/*
 * default
 * Copyright(c) 2006, Jack Slocum.
 * 
 * This code is licensed under BSD license. Use it as you wish, 
 * but keep this copyright intact.
 */

/*
  /js/prototype.js 
*/
/*  Prototype JavaScript framework, version 1.6.0.3

 *  (c) 2005-2008 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: '1.6.0.3',



  Browser: {

    IE:     !!(window.attachEvent &&

      navigator.userAgent.indexOf('Opera') === -1),

    Opera:  navigator.userAgent.indexOf('Opera') > -1,

    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,

    SelectorsAPI: !!document.querySelector,

    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 = (function(m) {

          return function() { return ancestor[m].apply(this, arguments) };

        })(property).wrap(method);



        value.valueOf = method.valueOf.bind(method);

        value.toString = method.toString.bind(method);

      }

      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() : String(object);

    } 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 != null && typeof object == "object" &&

      'splice' in object && 'join' in object;

  },



  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]

      .replace(/\s+/g, '').split(',');

    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);

  },



  defer: function() {

    var args = [0.01].concat($A(arguments));

    return this.delay.apply(this, args);

  },



  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)));

    };

  }

});



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.stripTags().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('')

});



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

    });

  }

});

Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;



var $break = { };



var Enumerable = {

  each: function(iterator, context) {

    var index = 0;

    try {

      this._each(function(value) {

        iterator.call(context, value, index++);

      });

    } catch (e) {

      if (e != $break) throw e;

    }

    return this;

  },



  eachSlice: function(number, iterator, context) {

    var index = -number, slices = [], array = this.toArray();

    if (number < 1) return array;

    while ((index += number) < array.length)

      slices.push(array.slice(index, index+number));

    return slices.collect(iterator, context);

  },



  all: function(iterator, context) {

    iterator = iterator || Prototype.K;

    var result = true;

    this.each(function(value, index) {

      result = result && !!iterator.call(context, value, index);

      if (!result) throw $break;

    });

    return result;

  },



  any: function(iterator, context) {

    iterator = iterator || Prototype.K;

    var result = false;

    this.each(function(value, index) {

      if (result = !!iterator.call(context, value, index))

        throw $break;

    });

    return result;

  },



  collect: function(iterator, context) {

    iterator = iterator || Prototype.K;

    var results = [];

    this.each(function(value, index) {

      results.push(iterator.call(context, value, index));

    });

    return results;

  },



  detect: function(iterator, context) {

    var result;

    this.each(function(value, index) {

      if (iterator.call(context, value, index)) {

        result = value;

        throw $break;

      }

    });

    return result;

  },



  findAll: function(iterator, context) {

    var results = [];

    this.each(function(value, index) {

      if (iterator.call(context, value, index))

        results.push(value);

    });

    return results;

  },



  grep: function(filter, iterator, context) {

    iterator = iterator || Prototype.K;

    var results = [];



    if (Object.isString(filter))

      filter = new RegExp(filter);



    this.each(function(value, index) {

      if (filter.match(value))

        results.push(iterator.call(context, 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) {

    this.each(function(value, index) {

      memo = iterator.call(context, 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 || Prototype.K;

    var result;

    this.each(function(value, index) {

      value = iterator.call(context, value, index);

      if (result == null || value >= result)

        result = value;

    });

    return result;

  },



  min: function(iterator, context) {

    iterator = iterator || Prototype.K;

    var result;

    this.each(function(value, index) {

      value = iterator.call(context, value, index);

      if (result == null || value < result)

        result = value;

    });

    return result;

  },



  partition: function(iterator, context) {

    iterator = iterator || Prototype.K;

    var trues = [], falses = [];

    this.each(function(value, index) {

      (iterator.call(context, 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) {

    var results = [];

    this.each(function(value, index) {

      if (!iterator.call(context, value, index))

        results.push(value);

    });

    return results;

  },



  sortBy: function(iterator, context) {

    return this.map(function(value, index) {

      return {

        value: value,

        criteria: iterator.call(context, 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 || 0, results = new Array(length);

  while (length--) results[length] = iterable[length];

  return results;

}



if (Prototype.Browser.WebKit) {

  $A = function(iterable) {

    if (!iterable) return [];

    // In Safari, only use the `toArray` method if it's not a NodeList.

