/*
---

script: Core.js

description: The core of MooTools, contains all the base functions and the Native and Hash implementations. Required by all the other scripts.

license: MIT-style license.

copyright: Copyright (c) 2006-2008 [Valerio Proietti](http://mad4milk.net/).

authors: The MooTools production team (http://mootools.net/developers/)

inspiration:
- Class implementation inspired by [Base.js](http://dean.edwards.name/weblog/2006/03/base/) Copyright (c) 2006 Dean Edwards, [GNU Lesser General Public License](http://opensource.org/licenses/lgpl-license.php)
- Some functionality inspired by [Prototype.js](http://prototypejs.org) Copyright (c) 2005-2007 Sam Stephenson, [MIT License](http://opensource.org/licenses/mit-license.php)

provides: [Mootools, Native, Hash.base, Array.each, $util]

...
*/

var MooTools = {
     'version': '1.2.4',
     'build': '0d9113241a90b9cd5643b926795852a2026710d4'
};

var Native = function(options){
     options = options || {};
     var name = options.name;
     var legacy = options.legacy;
     var protect = options.protect;
     var methods = options.implement;
     var generics = options.generics;
     var initialize = options.initialize;
     var afterImplement = options.afterImplement || function(){};
     var object = initialize || legacy;
     generics = generics !== false;

     object.constructor = Native;
     object.$family = {name: 'native'};
     if (legacy && initialize) object.prototype = legacy.prototype;
     object.prototype.constructor = object;

     if (name){
          var family = name.toLowerCase();
          object.prototype.$family = {name: family};
          Native.typize(object, family);
     }

     var add = function(obj, name, method, force){
          if (!protect || force || !obj.prototype[name]) obj.prototype[name] = method;
          if (generics) Native.genericize(obj, name, protect);
          afterImplement.call(obj, name, method);
          return obj;
     };

     object.alias = function(a1, a2, a3){
          if (typeof a1 == 'string'){
               var pa1 = this.prototype[a1];
               if ((a1 = pa1)) return add(this, a2, a1, a3);
          }
          for (var a in a1) this.alias(a, a1[a], a2);
          return this;
     };

     object.implement = function(a1, a2, a3){
          if (typeof a1 == 'string') return add(this, a1, a2, a3);
          for (var p in a1) add(this, p, a1[p], a2);
          return this;
     };

     if (methods) object.implement(methods);

     return object;
};

Native.genericize = function(object, property, check){
     if ((!check || !object[property]) && typeof object.prototype[property] == 'function') object[property] = function(){
          var args = Array.prototype.slice.call(arguments);
          return object.prototype[property].apply(args.shift(), args);
     };
};

Native.implement = function(objects, properties){
     for (var i = 0, l = objects.length; i < l; i++) objects[i].implement(properties);
};

Native.typize = function(object, family){
     if (!object.type) object.type = function(item){
          return ($type(item) === family);
     };
};

(function(){
     var natives = {'Array': Array, 'Date': Date, 'Function': Function, 'Number': Number, 'RegExp': RegExp, 'String': String};
     for (var n in natives) new Native({name: n, initialize: natives[n], protect: true});

     var types = {'boolean': Boolean, 'native': Native, 'object': Object};
     for (var t in types) Native.typize(types[t], t);

     var generics = {
          'Array': ["concat", "indexOf", "join", "lastIndexOf", "pop", "push", "reverse", "shift", "slice", "sort", "splice", "toString", "unshift", "valueOf"],
          'String': ["charAt", "charCodeAt", "concat", "indexOf", "lastIndexOf", "match", "replace", "search", "slice", "split", "substr", "substring", "toLowerCase", "toUpperCase", "valueOf"]
     };
     for (var g in generics){
          for (var i = generics[g].length; i--;) Native.genericize(natives[g], generics[g][i], true);
     }
})();

var Hash = new Native({

     name: 'Hash',

     initialize: function(object){
          if ($type(object) == 'hash') object = $unlink(object.getClean());
          for (var key in object) this[key] = object[key];
          return this;
     }

});

Hash.implement({

     forEach: function(fn, bind){
          for (var key in this){
               if (this.hasOwnProperty(key)) fn.call(bind, this[key], key, this);
          }
     },

     getClean: function(){
          var clean = {};
          for (var key in this){
               if (this.hasOwnProperty(key)) clean[key] = this[key];
          }
          return clean;
     },

     getLength: function(){
          var length = 0;
          for (var key in this){
               if (this.hasOwnProperty(key)) length++;
          }
          return length;
     }

});

Hash.alias('forEach', 'each');

Array.implement({

     forEach: function(fn, bind){
          for (var i = 0, l = this.length; i < l; i++) fn.call(bind, this[i], i, this);
     }

});

Array.alias('forEach', 'each');

function $A(iterable){
     if (iterable.item){
          var l = iterable.length, array = new Array(l);
          while (l--) array[l] = iterable[l];
          return array;
     }
     return Array.prototype.slice.call(iterable);
};

function $arguments(i){
     return function(){
          return arguments[i];
     };
};

function $chk(obj){
     return !!(obj || obj === 0);
};

function $clear(timer){
     clearTimeout(timer);
     clearInterval(timer);
     return null;
};

function $defined(obj){
     return (obj != undefined);
};

function $each(iterable, fn, bind){
     var type = $type(iterable);
     ((type == 'arguments' || type == 'collection' || type == 'array') ? Array : Hash).each(iterable, fn, bind);
};

function $empty(){};

function $extend(original, extended){
     for (var key in (extended || {})) original[key] = extended[key];
     return original;
};

function $H(object){
     return new Hash(object);
};

function $lambda(value){
     return ($type(value) == 'function') ? value : function(){
          return value;
     };
};

function $merge(){
     var args = Array.slice(arguments);
     args.unshift({});
     return $mixin.apply(null, args);
};

function $mixin(mix){
     for (var i = 1, l = arguments.length; i < l; i++){
          var object = arguments[i];
          if ($type(object) != 'object') continue;
          for (var key in object){
               var op = object[key], mp = mix[key];
               mix[key] = (mp && $type(op) == 'object' && $type(mp) == 'object') ? $mixin(mp, op) : $unlink(op);
          }
     }
     return mix;
};

function $pick(){
     for (var i = 0, l = arguments.length; i < l; i++){
          if (arguments[i] != undefined) return arguments[i];
     }
     return null;
};

function $random(min, max){
     return Math.floor(Math.random() * (max - min + 1) + min);
};

function $splat(obj){
     var type = $type(obj);
     return (type) ? ((type != 'array' && type != 'arguments') ? [obj] : obj) : [];
};

var $time = Date.now || function(){
     return +new Date;
};

function $try(){
     for (var i = 0, l = arguments.length; i < l; i++){
          try {
               return arguments[i]();
          } catch(e){}
     }
     return null;
};

function $type(obj){
     if (obj == undefined) return false;
     if (obj.$family) return (obj.$family.name == 'number' && !isFinite(obj)) ? false : obj.$family.name;
     if (obj.nodeName){
          switch (obj.nodeType){
               case 1: return 'element';
               case 3: return (/\S/).test(obj.nodeValue) ? 'textnode' : 'whitespace';
          }
     } else if (typeof obj.length == 'number'){
          if (obj.callee) return 'arguments';
          else if (obj.item) return 'collection';
     }
     return typeof obj;
};

function $unlink(object){
     var unlinked;
     switch ($type(object)){
          case 'object':
               unlinked = {};
               for (var p in object) unlinked[p] = $unlink(object[p]);
          break;
          case 'hash':
               unlinked = new Hash(object);
          break;
          case 'array':
               unlinked = [];
               for (var i = 0, l = object.length; i < l; i++) unlinked[i] = $unlink(object[i]);
          break;
          default: return object;
     }
     return unlinked;
};


