open';
    toggler.cancel_text = toggler.original_text;
    toggler.add_event();
  }
};
Object.extend(ShowHideHelper, ShowHideHelper.Methods);
var SliderHelper = new Object();
SliderHelper.Methods = {
  show: function(container_id, slider_id, value, colour_value, size, max) {
    var handle_id = 'handle' + slider_id;
    var track_id = 'track' + slider_id;
    var value_id = 'slider_value' + slider_id;

    new Control.Slider(handle_id, track_id, {
      onSlide: function(v) { v = v * size; var col = make_col(v, size); $(value_id).value = Math.round((v / size) * max); $(track_id).style.backgroundColor = make_rgb_col(col); },
      onChange: function(v) { v = v * size; var col = make_col(v, size); $(value_id).value = Math.round((v / size) * max); $(track_id).style.backgroundColor = make_rgb_col(col); },
      maximum: size,
      sliderValue: value
    });

    col = make_col(colour_value, max);
    $(track_id).style.backgroundColor = make_rgb_col(col);
    Element.remove(container_id);
  }
};
Object.extend(SliderHelper, SliderHelper.Methods);
var StripeHelper = new Object();
StripeHelper.Methods = {
  stripe: function(class_name) {
    var even = false;
    $(document.getElementsByClassName(class_name)).each(function(item) {
      item.addClassName(even ? 'even' : 'odd');
      even = !even;
    });
  }
};
Object.extend(StripeHelper, StripeHelper.Methods);
var TableHelper = new Object();
TableHelper.Methods = {
  stripe: function(class_name) {
    var classes = document.getElementsByClassName(class_name);

    if (!classes) return;

    $A(classes).each(function(table) {
      $A($$('tbody')).each(function(tbody) {
        var even = false;
        $A($$('tr')).each(function(tr, row_id) {
          tr.addClassName(even ? 'even' : 'odd');
          even = !even;
        });
      });
    });
  }
};
Object.extend(TableHelper, TableHelper.Methods);
var ColourBlock = Class.create();
ColourBlock.prototype = {
  initialize: function(block, value_field) {
    this.colours = Array(0, 0, 0);
    this.block = block;
    this.value_field = value_field;

    this.set_preset_colours();
  },

  /* The following methods return and expect RGB values */
  red: function() { return this.colours[0]; },
  green: function() { return this.colours[1]; },
  blue: function() { return this.colours[2]; },

  set_red: function(red) { this.colours[0] = red; },
  set_green: function(green) { this.colours[1] = green; },
  set_blue: function(blue) { this.colours[2] = blue; },

  update: function() {
    var colour = 'rgb(' + this.colours[0] + ',' + this.colours[1] + ',' + this.colours[2] + ')';
    this.value_field.value = '#' + this.to_hex();
    $(this.block).setStyle({ backgroundColor: colour });
  },

  set_preset_colours: function() {
    try {
      var red   = $(this.value_field).value.charAt(1) + $(this.value_field).value.charAt(2);
      var green = $(this.value_field).value.charAt(3) + $(this.value_field).value.charAt(4);
      var blue  = $(this.value_field).value.charAt(5) + $(this.value_field).value.charAt(6);

      this.block.style.backgroundColor = this.value_field.value;

      this.set_red(this.rgb(red));
      this.set_green(this.rgb(green));
      this.set_blue(this.rgb(blue));

      this.update();
    } catch (exception) {
      this.set_red(0);
      this.set_green(0);
      this.set_blue(0);
    }
  },

  to_hex: function() {
    var hex = '';

    $A(this.colours).each(function(colour) {
      var value = this.hex(colour);

      if (value.length == 1) { value = '0' + value; }

      hex = hex + value;
    }.bind(this));

    return hex;
  },

  hex: function(d) {
    var hex_map = '0123456789ABCDEF';
    var h = hex_map.substr(d&15, 1);

    while (d > 15) { d >>= 4; h = hex_map.substr(d&15, 1) + h; }
    return h;
  },

  rgb: function(hex) {
    return parseInt(hex, 16) || 0;
  },

  /* Consider these private */
  get: function(colour_name) {
    switch(colour_name) {
      case 'red':
        return this.colours[0];
      break;

      case 'green':
        return this.colours[1];
      break;

      case 'blue':
        return this.colours[2];
      break;

      default:
        return 0;
      break;
    }

    return 0;
  },

  set: function(colour_name, value) {
    switch(colour_name) {
      case 'red':
        return this.set_red(value);
      break;

      case 'green':
        return this.set_green(value);
      break;

      case 'blue':
        return this.set_blue(value);
      break;