    // A NodeList is a function, has an function `item` property, and a numeric

    // `length` property. Adapted from Google Doctype.

    if (!(typeof iterable === 'function' && typeof iterable.length ===

        'number' && typeof iterable.item === 'function') && iterable.toArray)

      return iterable.toArray();

    var length = iterable.length || 0, 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(', ') + ']';

  }

});



// use native browser JS 1.6 implementation if available

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, context) {

    $R(0, this, true).each(iterator, context);

    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) {

      // simulating poorly supported hasOwnProperty

      if (this._object[key] !== Object.prototype[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.inject([], function(results, pair) {

        var key = encodeURIComponent(pair.key), values = pair.value;



        if (values && typeof values == 'object') {

          if (Object.isArray(values))

            return results.concat(values.map(toQueryPair.curry(key)));

        } else results.push(toQueryPair(key, values));

        return results;

      }).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)) {

      // simulate other verbs over post

      params['_method'] = this.method;

      this.method = 'post';

    }



    this.parameters = params;



    if (params = Object.toQueryString(params)) {

      // when GET, append parameters to URL

      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';

    }



    // user-defined headers

    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 && this.isSameOrigin() && 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') {

      // avoid memory leak in MSIE: clean up

      this.transport.onreadystatechange = Prototype.emptyFunction;

    }

  },



  isSameOrigin: function() {

    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);

    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({

      protocol: location.protocol,

      domain: document.domain,

      port: location.port ? ':' + location.port : ''

    }));

  },



  getHeader: function(name) {

    try {

      return this.transport.getResponseHeader(name) || null;

    } 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 ||

        !this.request.isSameOrigin());

    } 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 ||

        !this.request.isSameOrigin());

    } 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) {

  // DOM level 2 ECMAScript Language Binding

  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 || { });

  if (element) this.Element.prototype = element.prototype;

}).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 = $(element);

    element.style.display = 'none';

    return element;

  },



  show: function(element) {

    element = $(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, insert, tagName, childNodes;



    for (var position in insertions) {

      content  = insertions[position];

      position = position.toLowerCase();

      insert = Element._insertionTranslations[position];



      if (content && content.toElement) content = content.toElement();

      if (Object.isElement(content)) {

        insert(element, content);

        continue;

      }



      content = Object.toHTML(content);



      tagName = ((position == 'before' || position == 'after')

        ? element.parentNode : element).tagName.toUpperCase();



      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());



      if (position == 'top' || position == 'after') childNodes.reverse();

      childNodes.each(insert.curry(element));



      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).select("*");

  },



  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 Object.isNumber(expression) ? ancestors[expression] :

      Selector.findElement(ancestors, expression, index);

  },



  down: function(element, expression, index) {

    element = $(element);

    if (arguments.length == 1) return element.firstDescendant();

    return Object.isNumber(expression) ? element.descendants()[expression] :

      Element.select(element, expression)[index || 0];

  },



  previous: function(element, expression, index) {

    element = $(element);

    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));

    var previousSiblings = element.previousSiblings();

    return Object.isNumber(expression) ? previousSiblings[expression] :

      Selector.findElement(previousSiblings, expression, index);

  },



  next: function(element, expression, index) {

    element = $(element);

    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));

    var nextSiblings = element.nextSiblings();

    return Object.isNumber(expression) ? nextSiblings[expression] :

      Selector.findElement(nextSiblings, expression, index);

  },



  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);

  },



  // removes whitespace-only text node children

  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);



    if (element.compareDocumentPosition)

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



    if (ancestor.contains)

      return ancestor.contains(element) && ancestor !== element;



    while (element = element.parentNode)

      if (element == ancestor) 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 || value == 'auto') {

      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};



    // All *Width and *Height properties give 0 on elements with display none,

    // so enable the element temporarily

    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';

      // Opera returns the offset relative to the positioning context, when an

      // element is position relative but top and left have not been defined

      if (Prototype.Browser.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.toUpperCase() == 'BODY') break;

        var p = Element.getStyle(element, 'position');

        if (p !== 'static') break;

      }

    } while (element);

    return Element._returnOffset(valueL, valueT);

  },



  absolutize: function(element) {

    element = $(element);

    if (element.getStyle('position') == 'absolute') return element;

    // Position.prepare(); // To be done manually by Scripty when it needs it.



    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;

    // Position.prepare(); // To be done manually by Scripty when it needs it.