/*
---

script: Browser.js

description: The Browser Core. Contains Browser initialization, Window and Document, and the Browser Hash.

license: MIT-style license.

requires:
- /Native
- /$util

provides: [Browser, Window, Document, $exec]

...
*/

var Browser = $merge({

     Engine: {name: 'unknown', version: 0},

     Platform: {name: (window.orientation != undefined) ? 'ipod' : (navigator.platform.match(/mac|win|linux/i) || ['other'])[0].toLowerCase()},

     Features: {xpath: !!(document.evaluate), air: !!(window.runtime), query: !!(document.querySelector)},

     Plugins: {},

     Engines: {

          presto: function(){
               return (!window.opera) ? false : ((arguments.callee.caller) ? 960 : ((document.getElementsByClassName) ? 950 : 925));
          },

          trident: function(){
               return (!window.ActiveXObject) ? false : ((window.XMLHttpRequest) ? ((document.querySelectorAll) ? 6 : 5) : 4);
          },

          webkit: function(){
               return (navigator.taintEnabled) ? false : ((Browser.Features.xpath) ? ((Browser.Features.query) ? 525 : 420) : 419);
          },

          gecko: function(){
               return (!document.getBoxObjectFor && window.mozInnerScreenX == null) ? false : ((document.getElementsByClassName) ? 19 : 18);
          }

     }

}, Browser || {});

Browser.Platform[Browser.Platform.name] = true;

Browser.detect = function(){

     for (var engine in this.Engines){
          var version = this.Engines[engine]();
          if (version){
               this.Engine = {name: engine, version: version};
               this.Engine[engine] = this.Engine[engine + version] = true;
               break;
          }
     }

     return {name: engine, version: version};

};

Browser.detect();

Browser.Request = function(){
     return $try(function(){
          return new XMLHttpRequest();
     }, function(){
          return new ActiveXObject('MSXML2.XMLHTTP');
     }, function(){
          return new ActiveXObject('Microsoft.XMLHTTP');
     });
};

Browser.Features.xhr = !!(Browser.Request());

Browser.Plugins.Flash = (function(){
     var version = ($try(function(){
          return navigator.plugins['Shockwave Flash'].description;
     }, function(){
          return new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
     }) || '0 r0').match(/\d+/g);
     return {version: parseInt(version[0] || 0 + '.' + version[1], 10) || 0, build: parseInt(version[2], 10) || 0};
})();

function $exec(text){
     if (!text) return text;
     if (window.execScript){
          window.execScript(text);
     } else {
          var script = document.createElement('script');
          script.setAttribute('type', 'text/javascript');
          script[(Browser.Engine.webkit && Browser.Engine.version < 420) ? 'innerText' : 'text'] = text;
          document.head.appendChild(script);
          document.head.removeChild(script);
     }
     return text;
};

Native.UID = 1;

var $uid = (Browser.Engine.trident) ? function(item){
     return (item.uid || (item.uid = [Native.UID++]))[0];
} : function(item){
     return item.uid || (item.uid = Native.UID++);
};

var Window = new Native({

     name: 'Window',

     legacy: (Browser.Engine.trident) ? null: window.Window,

     initialize: function(win){
          $uid(win);
          if (!win.Element){
               win.Element = $empty;
               if (Browser.Engine.webkit) win.document.createElement("iframe"); //fixes safari 2
               win.Element.prototype = (Browser.Engine.webkit) ? window["[[DOMElement.prototype]]"] : {};
          }
          win.document.window = win;
          return $extend(win, Window.Prototype);
     },

     afterImplement: function(property, value){
          window[property] = Window.Prototype[property] = value;
     }

});

Window.Prototype = {$family: {name: 'window'}};

new Window(window);

var Document = new Native({

     name: 'Document',

     legacy: (Browser.Engine.trident) ? null: window.Document,

     initialize: function(doc){
          $uid(doc);
          doc.head = doc.getElementsByTagName('head')[0];
          doc.html = doc.getElementsByTagName('html')[0];
          if (Browser.Engine.trident && Browser.Engine.version <= 4) $try(function(){
               doc.execCommand("BackgroundImageCache", false, true);
          });
          if (Browser.Engine.trident) doc.window.attachEvent('onunload', function(){
               doc.window.detachEvent('onunload', arguments.callee);
               doc.head = doc.html = doc.window = null;
          });
          return $extend(doc, Document.Prototype);
     },

     afterImplement: function(property, value){
          document[property] = Document.Prototype[property] = value;
     }

});

Document.Prototype = {$family: {name: 'document'}};

new Document(document);


/*
---

script: Array.js

description: Contains Array Prototypes like each, contains, and erase.

license: MIT-style license.

requires:
- /$util
- /Array.each

provides: [Array]

...
*/

Array.implement({

     every: function(fn, bind){
          for (var i = 0, l = this.length; i < l; i++){
               if (!fn.call(bind, this[i], i, this)) return false;
          }
          return true;
     },

     filter: function(fn, bind){
          var results = [];
          for (var i = 0, l = this.length; i < l; i++){
               if (fn.call(bind, this[i], i, this)) results.push(this[i]);
          }
          return results;
     },

     clean: function(){
          return this.filter($defined);
     },

     indexOf: function(item, from){
          var len = this.length;
          for (var i = (from < 0) ? Math.max(0, len + from) : from || 0; i < len; i++){
               if (this[i] === item) return i;
          }
          return -1;
     },

     map: function(fn, bind){
          var results = [];
          for (var i = 0, l = this.length; i < l; i++) results[i] = fn.call(bind, this[i], i, this);
          return results;
     },

     some: function(fn, bind){
          for (var i = 0, l = this.length; i < l; i++){
               if (fn.call(bind, this[i], i, this)) return true;
          }
          return false;
     },

     associate: function(keys){
          var obj = {}, length = Math.min(this.length, keys.length);
          for (var i = 0; i < length; i++) obj[keys[i]] = this[i];
          return obj;
     },

     link: function(object){
          var result = {};
          for (var i = 0, l = this.length; i < l; i++){
               for (var key in object){
                    if (object[key](this[i])){
                         result[key] = this[i];
                         delete object[key];
                         break;
                    }
               }
          }
          return result;
     },

     contains: function(item, from){
          return this.indexOf(item, from) != -1;
     },

     extend: function(array){
          for (var i = 0, j = array.length; i < j; i++) this.push(array[i]);
          return this;
     },

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

     getRandom: function(){
          return (this.length) ? this[$random(0, this.length - 1)] : null;
     },

     include: function(item){
          if (!this.contains(item)) this.push(item);
          return this;
     },

     combine: function(array){
          for (var i = 0, l = array.length; i < l; i++) this.include(array[i]);
          return this;
     },

     erase: function(item){
          for (var i = this.length; i--; i){
               if (this[i] === item) this.splice(i, 1);
          }
          return this;
     },

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

     flatten: function(){
          var array = [];
          for (var i = 0, l = this.length; i < l; i++){
               var type = $type(this[i]);
               if (!type) continue;
               array = array.concat((type == 'array' || type == 'collection' || type == 'arguments') ? Array.flatten(this[i]) : this[i]);
          }
          return array;
     },

     hexToRgb: function(array){
          if (this.length != 3) return null;
          var rgb = this.map(function(value){
               if (value.length == 1) value += value;
               return value.toInt(16);
          });
          return (array) ? rgb : 'rgb(' + rgb + ')';
     },

     rgbToHex: function(array){
          if (this.length < 3) return null;
          if (this.length == 4 && this[3] == 0 && !array) return 'transparent';
          var hex = [];
          for (var i = 0; i < 3; i++){
               var bit = (this[i] - 0).toString(16);
               hex.push((bit.length == 1) ? '0' + bit : bit);
          }
          return (array) ? hex : '#' + hex.join('');
     }