      default:
        return false;
      break;
    }

    return false;
  }
};
var ColourSlider = Class.create();
ColourSlider.prototype = {
  initialize: function(slider, colour_name, block, save_callback, range) {
    range = typeof(range) == 'undefined' ? $R(0, 255) : range;

    this.colour_block = block;
    this.slider = slider;
    this.colour_name = colour_name;
    this.save_callback = save_callback;
    this.range = range;
    this.track = slider;
    this.handle = slider.down('div.handle');

    this.create_slider();
  },

  create_slider: function() {
    if (this.control) return this.control;

    this.control = new Control.Slider(this.handle, this.track, {
      range: this.range,
      sliderValue: this.colour_block.get(this.colour_name),
      disabled: false,
      onChange: this.updateColourAndSave.bind(this),
      onSlide: this.updateColour.bind(this)
    });

    return null;
  },

  updateColourAndSave: function(value) {
    this.updateColour(value);
    if (this.save_callback) this.save_callback();
  },

  updateColour: function(value) {
    this.colour_block.set(this.colour_name, Math.round(value));
    this.colour_block;
    this.colour_block.update();
  }
};
function IEFlashVersion()
{
  var version;
  var axo;
  var e;


  try {
    axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
    version = axo.GetVariable("$version");
  } catch (e) {
  }

  if (!version) {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");


      version = "WIN 6,0,21,0";

      axo.AllowScriptAccess = "always";

      version = axo.GetVariable("$version");

    } catch (e) {
    }
  }

  if (!version) {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version = axo.GetVariable("$version");
    } catch (e) {
    }
  }

  if (!version) {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
      version = "WIN 3,0,18,0";
    } catch (e) {
    }
  }

  if (!version) {
    try {
      axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
      version = "WIN 2,0,0,11";
    } catch (e) {
      version = -1;
    }
  }

  return version;
}

BrowserCapabilities = new Object();
BrowserCapabilities.analyse = function()
{
  var results = $H(Detectors).keys().collect(function(method)
  {
    var result = Detectors[method].run();

    if (typeof(result[0]) == 'object') {
      return $A(result).collect(function(sub_result)
      {
        return sub_result[0] + ': ' + sub_result[1];
      });
    } else {
      return result[0] + ': ' + result[1];
    }
  });

  return results.join("\n");
};

Detectors = new Object();
/* Methods for collecting browser/screen settings */
Detectors.resolution = {
  run: function() {
    return ['resolution', screen.width + 'x' + screen.height];
  }
};

Detectors.depth = {
  run: function() {
    return ['color_depth', screen.colorDepth];
  }
};

Detectors.flash = {
  run: function() {
    var flash_version = 0;
    var flash_installed = 'No';
    if (navigator.plugins && navigator.plugins.length) {
      x = navigator.plugins['Shockwave Flash'];
      if (x) {
        flash_installed = 'Flash and Shockwave';
        if (x.description) {
          y = x.description;
          flash_version = y.charAt(y.indexOf('.')-1);
        }
      } else {
        flash_installed = 'Flash installed';
      }

      if (navigator.plugins['Shockwave Flash 2.0']) {
        flash_installed = 'Flash and Shockwave Flash 2.0';
        flash_version = 2;
      }
    } else if (navigator.mimeTypes && navigator.mimeTypes.length) {
      x = navigator.mimeTypes['application/x-shockwave-flash'];
      if (x && x.enabledPlugin)
        flash_installed = 'Flash and Shockwave';
      else
        flash_installed = 'Flash installed';
    } else {
      var ie_flash_version = IEFlashVersion();

      if (ie_flash_version > 0) {
        flash_installed = 'Flash installed';
        flash_version = ie_flash_version;
      }
    }
    return [['flash_version', flash_version], ['flash_installed', flash_installed]];
  }
};