    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;



      // Safari fix

      if (element.offsetParent == document.body &&

        Element.getStyle(element, 'position') == 'absolute') break;



    } while (element = element.offsetParent);



    element = forElement;

    do {

      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == '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] || { });



    // find page position of source

    source = $(source);

    var p = source.viewportOffset();



    // find coordinate system to use

    element = $(element);

    var delta = [0, 0];

    var parent = null;

    // delta [0,0] will do fine with position: fixed elements,

    // position:absolute needs offsetParent deltas

    if (Element.getStyle(element, 'position') == 'absolute') {

      parent = element.getOffsetParent();

      delta = parent.viewportOffset();

    }



    // correct by body offsets (fixes Safari)

    if (parent == document.body) {

      delta[0] -= document.body.offsetLeft;

      delta[1] -= document.body.offsetTop;

    }



    // set position

    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 (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':

          // returns '0px' for hidden elements; we want it to return null

          if (!Element.visible(element)) return null;



          // returns the border-box dimensions rather than the content-box

          // dimensions, so we subtract padding and borders from the value

          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) {

  // IE doesn't report offsets correctly for static elements, so we change them

  // to "relative" to get the values, then change them back.

  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(

    function(proceed, element) {

      element = $(element);

      // IE throws an error if element is not in document

      try { element.offsetParent }

      catch(e) { return $(document.body) }

      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;

    }

  );



  $w('positionedOffset viewportOffset').each(function(method) {

    Element.Methods[method] = Element.Methods[method].wrap(

      function(proceed, element) {

        element = $(element);

        try { element.offsetParent }

        catch(e) { return Element._returnOffset(0,0) }

        var position = element.getStyle('position');

        if (position !== 'static') return proceed(element);

        // Trigger hasLayout on the offset parent so that IE6 reports

        // accurate offsetTop and offsetLeft values for position: fixed.

        var offsetParent = element.getOffsetParent();

        if (offsetParent && offsetParent.getStyle('position') === 'fixed')

          offsetParent.setStyle({ zoom: 1 });

        element.setStyle({ position: 'relative' });

        var value = proceed(element);

        element.setStyle({ position: position });

        return value;

      }

    );

  });



  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(

    function(proceed, element) {

      try { element.offsetParent }

      catch(e) { return Element._returnOffset(0,0) }

      return proceed(element);

    }

  );



  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.extend({

      cellpadding: 'cellPadding',

      cellspacing: 'cellSpacing'

    }, 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 frameBorder').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.toUpperCase() == 'IMG' && element.width) {

        element.width++; element.width--;

      } else try {

        var n = document.createTextNode(' ');

        element.appendChild(n);

        element.removeChild(n);

      } catch (e) { }



    return element;

  };



  // Safari returns margins on body which is incorrect if the child is absolutely

  // positioned.  For performance reasons, redefine Element#cumulativeOffset for

  // KHTML/WebKit only.

  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) {

  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements

  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 ('outerHTML' in document.createElement('div')) {

  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];

  if (t) {

    div.innerHTML = t[0] + html + t[1];

    t[2].times(function() { div = div.firstChild });

  } else div.innerHTML = html;

  return $A(div.childNodes);

};



Element._insertionTranslations = {

  before: function(element, node) {

    element.parentNode.insertBefore(node, element);

  },

  top: function(element, node) {

    element.insertBefore(node, element.firstChild);

  },

  bottom: function(element, node) {

    element.appendChild(node);

  },

  after: function(element, node) {

    element.parentNode.insertBefore(node, element.nextSibling);

  },

  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() {

  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.toUpperCase(), property, value;



    // extend methods for specific tags

    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() {

      // extend methods for all tags (Safari doesn't need this)

      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 = { }, B = Prototype.Browser;

    $w('width height').each(function(d) {

      var D = d.capitalize();

      if (B.WebKit && !document.evaluate) {

        // Safari <3.0 needs self.innerWidth/Height

        dimensions[d] = self['inner' + D];

      } else if (B.Opera && parseFloat(window.opera.version()) < 9.5) {

        // Opera <9.5 needs document.body.clientWidth/Height

        dimensions[d] = document.body['client' + D]

      } else {

        dimensions[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();



    if (this.shouldUseSelectorsAPI()) {

      this.mode = 'selectorsAPI';

    } else if (this.shouldUseXPath()) {

      this.mode = 'xpath';

      this.compileXPathMatcher();