});


/*
---

script: Function.js

description: Contains Function Prototypes like create, bind, pass, and delay.

license: MIT-style license.

requires:
- /Native
- /$util

provides: [Function]

...
*/

Function.implement({

     extend: function(properties){
          for (var property in properties) this[property] = properties[property];
          return this;
     },

     create: function(options){
          var self = this;
          options = options || {};
          return function(event){
               var args = options.arguments;
               args = (args != undefined) ? $splat(args) : Array.slice(arguments, (options.event) ? 1 : 0);
               if (options.event) args = [event || window.event].extend(args);
               var returns = function(){
                    return self.apply(options.bind || null, args);
               };
               if (options.delay) return setTimeout(returns, options.delay);
               if (options.periodical) return setInterval(returns, options.periodical);
               if (options.attempt) return $try(returns);
               return returns();
          };
     },

     run: function(args, bind){
          return this.apply(bind, $splat(args));
     },

     pass: function(args, bind){
          return this.create({bind: bind, arguments: args});
     },

     bind: function(bind, args){
          return this.create({bind: bind, arguments: args});
     },

     bindWithEvent: function(bind, args){
          return this.create({bind: bind, arguments: args, event: true});
     },

     attempt: function(args, bind){
          return this.create({bind: bind, arguments: args, attempt: true})();
     },

     delay: function(delay, bind, args){
          return this.create({bind: bind, arguments: args, delay: delay})();
     },

     periodical: function(periodical, bind, args){
          return this.create({bind: bind, arguments: args, periodical: periodical})();
     }

});


/*
---

script: Number.js

description: Contains Number Prototypes like limit, round, times, and ceil.

license: MIT-style license.

requires:
- /Native
- /$util

provides: [Number]

...
*/

Number.implement({

     limit: function(min, max){
          return Math.min(max, Math.max(min, this));
     },

     round: function(precision){
          precision = Math.pow(10, precision || 0);
          return Math.round(this * precision) / precision;
     },

     times: function(fn, bind){
          for (var i = 0; i < this; i++) fn.call(bind, i, this);
     },

     toFloat: function(){
          return parseFloat(this);
     },

     toInt: function(base){
          return parseInt(this, base || 10);
     }

});

Number.alias('times', 'each');

(function(math){
     var methods = {};
     math.each(function(name){
          if (!Number[name]) methods[name] = function(){
               return Math[name].apply(null, [this].concat($A(arguments)));
          };
     });
     Number.implement(methods);
})(['abs', 'acos', 'asin', 'atan', 'atan2', 'ceil', 'cos', 'exp', 'floor', 'log', 'max', 'min', 'pow', 'sin', 'sqrt', 'tan']);


/*
---

script: String.js

description: Contains String Prototypes like camelCase, capitalize, test, and toInt.

license: MIT-style license.

requires:
- /Native

provides: [String]

...
*/

String.implement({

     test: function(regex, params){
          return ((typeof regex == 'string') ? new RegExp(regex, params) : regex).test(this);
     },

     contains: function(string, separator){
          return (separator) ? (separator + this + separator).indexOf(separator + string + separator) > -1 : this.indexOf(string) > -1;
     },

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

     clean: function(){
          return this.replace(/\s+/g, ' ').trim();
     },

     camelCase: function(){
          return this.replace(/-\D/g, function(match){
               return match.charAt(1).toUpperCase();
          });
     },

     hyphenate: function(){
          return this.replace(/[A-Z]/g, function(match){
               return ('-' + match.charAt(0).toLowerCase());
          });
     },

     capitalize: function(){
          return this.replace(/\b[a-z]/g, function(match){
               return match.toUpperCase();
          });
     },

     escapeRegExp: function(){
          return this.replace(/([-.*+?^${}()|[\]\/\\])/g, '\\$1');
     },

     toInt: function(base){
          return parseInt(this, base || 10);
     },

     toFloat: function(){
          return parseFloat(this);
     },

     hexToRgb: function(array){
          var hex = this.match(/^#?(\w{1,2})(\w{1,2})(\w{1,2})$/);
          return (hex) ? hex.slice(1).hexToRgb(array) : null;
     },

     rgbToHex: function(array){
          var rgb = this.match(/\d{1,3}/g);
          return (rgb) ? rgb.rgbToHex(array) : null;
     },

     stripScripts: function(option){
          var scripts = '';
          var text = this.replace(/<script[^>]*>([\s\S]*?)<\/script>/gi, function(){
               scripts += arguments[1] + '\n';
               return '';
          });
          if (option === true) $exec(scripts);
          else if ($type(option) == 'function') option(scripts, text);
          return text;
     },

     substitute: function(object, regexp){
          return this.replace(regexp || (/\\?\{([^{}]+)\}/g), function(match, name){
               if (match.charAt(0) == '\\') return match.slice(1);
               return (object[name] != undefined) ? object[name] : '';
          });
     }

});


/*
---

script: Hash.js

description: Contains Hash Prototypes. Provides a means for overcoming the JavaScript practical impossibility of extending native Objects.

license: MIT-style license.

requires:
- /Hash.base

provides: [Hash]

...
*/

Hash.implement({

     has: Object.prototype.hasOwnProperty,

     keyOf: function(value){
          for (var key in this){
               if (this.hasOwnProperty(key) && this[key] === value) return key;
          }
          return null;
     },

     hasValue: function(value){
          return (Hash.keyOf(this, value) !== null);
     },

     extend: function(properties){
          Hash.each(properties || {}, function(value, key){
               Hash.set(this, key, value);
          }, this);
          return this;
     },

     combine: function(properties){
          Hash.each(properties || {}, function(value, key){
               Hash.include(this, key, value);
          }, this);
          return this;
     },

     erase: function(key){
          if (this.hasOwnProperty(key)) delete this[key];
          return this;
     },

     get: function(key){
          return (this.hasOwnProperty(key)) ? this[key] : null;
     },

     set: function(key, value){
          if (!this[key] || this.hasOwnProperty(key)) this[key] = value;
          return this;
     },

     empty: function(){
          Hash.each(this, function(value, key){
               delete this[key];
          }, this);
          return this;
     },

     include: function(key, value){
          if (this[key] == undefined) this[key] = value;
          return this;
     },

     map: function(fn, bind){
          var results = new Hash;
          Hash.each(this, function(value, key){
               results.set(key, fn.call(bind, value, key, this));
          }, this);
          return results;
     },

     filter: function(fn, bind){
          var results = new Hash;
          Hash.each(this, function(value, key){
               if (fn.call(bind, value, key, this)) results.set(key, value);
          }, this);
          return results;
     },

     every: function(fn, bind){
          for (var key in this){
               if (this.hasOwnProperty(key) && !fn.call(bind, this[key], key)) return false;
          }
          return true;
     },

     some: function(fn, bind){
          for (var key in this){
               if (this.hasOwnProperty(key) && fn.call(bind, this[key], key)) return true;
          }
          return false;
     },

     getKeys: function(){
          var keys = [];
          Hash.each(this, function(value, key){
               keys.push(key);
          });
          return keys;
     },

     getValues: function(){
          var values = [];
          Hash.each(this, function(value){
               values.push(value);
          });
          return values;
     },

     toQueryString: function(base){
          var queryString = [];
          Hash.each(this, function(value, key){
               if (base) key = base + '[' + key + ']';
               var result;
               switch ($type(value)){
                    case 'object': result = Hash.toQueryString(value, key); break;
                    case 'array':
                         var qs = {};
                         value.each(function(val, i){
                              qs[i] = val;
                         });
                         result = Hash.toQueryString(qs, key);
                    break;
                    default: result = key + '=' + encodeURIComponent(value);
               }
               if (value != undefined) queryString.push(result);
          });

          return queryString.join('&');
     }

});