Detectors.ua =
{
  run: function() {
    var ua, version = 'unknown';
    var agent = navigator.userAgent.toLowerCase();
    if (typeof(window.opera) == 'undefined') {
      if (document.all && !window.print) {
        ua = 'Mac IE';
        version = parseFloat(navigator.appVersion.split('MSIE')[1]);
      } else if (agent.indexOf('msie') != -1 && agent.indexOf('webtv') == -1) {
        ua = 'IE';
        version = parseFloat(navigator.appVersion.split('MSIE')[1]);
      } else if (agent.indexOf('safari') != - 1) {
        ua = 'Safari';
        version = parseFloat(agent.substring(agent.lastIndexOf('safari/') + 7 ));
      } else if (agent.indexOf('camino') != -1) {
        ua = 'Camino';
        version = parseFloat(agent.substring(agent.indexOf('camino/') + 7));
      } else if (agent.indexOf('flock') != -1) {
        ua = 'Flock';
        version = parseFloat(agent.substring(agent.indexOf('flock/') + 7));
      } else if (agent.indexOf('firefox/') != -1) {
        ua = 'Firefox';
        version = parseFloat(agent.substring(agent.indexOf('firefox/') + 8));
      } else if (agent.indexOf('firebird/') != -1) {
        ua = 'Firebird';
        version = parseFloat(agent.substring(agent.indexOf('firebird/') + 9));
      } else if (agent.indexOf('konqueror') != -1) {
        ua = 'Konqueror';
        version = parseFloat(agent.substring(agent.indexOf('konqueror/') + 10));
      } else if (agent.indexOf('omniweb') != - 1) {
        ua = 'OmniWeb';
        version = parseFloat(agent.substring(agent.lastIndexOf('omniweb/') + 8));
      } else if (agent.indexOf('maxthon') != -1) {
        ua = 'Maxthon';
        version = parseFloat(agent.substring(agent.lastIndexOf('maxthon/') + 8));
      } else if (agent.indexOf('icab') != -1) {
        ua = 'iCab';
        version = parseFloat(agent.substring(agent.indexOf('icab') + 5));
      } else if (agent.indexOf('aol') != -1) {
        ua = 'AOL';
        version = parseFloat(agent.substring(agent.indexOf('aol') + 4));
      } else if (agent.indexOf('webtv') != -1) {
        ua = 'WebTV';
        version = parseFloat(agent.substring(agent.indexOf('webtv') + 6));
      } else if (this.isGecko && agent.indexOf('gecko/') + 14 == agent.length) {
        ua = 'Mozilla';
        version = parseFloat(agent.substring(agent.indexOf('rv:') + 3));
      } else if ( (agent.indexOf('netscape') != -1)) {
        ua = 'Netscape';
        version = parseFloat(agent.substring(agent.indexOf('rv:') + 3));
      } else {
        ua = 'Unknown';
        version = 'Uknown';
      }
    } else {
      ua = 'opera';
      if (opera.version())
        version = opera.version();
      else
        version = '5 or 6';
    }

    return [['user_agent', ua], ['version', version]];
  }
};

Detectors.os = {
  run : function() {
    var agent = navigator.userAgent.toLowerCase();
    css_mode = document.compatMode ? document.compatMode : 'Backwards compatibility';
    if (agent.indexOf('win') != -1) {
      os = 'Windows';
      if (agent.indexOf('95') != -1)
        os += ' 95';
      else if (agent.indexOf('98') != -1)
        os += ' 98';
      else if (agent.indexOf('nt 5.0') != -1)
        os += ' 2000';
      else if (agent.indexOf('win32') != -1)
        os += ' win32';
      else if (agent.indexOf('32bit') != -1)
        os += ' 32bit';
      else if (agent.indexOf('xp') != -1 || agent.indexOf('nt 5.1') != -1)
        os += ' XP';
      else if (agent.indexOf('nt') != -1)
        os += ' NT';
    } else if (agent.indexOf('mac') != -1) {
      os = 'Mac OS';
      if (agent.indexOf('os x') != -1)
        os += ' X';
    }
    else if (agent.indexOf('unix') != -1 || agent.indexOf('sunos') != -1 || agent.indexOf('bsd') != -1 || agent.indexOf('x11') != -1)
      os = 'UNIX';
    else if (agent.indexOf('linux') != -1)
      os = 'Linux';
    else
      os = 'Unknown';

    return ['OS', os];
  }
};

Detectors.css_mode = {
  run: function() {
    css_mode = document.compatMode ? document.compatMode : 'Backwards compatibility';
    return ['css_mode', css_mode];
  }
};

Detectors.java = {
  run: function() {
    var java_installed = false;
    if (navigator.mimeTypes && navigator.mimeTypes.length) {
      if (typeof(navigator.mimeTypes['application/x-java-vm']) != undefined)
        java_installed = true;
      if (navigator.plugins) {
        for (var i = 0; i < navigator.plugins.length; i++)  {
          if (navigator.plugins[i].name.indexOf('Java Plug-in') >= 0) {
            java_installed = true;
            v_java = navigator.plugins[i].description.substring(navigator.plugins[i].description.lastIndexOf('Plug-in ') + 8, navigator.plugins[i].description.lastIndexOf(' for'));
            break;
          }
        }
      }
    } else {
      var java = new Object();
      java_installed = java.installed=navigator.javaEnabled() ? true : false;
      if (!java_installed) {
        var plugin_types = ['application/x-java-jnlp-file', 'application/x-java-applet', 'JavaWebStart.IsInstalled', 'Java'];
        for (var j = 0; j < plugin_types.length; j++) {
          document.write("<SCRIPT LANGUAGE=\"VBScript\"><!-- on error resume next \n java_installed = IsObject(CreateObject('" + plugin_types[j] + "'))\n // --></SCR" + "IPT>");
          if (java_installed)
            break;
        }
      }
    }