    } else {

      this.mode = "normal";

      this.compileMatcher();

    }



  },



  shouldUseXPath: function() {

    if (!Prototype.BrowserFeatures.XPath) return false;



    var e = this.expression;



    // Safari 3 chokes on :*-of-type and :empty

    if (Prototype.Browser.WebKit &&

     (e.include("-of-type") || e.include(":empty")))

      return false;



    // XPath can't do namespaced attributes, nor can it read

    // the "checked" property from DOM nodes

    if ((/(\[[\w-]*?:|:checked)/).test(e))

      return false;



    return true;

  },



  shouldUseSelectorsAPI: function() {

    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;



    if (!Selector._div) Selector._div = new Element('div');



    // Make sure the browser treats the selector as valid. Test on an

    // isolated element to minimize cost of this check.

    try {

      Selector._div.querySelector(this.expression);

    } catch(e) {

      return false;

    }



    return true;

  },



  compileMatcher: function() {

    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;

    var e = this.expression, results;



    switch (this.mode) {

      case 'selectorsAPI':

        // querySelectorAll queries document-wide, then filters to descendants

        // of the context element. That's not what we want.

        // Add an explicit context to the selector if necessary.

        if (root !== document) {

          var oldId = root.id, id = $(root).identify();

          e = "#" + id + " " + e;

        }



        results = $A(root.querySelectorAll(e)).map(Element.extend);

        root.id = oldId;



        return results;

      case 'xpath':

        return document._getElementsByXPath(this.xpath, root);

      default:

       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)) {

          // use the Selector.assertions methods unless the selector

          // is too complex.

          if (as[i]) {

            this.tokens.push([i, Object.clone(m)]);

            e = e.replace(m[0], '');

          } else {

            // reluctantly do a document-wide search

            // and look for a match in the array

            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)]",

      'checked':     "[@checked]",

      'disabled':    "[(@disabled) and (@type!='hidden')]",

      'enabled':     "[not(@disabled) and (@type!='hidden')]",

      '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); c = false;',

    attr: function(m) {

      m[3] = (m[5] || m[6]);

      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); 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: {

    // combinators must be listed first

    // (and descendant needs to be last combinator)

    laterSibling: /^\s*~\s*/,

    child:        /^\s*>\s*/,

    adjacent:     /^\s*\+\s*/,

    descendant:   /^\s/,



    // selectors follow

    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: /^\[((?:[\w]+:)?[\w]+)\]/,

    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/

  },



  // for Selector.match and Element#match

  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 nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);

    }

  },



  handlers: {

    // UTILITY FUNCTIONS

    // joins two collections

    concat: function(a, b) {

      for (var i = 0, node; node = b[i]; i++)

        a.push(node);

      return a;

    },



    // marks an array of nodes for counting

    mark: function(nodes) {

      var _true = Prototype.emptyFunction;

      for (var i = 0, node; node = nodes[i]; i++)

        node._countedByPrototype = _true;

      return nodes;

    },



    unmark: function(nodes) {

      for (var i = 0, node; node = nodes[i]; i++)

        node._countedByPrototype = undefined;

      return nodes;

    },



    // mark each child node with its position (for nth calls)

    // "ofType" flag indicates whether we're indexing for nth-of-type

    // rather than nth-child

    index: function(parentNode, reverse, ofType) {

      parentNode._countedByPrototype = Prototype.emptyFunction;

      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._countedByPrototype)) node.nodeIndex = j++;

        }

      } else {

        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)

          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;

      }

    },



    // filters out duplicates and extends all nodes

    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])._countedByPrototype) {

          n._countedByPrototype = Prototype.emptyFunction;

          results.push(Element.extend(n));

        }

      return Selector.handlers.unmark(results);

    },



    // COMBINATOR FUNCTIONS

    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;

    },



    // TOKEN FUNCTIONS

    tagName: function(nodes, root, tagName, combinator) {

      var uTagName = tagName.toUpperCase();

      var results = [], h = Selector.handlers;

      if (nodes) {

        if (combinator) {

          // fastlane for ordinary descendant combinators

          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() === uTagName) 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, combinator) {

      if (!nodes) nodes = root.getElementsByTagName("*");

      if (nodes && combinator) nodes = this[combinator](nodes);

      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, combinator) {

      if (!nodes) nodes = root.getElementsByTagName("*");

      if (nodes && combinator) nodes = this[combinator](nodes);