Hash.alias({keyOf: 'indexOf', hasValue: 'contains'});


/*
---

script: Event.js

description: Contains the Event Class, to make the event object cross-browser.

license: MIT-style license.

requires:
- /Window
- /Document
- /Hash
- /Array
- /Function
- /String

provides: [Event]

...
*/

var Event = new Native({

     name: 'Event',

     initialize: function(event, win){
          win = win || window;
          var doc = win.document;
          event = event || win.event;
          if (event.$extended) return event;
          this.$extended = true;
          var type = event.type;
          var target = event.target || event.srcElement;
          while (target && target.nodeType == 3) target = target.parentNode;

          if (type.test(/key/)){
               var code = event.which || event.keyCode;
               var key = Event.Keys.keyOf(code);
               if (type == 'keydown'){
                    var fKey = code - 111;
                    if (fKey > 0 && fKey < 13) key = 'f' + fKey;
               }
               key = key || String.fromCharCode(code).toLowerCase();
          } else if (type.match(/(click|mouse|menu)/i)){
               doc = (!doc.compatMode || doc.compatMode == 'CSS1Compat') ? doc.html : doc.body;
               var page = {
                    x: event.pageX || event.clientX + doc.scrollLeft,
                    y: event.pageY || event.clientY + doc.scrollTop
               };
               var client = {
                    x: (event.pageX) ? event.pageX - win.pageXOffset : event.clientX,
                    y: (event.pageY) ? event.pageY - win.pageYOffset : event.clientY
               };
               if (type.match(/DOMMouseScroll|mousewheel/)){
                    var wheel = (event.wheelDelta) ? event.wheelDelta / 120 : -(event.detail || 0) / 3;
               }
               var rightClick = (event.which == 3) || (event.button == 2);
               var related = null;
               if (type.match(/over|out/)){
                    switch (type){
                         case 'mouseover': related = event.relatedTarget || event.fromElement; break;
                         case 'mouseout': related = event.relatedTarget || event.toElement;
                    }
                    if (!(function(){
                         while (related && related.nodeType == 3) related = related.parentNode;
                         return true;
                    }).create({attempt: Browser.Engine.gecko})()) related = false;
               }
          }

          return $extend(this, {
               event: event,
               type: type,

               page: page,
               client: client,
               rightClick: rightClick,

               wheel: wheel,

               relatedTarget: related,
               target: target,

               code: code,
               key: key,

               shift: event.shiftKey,
               control: event.ctrlKey,
               alt: event.altKey,
               meta: event.metaKey
          });
     }

});

Event.Keys = new Hash({
     'enter': 13,
     'up': 38,
     'down': 40,
     'left': 37,
     'right': 39,
     'esc': 27,
     'space': 32,
     'backspace': 8,
     'tab': 9,
     'delete': 46
});

Event.implement({

     stop: function(){
          return this.stopPropagation().preventDefault();
     },

     stopPropagation: function(){
          if (this.event.stopPropagation) this.event.stopPropagation();
          else this.event.cancelBubble = true;
          return this;
     },

     preventDefault: function(){
          if (this.event.preventDefault) this.event.preventDefault();
          else this.event.returnValue = false;
          return this;
     }

});


/*
---

script: Class.js

description: Contains the Class Function for easily creating, extending, and implementing reusable Classes.

license: MIT-style license.

requires:
- /$util
- /Native
- /Array
- /String
- /Function
- /Number
- /Hash

provides: [Class]

...
*/

function Class(params){

     if (params instanceof Function) params = {initialize: params};

     var newClass = function(){
          Object.reset(this);
          if (newClass._prototyping) return this;
          this._current = $empty;
          var value = (this.initialize) ? this.initialize.apply(this, arguments) : this;
          delete this._current; delete this.caller;
          return value;
     }.extend(this);

     newClass.implement(params);

     newClass.constructor = Class;
     newClass.prototype.constructor = newClass;

     return newClass;

};

Function.prototype.protect = function(){
     this._protected = true;
     return this;
};

Object.reset = function(object, key){

     if (key == null){
          for (var p in object) Object.reset(object, p);
          return object;
     }

     delete object[key];

     switch ($type(object[key])){
          case 'object':
               var F = function(){};
               F.prototype = object[key];
               var i = new F;
               object[key] = Object.reset(i);
          break;
          case 'array': object[key] = $unlink(object[key]); break;
     }

     return object;

};

new Native({name: 'Class', initialize: Class}).extend({

     instantiate: function(F){
          F._prototyping = true;
          var proto = new F;
          delete F._prototyping;
          return proto;
     },

     wrap: function(self, key, method){
          if (method._origin) method = method._origin;

          return function(){
               if (method._protected && this._current == null) throw new Error('The method "' + key + '" cannot be called.');
               var caller = this.caller, current = this._current;
               this.caller = current; this._current = arguments.callee;
               var result = method.apply(this, arguments);
               this._current = current; this.caller = caller;
               return result;
          }.extend({_owner: self, _origin: method, _name: key});

     }

});

Class.implement({

     implement: function(key, value){

          if ($type(key) == 'object'){
               for (var p in key) this.implement(p, key[p]);
               return this;
          }

          var mutator = Class.Mutators[key];

          if (mutator){
               value = mutator.call(this, value);
               if (value == null) return this;
          }

          var proto = this.prototype;

          switch ($type(value)){

               case 'function':
                    if (value._hidden) return this;
                    proto[key] = Class.wrap(this, key, value);
               break;

               case 'object':
                    var previous = proto[key];
                    if ($type(previous) == 'object') $mixin(previous, value);
                    else proto[key] = $unlink(value);
               break;

               case 'array':
                    proto[key] = $unlink(value);
               break;

               default: proto[key] = value;

          }

          return this;

     }

});

Class.Mutators = {

     Extends: function(parent){

          this.parent = parent;
          this.prototype = Class.instantiate(parent);

          this.implement('parent', function(){
               var name = this.caller._name, previous = this.caller._owner.parent.prototype[name];
               if (!previous) throw new Error('The method "' + name + '" has no parent.');
               return previous.apply(this, arguments);
          }.protect());

     },

     Implements: function(items){
          $splat(items).each(function(item){
               if (item instanceof Function) item = Class.instantiate(item);
               this.implement(item);
          }, this);

     }

};


/*
---

script: Class.Extras.js

description: Contains Utility Classes that can be implemented into your own Classes to ease the execution of many common tasks.

license: MIT-style license.

requires:
- /Class

provides: [Chain, Events, Options]

...
*/

var Chain = new Class({

     $chain: [],

     chain: function(){
          this.$chain.extend(Array.flatten(arguments));
          return this;
     },

     callChain: function(){
          return (this.$chain.length) ? this.$chain.shift().apply(this, arguments) : false;
     },

     clearChain: function(){
          this.$chain.empty();
          return this;
     }