    if (java_installed)
      java_installed_text = 'Java installed';
    else
      java_installed_text = 'Java not installed';

    return ['java', java_installed_text];
  }
};
InPlaceSelect = Class.create();
InPlaceSelect.prototype = {
  initialize: function(options) {
    this.form_id = 'InPlaceSelect_' + (new Date()).getTime();
    this.options = {
      class_name:           '',
      url:                  '',
      cancel_class_name:    '',
      select_class_name:    '',
      save_url:             '',
      container_class_name: '',
      append_parameters:    false,
      completed_callback:   null
    };

    Object.extend(this.options, options || { });

    Event.observe(document, 'click', this.show_form.bindAsEventListener(this));
    Event.observe(document, 'click', this.cancel_form.bindAsEventListener(this));
    Event.observe(document, 'change', this.save.bindAsEventListener(this));
  },

  show_form: function(event) {
    var element = Event.element(event);
    var ajax_parameters = '';

    if (element.hasClassName(this.options.class_name)) {
      this.hidden_element = element;
      element.hide();

      Element.insert(element, { after: '<div id="' + this.form_id + '"></div>' });

      if (this.options.append_parameters) {
        ajax_parameters = this.options.append_parameters(element);
      }

      new Ajax.Updater(this.form_id, this.options.url, { parameters: ajax_parameters });

      Event.stop(event);
      return false;
    }
  },

  cancel_form: function(event) {
    var element = Event.element(event);

    if (element.hasClassName(this.options.cancel_class_name)) {
      $(this.form_id).remove();
      this.hidden_element.show();

      Event.stop(event);
      return false;
    }
  },

  save: function(event) {
    var element = Event.element(event);

    if (element.hasClassName(this.options.select_class_name)) {
      var select = $$('#' + this.form_id + ' .' + this.options.select_class_name).first();
      var ajax_parameters = select.name + '=' + select.value;
      var container = this.hidden_element;

      if (this.options.append_parameters) {
        ajax_parameters = ajax_parameters + '&' + this.options.append_parameters(element);
      }

      if (this.options.container_class_name) {
        container = this.hidden_element.up('.' + this.options.container_class_name);
      }

      this.hidden_element.show();
      new Ajax.Updater(container, this.options.save_url, { parameters: ajax_parameters } );
      $(this.form_id).remove();

      Event.stop(event);
      return false;
    }
  }
};
var Menu = Class.create();
Menu.prototype = {
  initialize: function(control_id, menu_id, menu_item_class) {
    this.control_id = control_id;
    this.menu_id = menu_id;
    this.menu_item_class = menu_item_class;

    this.add_menu_control();
  },

  add_menu_control: function() {
    Event.observe(this.control_id, 'click', function(e) {
      this.remove_menu_control_event = this.remove_menu_control.bindAsEventListener(this);
      Event.observe(document, 'click', this.remove_menu_control_event);

      Element.toggle(this.menu_id);
      Position.absolutize(this.menu_id);
      Position.clone(this.control_id, this.menu_id, { setLeft: true, setTop: true, setWidth: false, setHeight: false, offsetTop: 22 });

      if (this.callback) {
        this.callback();
      }

      Event.stop(e);
      return false;
    }.bind(this));

    $($A(document.getElementsByClassName(this.menu_item_class))).each(function(link) {
      Event.observe(link, 'click', function(e) {
        Event.stopObserving(document, 'click', this.remove_menu_control_event);
        Element.hide(this.menu_id);
        Event.stop(e);
        return false;
      }.bind(this));
    }.bind(this));
  },

  remove_menu_control: function(e) {
    var element = Event.element(e);
    if (!element.hasClassName(this.menu_item_class) && element.nodeName != 'INPUT') {
      this.close_menu();
    }
  },

  close_menu: function() {
    Element.hide(this.menu_id);
    Event.stopObserving(document, 'click', this.add_menu_control);
  }
};
var ModelErrors = Class.create({
  initialize: function(objectName, options) {
    this.options = {
      errorTextSelector: '#errorExplanation ul li',
      messageClass: 'popinfo_inner'
    };