      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);

    },



    // handles the an+b logic

    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;

      });

    },



    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type

    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._countedByPrototype) {

          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++) {

        // IE treats comments as element nodes

        if (node.tagName == '!' || node.firstChild) 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._countedByPrototype) 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 && (!node.type || node.type !== 'hidden'))

          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 == v || nv && nv.startsWith(v); },

    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },

    '*=': function(nv, v) { return nv == v || nv && nv.include(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() + '-'); }

  },



  split: function(expression) {

    var expressions = [];

    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {

      expressions.push(m[1].strip());

    });

    return expressions;

  },



  matchElements: function(elements, expression) {

    var matches = $$(expression), h = Selector.handlers;

    h.mark(matches);

    for (var i = 0, results = [], element; element = elements[i]; i++)

      if (element._countedByPrototype) 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) {

    expressions = Selector.split(expressions.join(','));

    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) {

  Object.extend(Selector.handlers, {

    // IE returns comment nodes on getElementsByTagName("*").

    // Filter them out.

    concat: function(a, b) {

      for (var i = 0, node; node = b[i]; i++)

        if (node.tagName !== "!") a.push(node);

      return a;

    },



    // IE improperly serializes _countedByPrototype in (inner|outer)HTML.

    unmark: function(nodes) {

      for (var i = 0, node; node = nodes[i]; i++)

        node.removeAttribute('_countedByPrototype');

      return nodes;

    }

  });

}



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 != 'file' && (element.type != 'submit' || (!submitted &&

            submit !== false && (!submit || key == submit) && (submitted = true)))) {

          if (key in result) {

            // a key is already present; construct an array of values

            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.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, value) {

    if (Object.isUndefined(value))

      return this[element.type == 'select-one' ?

        'selectOne' : 'selectMany'](element);

    else {

      var opt, currentValue, single = !Object.isArray(value);

      for (var i = 0, length = element.length; i < length; i++) {

        opt = element.options[i];

        currentValue = this.optionValue(opt);

        if (single) {

          if (currentValue == value) {

            opt.selected = true;

            return;

          }

        }

        else opt.selected = value.include(currentValue);

      }

    }

  },



  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) {

    // extend element because hasAttribute may not be native

    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) {

      event = Event.extend(event);



      var node          = event.target,

          type          = event.type,

          currentTarget = event.currentTarget;



      if (currentTarget && currentTarget.tagName) {

        // Firefox screws up the "click" event when moving between radio buttons

        // via arrow keys. It also screws up the "load" and "error" events on images,

        // reporting the document as the target instead of the original image.

        if (type === 'load' || type === 'error' ||

          (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'

            && currentTarget.type === 'radio'))

              node = currentTarget;

      }

      if (node.nodeType == Node.TEXT_NODE) node = node.parentNode;

      return Element.extend(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) {

      var docElement = document.documentElement,

      body = document.body || { scrollLeft: 0, scrollTop: 0 };

      return {

        x: event.pageX || (event.clientX +

          (docElement.scrollLeft || body.scrollLeft) -

          (docElement.clientLeft || 0)),

        y: event.pageY || (event.clientY +

          (docElement.scrollTop || body.scrollTop) -

          (docElement.clientTop || 0))

      };

    },



    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._prototypeEventID) return element._prototypeEventID[0];

    arguments.callee.id = arguments.callee.id || 1;

    return element._prototypeEventID = [++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;

  }





  // Internet Explorer needs to remove event handlers on page unload

  // in order to avoid memory leaks.

  if (window.attachEvent) {

    window.attachEvent("onunload", destroyCache);

  }



  // Safari has a dummy event handler on page unload so that it won't

  // use its bfcache. Safari <= 3.1 has an issue with restoring the "document"

  // object when page is returned to via the back button using its bfcache.

  if (Prototype.Browser.WebKit) {

    window.addEventListener('unload', Prototype.emptyFunction, false);

  }



  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;



      var event;

      if (document.createEvent) {

        event = document.createEvent("HTMLEvents");

        event.initEvent("dataavailable", true, true);

      } else {

        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(),

  loaded:        false

});



(function() {

  /* Support for the DOMContentLoaded event is based on work by Dan Webb,

     Matthias Miller, Dean Edwards and John Resig. */



  var timer;



  function fireContentLoadedEvent() {

    if (document.loaded) return;

    if (timer) window.clearInterval(timer);

    document.fire("dom:loaded");

    document.loaded = 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');