});

var Events = new Class({

     $events: {},

     addEvent: function(type, fn, internal){
          type = Events.removeOn(type);
          if (fn != $empty){
               this.$events[type] = this.$events[type] || [];
               this.$events[type].include(fn);
               if (internal) fn.internal = true;
          }
          return this;
     },

     addEvents: function(events){
          for (var type in events) this.addEvent(type, events[type]);
          return this;
     },

     fireEvent: function(type, args, delay){
          type = Events.removeOn(type);
          if (!this.$events || !this.$events[type]) return this;
          this.$events[type].each(function(fn){
               fn.create({'bind': this, 'delay': delay, 'arguments': args})();
          }, this);
          return this;
     },

     removeEvent: function(type, fn){
          type = Events.removeOn(type);
          if (!this.$events[type]) return this;
          if (!fn.internal) this.$events[type].erase(fn);
          return this;
     },

     removeEvents: function(events){
          var type;
          if ($type(events) == 'object'){
               for (type in events) this.removeEvent(type, events[type]);
               return this;
          }
          if (events) events = Events.removeOn(events);
          for (type in this.$events){
               if (events && events != type) continue;
               var fns = this.$events[type];
               for (var i = fns.length; i--; i) this.removeEvent(type, fns[i]);
          }
          return this;
     }

});

Events.removeOn = function(string){
     return string.replace(/^on([A-Z])/, function(full, first){
          return first.toLowerCase();
     });
};

var Options = new Class({

     setOptions: function(){
          this.options = $merge.run([this.options].extend(arguments));
          if (!this.addEvent) return this;
          for (var option in this.options){
               if ($type(this.options[option]) != 'function' || !(/^on[A-Z]/).test(option)) continue;
               this.addEvent(option, this.options[option]);
               delete this.options[option];
          }
          return this;
     }

});


/*
---

script: Element.js

description: One of the most important items in MooTools. Contains the dollar function, the dollars function, and an handful of cross-browser, time-saver methods to let you easily work with HTML Elements.

license: MIT-style license.

requires:
- /Window
- /Document
- /Array
- /String
- /Function
- /Number
- /Hash

provides: [Element, Elements, $, $$, Iframe]

...
*/

var Element = new Native({

     name: 'Element',

     legacy: window.Element,

     initialize: function(tag, props){
          var konstructor = Element.Constructors.get(tag);
          if (konstructor) return konstructor(props);
          if (typeof tag == 'string') return document.newElement(tag, props);
          return document.id(tag).set(props);
     },

     afterImplement: function(key, value){
          Element.Prototype[key] = value;
          if (Array[key]) return;
          Elements.implement(key, function(){
               var items = [], elements = true;
               for (var i = 0, j = this.length; i < j; i++){
                    var returns = this[i][key].apply(this[i], arguments);
                    items.push(returns);
                    if (elements) elements = ($type(returns) == 'element');
               }
               return (elements) ? new Elements(items) : items;
          });
     }

});

Element.Prototype = {$family: {name: 'element'}};

Element.Constructors = new Hash;

var IFrame = new Native({

     name: 'IFrame',

     generics: false,

     initialize: function(){
          var params = Array.link(arguments, {properties: Object.type, iframe: $defined});
          var props = params.properties || {};
          var iframe = document.id(params.iframe);
          var onload = props.onload || $empty;
          delete props.onload;
          props.id = props.name = $pick(props.id, props.name, iframe ? (iframe.id || iframe.name) : 'IFrame_' + $time());
          iframe = new Element(iframe || 'iframe', props);
          var onFrameLoad = function(){
               var host = $try(function(){
                    return iframe.contentWindow.location.host;
               });
               if (!host || host == window.location.host){
                    var win = new Window(iframe.contentWindow);
                    new Document(iframe.contentWindow.document);
                    $extend(win.Element.prototype, Element.Prototype);
               }
               onload.call(iframe.contentWindow, iframe.contentWindow.document);
          };
          var contentWindow = $try(function(){
               return iframe.contentWindow;
          });
          ((contentWindow && contentWindow.document.body) || window.frames[props.id]) ? onFrameLoad() : iframe.addListener('load', onFrameLoad);
          return iframe;
     }

});

var Elements = new Native({

     initialize: function(elements, options){
          options = $extend({ddup: true, cash: true}, options);
          elements = elements || [];
          if (options.ddup || options.cash){
               var uniques = {}, returned = [];
               for (var i = 0, l = elements.length; i < l; i++){
                    var el = document.id(elements[i], !options.cash);
                    if (options.ddup){
                         if (uniques[el.uid]) continue;
                         uniques[el.uid] = true;
                    }
                    if (el) returned.push(el);
               }
               elements = returned;
          }
          return (options.cash) ? $extend(elements, this) : elements;
     }

});

Elements.implement({

     filter: function(filter, bind){
          if (!filter) return this;
          return new Elements(Array.filter(this, (typeof filter == 'string') ? function(item){
               return item.match(filter);
          } : filter, bind));
     }

});

Document.implement({

     newElement: function(tag, props){
          if (Browser.Engine.trident && props){
               ['name', 'type', 'checked'].each(function(attribute){
                    if (!props[attribute]) return;
                    tag += ' ' + attribute + '="' + props[attribute] + '"';
                    if (attribute != 'checked') delete props[attribute];
               });
               tag = '<' + tag + '>';
          }
          return document.id(this.createElement(tag)).set(props);
     },

     newTextNode: function(text){
          return this.createTextNode(text);
     },

     getDocument: function(){
          return this;
     },

     getWindow: function(){
          return this.window;
     },

id: (function(){
    var types = {
        string: function(id, nocash, doc){
            id = doc.getElementById(id);
            return (id) ? types.element(id, nocash) : null;
        },

        element: function(el, nocash){
            $uid(el);
            if (!nocash && !el.$family && !(/^object|embed$/i).test(el.tagName)){
                var proto = Element.Prototype;
                var p;
                if( Browser.Engine.trident ){
                    for (p in proto) {
                        if ( !el[p] ) { el[p] = proto[p]; }
                    }
                } else {
                    for (p in proto) {
                        el[p] = proto[p];
                    }
                }
            }
            return el;
        },

        object: function(obj, nocash, doc){
            if (obj.toElement) { return types.element(obj.toElement(doc), nocash); }
            return null;
        }

    };

    types.textnode = types.whitespace = types.window = types.document = $arguments(0);

    return function(el, nocash, doc){
        if (el && el.$family && el.uid) { return el; }
        var type = $type(el);
        return (types[type]) ? types[type](el, nocash, doc || document) : null;
    };

})()


});

if (window.$ == null) Window.implement({
     $: function(el, nc){
          return document.id(el, nc, this.document);
     }
});

Window.implement({

     $$: function(selector){
          if (arguments.length == 1 && typeof selector == 'string') return this.document.getElements(selector);
          var elements = [];
          var args = Array.flatten(arguments);
          for (var i = 0, l = args.length; i < l; i++){
               var item = args[i];
               switch ($type(item)){
                    case 'element': elements.push(item); break;
                    case 'string': elements.extend(this.document.getElements(item, true));
               }
          }
          return new Elements(elements);
     },

     getDocument: function(){
          return this.document;
     },

     getWindow: function(){
          return this;
     }

});

Native.implement([Element, Document], {

     getElement: function(selector, nocash){
          return document.id(this.getElements(selector, true)[0] || null, nocash);
     },

     getElements: function(tags, nocash){
          tags = tags.split(',');
          var elements = [];
          var ddup = (tags.length > 1);
          tags.each(function(tag){
               var partial = this.getElementsByTagName(tag.trim());
               (ddup) ? elements.extend(partial) : elements = partial;
          }, this);
          return new Elements(elements, {ddup: ddup, cash: !nocash});
     }

});