    Object.extend(this.options, options || { });
    this.objectName = objectName;

    this.createFieldWarningEvents();
  },

  createFieldWarningEvents: function() {
    $$(this.options.errorTextSelector).each(function(listElement) {
      var errorText = listElement.innerHTML;
      var errorFieldName = errorText.split(' ')[0].toLowerCase();
      var fieldID = this.objectName.toLowerCase() + '_' + errorFieldName;

      if ($(fieldID)) {
        Event.observe(fieldID, 'focus', function() { this.showError(fieldID, errorText); }.bind(this));
        Event.observe(fieldID, 'blur',  function() { this.removeError(fieldID, errorText); }.bind(this));
      }
    }.bind(this));
  },

  showError: function(fieldID, errorText) {
    var messageID = fieldID + '_error';

    if ($(messageID)) {
      return;
    }

    $(fieldID).insert({ before: '<div class="model_error" id="#{messageID}"><div class="#{messageClass}">#{message}</div><div class="popinfo_image"></div></div>'.interpolate({ messageID: messageID, messageClass: this.options.messageClass, message: errorText }) });
    $(messageID).clonePosition($(fieldID));
  },

  removeError: function(fieldID, errorText) {
    var messageElement = $(fieldID + '_error');
    if (messageElement) {
      messageElement.remove();
    }
  }
});
/* User preferences */
var Preferences = new Object();
Preferences.Methods = {
  save_dashboard_table_view_setting: function(setting) {
    new Ajax.Request('/preferences/dashboard/view', {method:'post', postBody:'view=' + setting});
  },

  save_client_view_setting: function(view, client_id) {
    new Ajax.Request('/preferences/clients/view', {method:'post', postBody:'view=' + view + '&client_id=' + client_id});
  }
};
Object.extend(Preferences, Preferences.Methods);
Toggler = Class.create();
Toggler.prototype = {
  initialize: function(control_id, target_id, save_callback) {
    this.control = $(control_id);
    this.target = $(target_id);
    this.class_open = 'destroy';
    this.class_closed = 'create';

    this.state = this.target.visible();

    this.change_classes = true;
    this.cancel_text = 'Close';
    this.original_text = this.control.innerHTML;

    if (save_callback) this.save_callback = save_callback.bind(this);

    this.bound_event = this.on_click.bindAsEventListener(this);
  },

  show: function() {
    this.state = true;
    this.control.innerHTML = this.cancel_text;

    if (this.change_classes) {
      this.control.removeClassName(this.class_closed);
      this.control.addClassName(this.class_open);
    }

    if (!this.control.hasClassName('noeffect')) {
      new Effect.Appear(this.target, {duration: 0.3});
    } else {
      this.target.show();
    }

    setTimeout(this.select_first_field.bind(this), 500);
    if (this.save_callback) this.save_callback();
  },

  hide: function() {
    this.state = false;
    this.control.innerHTML = this.original_text;

    if (this.change_classes) {
      this.control.addClassName(this.class_closed);
      this.control.removeClassName(this.class_open);
    }
    this.target.hide();
    if (this.save_callback) this.save_callback();
  },

  select_first_field: function() {
    if (this.target.nodeName == 'FORM') {
      this.target.focusFirstElement();
      return true;
    } else {
      try {
        var forms = $$('#' + this.target.id + ' form');
        if (forms.length > 0) {
          forms.first().focusFirstElement();
          return true;
        }
      } catch (exception) {
        return false;
      }

      return false;
    }
  },

  toggle: function() {
    this.state ? this.hide() : this.show();
  },

  add_event: function() {
    Event.observe(this.control, 'click', this.bound_event);
  },

  remove_event: function() {
    Event.stopObserving(this.control, 'click', this.bound_event);
  },

  on_click: function(e) {
    this.toggle();
    Event.stop(e);
    return false;
  }
};
function ie6_is_the_bane_of_my_life()
{
  var version = parseFloat(navigator.appVersion.split('MSIE')[1])

  if ((version >= 5.5) && (version < 7) && (document.body.filters))
  {
    $$('.ie-fix-opacity').each(function(element)
    {
      var image = element.down('img')

      element.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + image.src + "', sizingMethod='scale', opacity=0)"
      element.style.height = image.height + 'px'
      element.style.width = image.width + 'px'
      element.style.display = 'block'
      Element.remove(image)
    })
  }
}

function image_popups()
{
  new Azuki.Windowing.Lightbox('popup')
}

Event.observe(window, 'load', function()
{
  if ($('search_user_time_zone'))
  {
    new Azuki.Forms.SelectSearch('search_user_time_zone', 'user_time_zone')
  }

  Azuki.Helpers.Forms.disable_on_submit()
  ie6_is_the_bane_of_my_life()
  image_popups()
})