// This should be moved to script.aculo.us; notice the deprecated methods

// further below, that map to the newer Element methods.

var Position = {

  // set to true if needed, warning: firefox performance problems

  // NOT neeeded for page scrolling, only if draggable contained in

  // scrollable elements

  includeScrollOffsets: false,



  // must be called before calling withinIncludingScrolloffset, every time the

  // page is scrolled

  prepare: function() {

    this.deltaX =  window.pageXOffset

                || document.documentElement.scrollLeft

                || document.body.scrollLeft

                || 0;

    this.deltaY =  window.pageYOffset

                || document.documentElement.scrollTop

                || document.body.scrollTop

                || 0;

  },



  // caches x/y coordinate pair to use with overlap

  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);

  },



  // within must be called directly before

  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;

  },



  // Deprecation layer -- use newer Element methods now (1.5.2).



  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();




/*
  /js/management/prototype.1.6.0.3/scriptaculous.1.8.2/effect.js
 */


// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//  Justin Palmer (http://encytemedia.com/)
//  Mark Pilgrim (http://diveintomark.org/)
//  Martin Bialasinki
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

// converts rgb() and #xxx to #xxxxxx format,
// returns self (or first argument) if not convertable
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) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    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':
        // move unstarted effects after this effect
        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':
        // start effect after last queued effect has finished
        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) {
    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;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, '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);
    // make this work on IE on elements without 'layout'
    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'
    });
  }
});

// for backwards compatibility
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() {
    // Prevent executing on elements not in the layout flow
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    // Disable background image during the effect
    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');
    // init color calculations
    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();

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

  return new Effect.Tween(null,
    scrollOffsets.top,
    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,
  // force Safari to render floated elements properly
  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();
  // SlideDown need to have the content of the element wrapped in a container element with fixed height!
  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] || { })
  );
};

// Bug in opera makes the TD containing this element expand for a instance after finish
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] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  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(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.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);








/*
  /js/management/prototype.1.6.0.3/scriptaculous.1.8.2/dragdrop.js
 */

// Copyright (c) 2005-2008 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
//           (c) 2005-2008 Sammi Williams (http://www.oriontransfer.co.nz, sammi@oriontransfer.co.nz)
//
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/

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] || { });

    // cache containers
    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)];
    // Mozilla-based browsers fire successive mousemove events with
    // the same coordinates, prevent needless redrawing (moz bug?)
    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)) {
      // abort on form elements, fixes a Firefox issue
      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._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this._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);
    }

    // fix AppleWebKit rendering
    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._originallyAbsolute)
        Position.relativize(this.element);
      delete this._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){
    element = $(element);
    var s = Sortable.sortables[element.id];

    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,

      // these take arrays of elements or ids and can be
      // used for better initialization performance
      elements:    false,
      handles:     false,

      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    // clear any old sortable with same element
    this.destroy(element);

    // build options for the draggables
    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;

    // build options for the droppables
    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
    };

    // fix for gecko engine
    Element.cleanWhitespace(element);

    options.draggables = [];
    options.droppables = [];

    // drop on empty handling
    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);
      });
    }

    // keep reference
    this.sortables[element.id] = options;

    // for onupdate
    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  // return all suitable-for-sortable elements in a guaranteed order
  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) {
    // mark on ghosting only
    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('&');
    }
  }
};

// Returns true if child is contained within element
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')];
};