(function(){

var collected = {}, storage = {};
var props = {input: 'checked', option: 'selected', textarea: (Browser.Engine.webkit && Browser.Engine.version < 420) ? 'innerHTML' : 'value'};

var get = function(uid){
     return (storage[uid] || (storage[uid] = {}));
};

var clean = function(item, retain){
     if (!item) return;
     var uid = item.uid;
     if (Browser.Engine.trident){
          if (item.clearAttributes){
               var clone = retain && item.cloneNode(false);
               item.clearAttributes();
               if (clone) item.mergeAttributes(clone);
          } else if (item.removeEvents){
               item.removeEvents();
          }
          if ((/object/i).test(item.tagName)){
               for (var p in item){
                    if (typeof item[p] == 'function') item[p] = $empty;
               }
               Element.dispose(item);
          }
     }
     if (!uid) return;
     collected[uid] = storage[uid] = null;
};

var purge = function(){
     Hash.each(collected, clean);
     if (Browser.Engine.trident) $A(document.getElementsByTagName('object')).each(clean);
     if (window.CollectGarbage) CollectGarbage();
     collected = storage = null;
};

var walk = function(element, walk, start, match, all, nocash){
     var el = element[start || walk];
     var elements = [];
     while (el){
          if (el.nodeType == 1 && (!match || Element.match(el, match))){
               if (!all) return document.id(el, nocash);
               elements.push(el);
          }
          el = el[walk];
     }
     return (all) ? new Elements(elements, {ddup: false, cash: !nocash}) : null;
};

var attributes = {
     'html': 'innerHTML',
     'class': 'className',
     'for': 'htmlFor',
     'defaultValue': 'defaultValue',
     'text': (Browser.Engine.trident || (Browser.Engine.webkit && Browser.Engine.version < 420)) ? 'innerText' : 'textContent'
};
var bools = ['compact', 'nowrap', 'ismap', 'declare', 'noshade', 'checked', 'disabled', 'readonly', 'multiple', 'selected', 'noresize', 'defer'];
var camels = ['value', 'type', 'defaultValue', 'accessKey', 'cellPadding', 'cellSpacing', 'colSpan', 'frameBorder', 'maxLength', 'readOnly', 'rowSpan', 'tabIndex', 'useMap'];

bools = bools.associate(bools);

Hash.extend(attributes, bools);
Hash.extend(attributes, camels.associate(camels.map(String.toLowerCase)));

var inserters = {

     before: function(context, element){
          if (element.parentNode) element.parentNode.insertBefore(context, element);
     },

     after: function(context, element){
          if (!element.parentNode) return;
          var next = element.nextSibling;
          (next) ? element.parentNode.insertBefore(context, next) : element.parentNode.appendChild(context);
     },

     bottom: function(context, element){
          element.appendChild(context);
     },

     top: function(context, element){
          var first = element.firstChild;
          (first) ? element.insertBefore(context, first) : element.appendChild(context);
     }

};

inserters.inside = inserters.bottom;

Hash.each(inserters, function(inserter, where){

     where = where.capitalize();

     Element.implement('inject' + where, function(el){
          inserter(this, document.id(el, true));
          return this;
     });

     Element.implement('grab' + where, function(el){
          inserter(document.id(el, true), this);
          return this;
     });

});

Element.implement({

     set: function(prop, value){
          switch ($type(prop)){
               case 'object':
                    for (var p in prop) this.set(p, prop[p]);
                    break;
               case 'string':
                    var property = Element.Properties.get(prop);
                    (property && property.set) ? property.set.apply(this, Array.slice(arguments, 1)) : this.setProperty(prop, value);
          }
          return this;
     },

     get: function(prop){
          var property = Element.Properties.get(prop);
          return (property && property.get) ? property.get.apply(this, Array.slice(arguments, 1)) : this.getProperty(prop);
     },

     erase: function(prop){
          var property = Element.Properties.get(prop);
          (property && property.erase) ? property.erase.apply(this) : this.removeProperty(prop);
          return this;
     },

     setProperty: function(attribute, value){
          var key = attributes[attribute];
          if (value == undefined) return this.removeProperty(attribute);
          if (key && bools[attribute]) value = !!value;
          (key) ? this[key] = value : this.setAttribute(attribute, '' + value);
          return this;
     },

     setProperties: function(attributes){
          for (var attribute in attributes) this.setProperty(attribute, attributes[attribute]);
          return this;
     },

     getProperty: function(attribute){
          var key = attributes[attribute];
          var value = (key) ? this[key] : this.getAttribute(attribute, 2);
          return (bools[attribute]) ? !!value : (key) ? value : value || null;
     },

     getProperties: function(){
          var args = $A(arguments);
          return args.map(this.getProperty, this).associate(args);
     },

     removeProperty: function(attribute){
          var key = attributes[attribute];
          (key) ? this[key] = (key && bools[attribute]) ? false : '' : this.removeAttribute(attribute);
          return this;
     },

     removeProperties: function(){
          Array.each(arguments, this.removeProperty, this);
          return this;
     },

     hasClass: function(className){
          return this.className.contains(className, ' ');
     },

     addClass: function(className){
          if (!this.hasClass(className)) this.className = (this.className + ' ' + className).clean();
          return this;
     },

     removeClass: function(className){
          this.className = this.className.replace(new RegExp('(^|\\s)' + className + '(?:\\s|$)'), '$1');
          return this;
     },

     toggleClass: function(className){
          return this.hasClass(className) ? this.removeClass(className) : this.addClass(className);
     },

     adopt: function(){
          Array.flatten(arguments).each(function(element){
               element = document.id(element, true);
               if (element) this.appendChild(element);
          }, this);
          return this;
     },

     appendText: function(text, where){
          return this.grab(this.getDocument().newTextNode(text), where);
     },

     grab: function(el, where){
          inserters[where || 'bottom'](document.id(el, true), this);
          return this;
     },

     inject: function(el, where){
          inserters[where || 'bottom'](this, document.id(el, true));
          return this;
     },

     replaces: function(el){
          el = document.id(el, true);
          el.parentNode.replaceChild(this, el);
          return this;
     },

     wraps: function(el, where){
          el = document.id(el, true);
          return this.replaces(el).grab(el, where);
     },

     getPrevious: function(match, nocash){
          return walk(this, 'previousSibling', null, match, false, nocash);
     },

     getAllPrevious: function(match, nocash){
          return walk(this, 'previousSibling', null, match, true, nocash);
     },

     getNext: function(match, nocash){
          return walk(this, 'nextSibling', null, match, false, nocash);
     },

     getAllNext: function(match, nocash){
          return walk(this, 'nextSibling', null, match, true, nocash);
     },

     getFirst: function(match, nocash){
          return walk(this, 'nextSibling', 'firstChild', match, false, nocash);
     },

     getLast: function(match, nocash){
          return walk(this, 'previousSibling', 'lastChild', match, false, nocash);
     },

     getParent: function(match, nocash){
          return walk(this, 'parentNode', null, match, false, nocash);
     },

     getParents: function(match, nocash){
          return walk(this, 'parentNode', null, match, true, nocash);
     },

     getSiblings: function(match, nocash){
          return this.getParent().getChildren(match, nocash).erase(this);
     },

     getChildren: function(match, nocash){
          return walk(this, 'nextSibling', 'firstChild', match, true, nocash);
     },

     getWindow: function(){
          return this.ownerDocument.window;
     },

     getDocument: function(){
          return this.ownerDocument;
     },

     getElementById: function(id, nocash){
          var el = this.ownerDocument.getElementById(id);
          if (!el) return null;
          for (var parent = el.parentNode; parent != this; parent = parent.parentNode){
               if (!parent) return null;
          }
          return document.id(el, nocash);
     },

     getSelected: function(){
          return new Elements($A(this.options).filter(function(option){
               return option.selected;
          }));
     },

     getComputedStyle: function(property){
          if (this.currentStyle) return this.currentStyle[property.camelCase()];
          var computed = this.getDocument().defaultView.getComputedStyle(this, null);
          return (computed) ? computed.getPropertyValue([property.hyphenate()]) : null;
     },