/*
  /js/default.js
 */
var default_font_size='12px';function font_start(){Font.start();}
function font_default(){Font.reset();}
function font_larger(){Font.enlarge();}
function font_smaller(){Font.minify();}
function font_set(size){Font.set(size);}
function getCookie(name){return Cookie.get(name);}
function setCookie(name,value){Cookie.expireInMonth(name,value);}
var Font={_defaultSize:14,_cookieName:'body_font_size',_set:function(size){size=parseInt(size);document.body.style.fontSize=size+'px';Cookie.expireInMonth(this._cookieName,size);},start:function(){this._set(Cookie.get(this._cookieName)||default_font_size);},reset:function(){this._set(default_font_size);},enlarge:function(){this._set(parseInt(document.body.style.fontSize)+2);},minify:function(){this._set(parseInt(document.body.style.fontSize)-2);},set:function(size){this._set(size);}};var Cookie={get:function(name){var match=('; '+document.cookie+';').match('; '+encodeURIComponent(name)+'=(.*?);');return match?decodeURIComponent(match[1]):'';},set:function(name,value,expires,path,domain,secure){var buffer=encodeURIComponent(name)+'='+encodeURIComponent(value);if(typeof expires!='undefined')buffer+='; expires='+new Date(expires).toUTCString();if(typeof path!='undefined')buffer+='; path='+path;if(typeof domain!='undefined')buffer+='; domain='+domain;if(secure)buffer+='; secure';document.cookie=buffer;},expireInMonth:function(name,value){this.set(name,value,(new Date()).getTime()+1000*60*60*24*30,'/');}};function preloadImages(){var d=document,fn=function(img,src){img.src=src;return img;};if(!d.images)return;if(!d.MM_p)d.MM_p=[];for(var i=0,l=arguments.length;i<l;i++)
if(arguments[i].indexOf('#')!=0)d.MM_p.push(fn(new Image(),arguments[i]));}
function findObj(n,d){var p,i,x;if(!d)d=document;if((p=n.indexOf("?"))>0&&parent.frames.length){d=parent.frames[n.substring(p+1)].document;n=n.substring(0,p);}
if(!(x=d[n])&&d.all)x=d.all[n];for(i=0;!x&&i<d.forms.length;i++)
x=d.forms[i][n];for(i=0;!x&&d.layers&&i<d.layers.length;i++)
x=findObj(n,d.layers[i].document);return x;}
function swapImage(){var i,j=0,x,a=swapImage.arguments;document.sr=new Array;for(i=0;i<(a.length-2);i+=3)
if((x=findObj(a[i]))){document.sr[j++]=x;if(!x.oSrc)x.oSrc=x.src;x.src=a[i+2];}}
function swapImgRestore(){var i,x,a=document.sr;for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++)
x.src=x.oSrc;}
function display(obj){$(obj).toggle();}
function openWindow(url){location.href=url;}
function AllChecked(check,form,ele){if(!form)return;var cb=form.elements[ele];if(!cb)return;if(!cb.length){cb=[cb];}
for(var i=0;i<cb.length;i++){if(!cb[i].disabled){cb[i].checked=check;}}}
function SPAW_shiftDesign(editor){if(document.getElementById('SPAW_'+editor+'_editor_mode')){var mode=document.getElementById('SPAW_'+editor+'_editor_mode').value;if(mode!='design'){SPAW_design_tab_click(editor,null);}}}
function changeHankaku(elm,mode){if(elm.value=='')return;var value=elm.value.replace(/[／-：]/g,function(s){return String.fromCharCode(s.charCodeAt(0)-65248);}).replace(/[ー？―‐]/g,'-');var test=function(test,message){if(test)elm.value=value;else window.alert(message);};switch(mode){case'number':test(!isNaN(value),'半角数字で入力してください。');break;case'date':test(value.match(/^\d{4}(\/\d{1,2}){2}$/),'｢/｣区切りの半角数字で入力してください。\n例:1970/01/01');break;case'time':test(value.match(/^\d{1,2}(:\d{1,2}){1,2}$/),'｢:｣区切りの半角数字で入力してください。\n例:09:00');break;case'tel':test(value.match(/^[\d-]+$/),'｢-｣区切りの半角数字で入力してください。\n例:00-0000-0000');break;}}
function getModuleData(module_type,contents_type,data_kbn,callback,args){var pars={module_type:module_type,data_kbn:data_kbn};if(contents_type!='')pars.contents_type=contents_type;new Ajax.Request('/js/getModuleData.php',{method:'get',parameters:$H(pars),onComplete:function(x){callback(eval(x.responseText),args);}});}