     toQueryString: function(){
          var queryString = [];
          this.getElements('input, select, textarea', true).each(function(el){
               if (!el.name || el.disabled || el.type == 'submit' || el.type == 'reset' || el.type == 'file') return;
               var value = (el.tagName.toLowerCase() == 'select') ? Element.getSelected(el).map(function(opt){
                    return opt.value;
               }) : ((el.type == 'radio' || el.type == 'checkbox') && !el.checked) ? null : el.value;
               $splat(value).each(function(val){
                    if (typeof val != 'undefined') queryString.push(el.name + '=' + encodeURIComponent(val));
               });
          });
          return queryString.join('&');
     },

     clone: function(contents, keepid){
          contents = contents !== false;
          var clone = this.cloneNode(contents);
          var clean = function(node, element){
               if (!keepid) node.removeAttribute('id');
               if (Browser.Engine.trident){
                    node.clearAttributes();
                    node.mergeAttributes(element);
                    node.removeAttribute('uid');
                    if (node.options){
                         var no = node.options, eo = element.options;
                         for (var j = no.length; j--;) no[j].selected = eo[j].selected;
                    }
               }
               var prop = props[element.tagName.toLowerCase()];
               if (prop && element[prop]) node[prop] = element[prop];
          };

          if (contents){
               var ce = clone.getElementsByTagName('*'), te = this.getElementsByTagName('*');
               for (var i = ce.length; i--;) clean(ce[i], te[i]);
          }

          clean(clone, this);
          return document.id(clone);
     },

     destroy: function(){
          Element.empty(this);
          Element.dispose(this);
          clean(this, true);
          return null;
     },

     empty: function(){
          $A(this.childNodes).each(function(node){
               Element.destroy(node);
          });
          return this;
     },

     dispose: function(){
          return (this.parentNode) ? this.parentNode.removeChild(this) : this;
     },

     hasChild: function(el){
          el = document.id(el, true);
          if (!el) return false;
          if (Browser.Engine.webkit && Browser.Engine.version < 420) return $A(this.getElementsByTagName(el.tagName)).contains(el);
          return (this.contains) ? (this != el && this.contains(el)) : !!(this.compareDocumentPosition(el) & 16);
     },

     match: function(tag){
          return (!tag || (tag == this) || (Element.get(this, 'tag') == tag));
     }

});

Native.implement([Element, Window, Document], {

     addListener: function(type, fn){
          if (type == 'unload'){
               var old = fn, self = this;
               fn = function(){
                    self.removeListener('unload', fn);
                    old();
               };
          } else {
               collected[this.uid] = this;
          }
          if (this.addEventListener) this.addEventListener(type, fn, false);
          else this.attachEvent('on' + type, fn);
          return this;
     },

     removeListener: function(type, fn){
          if (this.removeEventListener) this.removeEventListener(type, fn, false);
          else this.detachEvent('on' + type, fn);
          return this;
     },

     retrieve: function(property, dflt){
          var storage = get(this.uid), prop = storage[property];
          if (dflt != undefined && prop == undefined) prop = storage[property] = dflt;
          return $pick(prop);
     },

     store: function(property, value){
          var storage = get(this.uid);
          storage[property] = value;
          return this;
     },

     eliminate: function(property){
          var storage = get(this.uid);
          delete storage[property];
          return this;
     }

});

window.addListener('unload', purge);

})();

Element.Properties = new Hash;

Element.Properties.style = {

     set: function(style){
          this.style.cssText = style;
     },

     get: function(){
          return this.style.cssText;
     },

     erase: function(){
          this.style.cssText = '';
     }

};

Element.Properties.tag = {

     get: function(){
          return this.tagName.toLowerCase();
     }

};

Element.Properties.html = (function(){
     var wrapper = document.createElement('div');

     var translations = {
          table: [1, '<table>', '</table>'],
          select: [1, '<select>', '</select>'],
          tbody: [2, '<table><tbody>', '</tbody></table>'],
          tr: [3, '<table><tbody><tr>', '</tr></tbody></table>']
     };
     translations.thead = translations.tfoot = translations.tbody;

     var html = {
          set: function(){
               var html = Array.flatten(arguments).join('');
               var wrap = Browser.Engine.trident && translations[this.get('tag')];
               if (wrap){
                    var first = wrapper;
                    first.innerHTML = wrap[1] + html + wrap[2];
                    for (var i = wrap[0]; i--;) first = first.firstChild;
                    this.empty().adopt(first.childNodes);
               } else {
                    this.innerHTML = html;
               }
          }
     };

     html.erase = html.set;

     return html;
})();

if (Browser.Engine.webkit && Browser.Engine.version < 420) Element.Properties.text = {
     get: function(){
          if (this.innerText) return this.innerText;
          var temp = this.ownerDocument.newElement('div', {html: this.innerHTML}).inject(this.ownerDocument.body);
          var text = temp.innerText;
          temp.destroy();
          return text;
     }
};


/*
---

script: Element.Event.js

description: Contains Element methods for dealing with events. This file also includes mouseenter and mouseleave custom Element Events.

license: MIT-style license.

requires:
- /Element
- /Event

provides: [Element.Event]

...
*/

Element.Properties.events = {set: function(events){
     this.addEvents(events);
}};

Native.implement([Element, Window, Document], {

     addEvent: function(type, fn){
          var events = this.retrieve('events', {});
          events[type] = events[type] || {'keys': [], 'values': []};
          if (events[type].keys.contains(fn)) return this;
          events[type].keys.push(fn);
          var realType = type, custom = Element.Events.get(type), condition = fn, self = this;
          if (custom){
               if (custom.onAdd) custom.onAdd.call(this, fn);
               if (custom.condition){
                    condition = function(event){
                         if (custom.condition.call(this, event)) return fn.call(this, event);
                         return true;
                    };
               }
               realType = custom.base || realType;
          }
          var defn = function(){
               return fn.call(self);
          };
          var nativeEvent = Element.NativeEvents[realType];
          if (nativeEvent){
               if (nativeEvent == 2){
                    defn = function(event){
                         event = new Event(event, self.getWindow());
                         if (condition.call(self, event) === false) event.stop();
                    };
               }
               this.addListener(realType, defn);
          }
          events[type].values.push(defn);
          return this;
     },

     removeEvent: function(type, fn){
          var events = this.retrieve('events');
          if (!events || !events[type]) return this;
          var pos = events[type].keys.indexOf(fn);
          if (pos == -1) return this;
          events[type].keys.splice(pos, 1);
          var value = events[type].values.splice(pos, 1)[0];
          var custom = Element.Events.get(type);
          if (custom){
               if (custom.onRemove) custom.onRemove.call(this, fn);
               type = custom.base || type;
          }
          return (Element.NativeEvents[type]) ? this.removeListener(type, value) : this;
     },

     addEvents: function(events){
          for (var event in events) this.addEvent(event, events[event]);
          return this;
     },

     removeEvents: function(events){
          var type;
          if ($type(events) == 'object'){
               for (type in events) this.removeEvent(type, events[type]);
               return this;
          }
          var attached = this.retrieve('events');
          if (!attached) return this;
          if (!events){
               for (type in attached) this.removeEvents(type);
               this.eliminate('events');
          } else if (attached[events]){
               while (attached[events].keys[0]) this.removeEvent(events, attached[events].keys[0]);
               attached[events] = null;
          }
          return this;
     },

     fireEvent: function(type, args, delay){
          var events = this.retrieve('events');
          if (!events || !events[type]) return this;
          events[type].keys.each(function(fn){
               fn.create({'bind': this, 'delay': delay, 'arguments': args})();
          }, this);
          return this;
     },

     cloneEvents: function(from, type){
          from = document.id(from);
          var fevents = from.retrieve('events');
          if (!fevents) return this;
          if (!type){
               for (var evType in fevents) this.cloneEvents(from, evType);
          } else if (fevents[type]){
               fevents[type].keys.each(function(fn){
                    this.addEvent(type, fn);
               }, this);
          }
          return this;
     }