function hover(elm,f,g){var handler=(function(e){switch(e.type){case'mouseover':var p=e.relatedTarget||e.fromElement;do if(!p||p==this)return;while(p=p.parentNode);return f.call(this,e);case'mouseout':var p=e.relatedTarget||e.toElement;do if(!p||p==this)return;while(p=p.parentNode);return g.call(this,e);}}).bindAsEventListener(elm)
return $(elm).observe('mouseover',handler).observe('mouseout',handler);}
function onReady(callback){if(onReady._ready)callback();else Event.observe(window,'load',function(){onReady._ready=true;callback();});}
function swapSibling(d,ele){ele=$(ele);var target=getTarget(d,ele);if(!target){return false;}
if(d<0){ele.parentNode.insertBefore(ele,target);}
else{ele.parentNode.insertBefore(target,ele);}
function getTarget(d,ele){var prop=(d<0)?'previousSibling':'nextSibling';var sib=ele[prop];for(var sib=ele[prop];sib!=null;sib=sib[prop]){if(ele.tagName==sib.tagName){return sib;}}
return null;}}
var DUI=DUI||{};DUI.calendar=DUI.calendar||{};DUI.calendar.PopupWindow=function(cfg){var ycal=new YAHOO.widget.Calendar(cfg.tableId,cfg.boxId,{title:cfg.title||'aaa',close:true,START_WEEKDAY:0});ycal.buildMonthLabel=function(){var pageDate=this.cfg.getProperty(YAHOO.widget.Calendar._DEFAULT_CONFIG.PAGEDATE.key);return pageDate.getFullYear()+"\u5E74 "+this.Locale.LOCALE_MONTHS[pageDate.getMonth()];};ycal.cfg.setProperty("MDY_YEAR_POSITION",1);ycal.cfg.setProperty("MDY_MONTH_POSITION",2);ycal.cfg.setProperty("MDY_DAY_POSITION",3);ycal.cfg.setProperty("MY_YEAR_POSITION",1);ycal.cfg.setProperty("MY_MONTH_POSITION",2);ycal.cfg.setProperty("MONTHS_SHORT",["1\u6708","2\u6708","3\u6708","4\u6708","5\u6708","6\u6708","7\u6708","8\u6708","9\u6708","10\u6708","11\u6708","12\u6708"]);ycal.cfg.setProperty("MONTHS_LONG",["1\u6708","2\u6708","3\u6708","4\u6708","5\u6708","6\u6708","7\u6708","8\u6708","9\u6708","10\u6708","11\u6708","12\u6708"]);ycal.cfg.setProperty("WEEKDAYS_1CHAR",["\u65E5","\u6708","\u706B","\u6C34","\u6728","\u91D1","\u571F"]);ycal.cfg.setProperty("WEEKDAYS_SHORT",["\u65E5","\u6708","\u706B","\u6C34","\u6728","\u91D1","\u571F"]);ycal.selectEvent.subscribe(function(type,args,obj){var dates=args[0];var date=dates[0];var year=date[0],month=date[1],day=date[2];$(cfg.textId).value=date[0]+"/"+date[1]+"/"+date[2];ycal.hide();});ycal.render();Event.observe($(cfg.btnId),'click',function(){var s=$(cfg.textId).value;var d=new Date(s.replace(/-/g,'/'));if(isNaN(d.getTime())){ycal.deselectAll();}
else{ycal.select(d);}
var selecteds=ycal.getSelectedDates();ycal.cfg.setProperty("pagedate",(selecteds.length>0)?selecteds[0]:new Date());ycal.render();ycal.show();YAHOO.util.Dom.setXY(cfg.boxId,YAHOO.util.Dom.getXY(cfg.btnId));});}
DUI.i18n={Switcher:function(opt){var obj={init:function(opt){this.box=$('languageSwitcher');if(!this.box){this.box=document.createElement('div');document.body.appendChild(this.box);}
Element.addClassName(this.box,'languageSwitcher');Element.hide(this.box);var ol=document.createElement('ol');this.box.appendChild(ol);var me=this;for(var i in opt.languages){var li=document.createElement('li');li.lang=i;li.appendChild(document.createTextNode(opt.languages[i]));ol.appendChild(li);Event.observe(li,'click',function(e){var item=Event.element(e);DUI.i18n.setLanguage(item.getAttribute('lang'));me.hide();if(opt.changed){opt.changed();}});}},show:function(){var cur=DUI.i18n.getLanguage();var items=this.box.getElementsByTagName('li');for(var i=0;i<items.length;i++){var it=items[i];if(it.getAttribute('lang')==cur){Element.addClassName(it,'selected');}
else{Element.removeClassName(it,'selected');}}
Element.show(this.box);},hide:function(){Element.hide(this.box);}};obj.init(opt);return obj;},getLanguage:function(){return Cookie.get('_lang');},setLanguage:function(lang){Cookie.set('_lang',lang,new Date().getTime()+30*24*60*60*1000,'/');}};