});

Element.NativeEvents = {
     click: 2, dblclick: 2, mouseup: 2, mousedown: 2, contextmenu: 2, //mouse buttons
     mousewheel: 2, DOMMouseScroll: 2, //mouse wheel
     mouseover: 2, mouseout: 2, mousemove: 2, selectstart: 2, selectend: 2, //mouse movement
     keydown: 2, keypress: 2, keyup: 2, //keyboard
     focus: 2, blur: 2, change: 2, reset: 2, select: 2, submit: 2, //form elements
     load: 1, unload: 1, beforeunload: 2, resize: 1, move: 1, DOMContentLoaded: 1, readystatechange: 1, //window
     error: 1, abort: 1, scroll: 1 //misc
};

(function(){

var $check = function(event){
     var related = event.relatedTarget;
     if (related == undefined) return true;
     if (related === false) return false;
     return ($type(this) != 'document' && related != this && related.prefix != 'xul' && !this.hasChild(related));
};

Element.Events = new Hash({

     mouseenter: {
          base: 'mouseover',
          condition: $check
     },

     mouseleave: {
          base: 'mouseout',
          condition: $check
     },

     mousewheel: {
          base: (Browser.Engine.gecko) ? 'DOMMouseScroll' : 'mousewheel'
     }

});

})();


/*
---

script: Element.Style.js

description: Contains methods for interacting with the styles of Elements in a fashionable way.

license: MIT-style license.

requires:
- /Element

provides: [Element.Style]

...
*/

Element.Properties.styles = {set: function(styles){
     this.setStyles(styles);
}};

Element.Properties.opacity = {

     set: function(opacity, novisibility){
          if (!novisibility){
               if (opacity == 0){
                    if (this.style.visibility != 'hidden') this.style.visibility = 'hidden';
               } else {
                    if (this.style.visibility != 'visible') this.style.visibility = 'visible';
               }
          }
          if (!this.currentStyle || !this.currentStyle.hasLayout) this.style.zoom = 1;
          if (Browser.Engine.trident) this.style.filter = (opacity == 1) ? '' : 'alpha(opacity=' + opacity * 100 + ')';
          this.style.opacity = opacity;
          this.store('opacity', opacity);
     },

     get: function(){
          return this.retrieve('opacity', 1);
     }

};

Element.implement({

     setOpacity: function(value){
          return this.set('opacity', value, true);
     },

     getOpacity: function(){
          return this.get('opacity');
     },

     setStyle: function(property, value){
          switch (property){
               case 'opacity': return this.set('opacity', parseFloat(value));
               case 'float': property = (Browser.Engine.trident) ? 'styleFloat' : 'cssFloat';
          }
          property = property.camelCase();
          if ($type(value) != 'string'){
               var map = (Element.Styles.get(property) || '@').split(' ');
               value = $splat(value).map(function(val, i){
                    if (!map[i]) return '';
                    return ($type(val) == 'number') ? map[i].replace('@', Math.round(val)) : val;
               }).join(' ');
          } else if (value == String(Number(value))){
               value = Math.round(value);
          }
          this.style[property] = value;
          return this;
     },

     getStyle: function(property){
          switch (property){
               case 'opacity': return this.get('opacity');
               case 'float': property = (Browser.Engine.trident) ? 'styleFloat' : 'cssFloat';
          }
          property = property.camelCase();
          var result = this.style[property];
          if (!$chk(result)){
               result = [];
               for (var style in Element.ShortStyles){
                    if (property != style) continue;
                    for (var s in Element.ShortStyles[style]) result.push(this.getStyle(s));
                    return result.join(' ');
               }
               result = this.getComputedStyle(property);
          }
          if (result){
               result = String(result);
               var color = result.match(/rgba?\([\d\s,]+\)/);
               if (color) result = result.replace(color[0], color[0].rgbToHex());
          }
          if (Browser.Engine.presto || (Browser.Engine.trident && !$chk(parseInt(result, 10)))){
               if (property.test(/^(height|width)$/)){
                    var values = (property == 'width') ? ['left', 'right'] : ['top', 'bottom'], size = 0;
                    values.each(function(value){
                         size += this.getStyle('border-' + value + '-width').toInt() + this.getStyle('padding-' + value).toInt();
                    }, this);
                    return this['offset' + property.capitalize()] - size + 'px';
               }
               if ((Browser.Engine.presto) && String(result).test('px')) return result;
               if (property.test(/(border(.+)Width|margin|padding)/)) return '0px';
          }
          return result;
     },

     setStyles: function(styles){
          for (var style in styles) this.setStyle(style, styles[style]);
          return this;
     },

     getStyles: function(){
          var result = {};
          Array.flatten(arguments).each(function(key){
               result[key] = this.getStyle(key);
          }, this);
          return result;
     }

});

Element.Styles = new Hash({
     left: '@px', top: '@px', bottom: '@px', right: '@px',
     width: '@px', height: '@px', maxWidth: '@px', maxHeight: '@px', minWidth: '@px', minHeight: '@px',
     backgroundColor: 'rgb(@, @, @)', backgroundPosition: '@px @px', color: 'rgb(@, @, @)',
     fontSize: '@px', letterSpacing: '@px', lineHeight: '@px', clip: 'rect(@px @px @px @px)',
     margin: '@px @px @px @px', padding: '@px @px @px @px', border: '@px @ rgb(@, @, @) @px @ rgb(@, @, @) @px @ rgb(@, @, @)',
     borderWidth: '@px @px @px @px', borderStyle: '@ @ @ @', borderColor: 'rgb(@, @, @) rgb(@, @, @) rgb(@, @, @) rgb(@, @, @)',
     zIndex: '@', 'zoom': '@', fontWeight: '@', textIndent: '@px', opacity: '@'
});

Element.ShortStyles = {margin: {}, padding: {}, border: {}, borderWidth: {}, borderStyle: {}, borderColor: {}};

['Top', 'Right', 'Bottom', 'Left'].each(function(direction){
     var Short = Element.ShortStyles;
     var All = Element.Styles;
     ['margin', 'padding'].each(function(style){
          var sd = style + direction;
          Short[style][sd] = All[sd] = '@px';
     });
     var bd = 'border' + direction;
     Short.border[bd] = All[bd] = '@px @ rgb(@, @, @)';
     var bdw = bd + 'Width', bds = bd + 'Style', bdc = bd + 'Color';
     Short[bd] = {};
     Short.borderWidth[bdw] = Short[bd][bdw] = All[bdw] = '@px';
     Short.borderStyle[bds] = Short[bd][bds] = All[bds] = '@';
     Short.borderColor[bdc] = Short[bd][bdc] = All[bdc] = 'rgb(@, @, @)';
});


/*
---

script: Element.Dimensions.js

description: Contains methods to work with size, scroll, or positioning of Elements and the window object.

license: MIT-style license.

credits:
- Element positioning based on the [qooxdoo](http://qooxdoo.org/) code and smart browser fixes, [LGPL License](http://www.gnu.org/licenses/lgpl.html).
- Viewport dimensions based on [YUI](http://developer.yahoo.com/yui/) code, [BSD License](http://developer.yahoo.com/yui/license.html).

requires:
- /Element

provides: [Element.Dimensions]

...
*/

(function(){

Element.implement({

     scrollTo: function(x, y){
          if (isBody(this)){
               this.getWindow().scrollTo(x, y);
          } else {
               this.scrollLeft = x;
               this.scrollTop = y;
          }
          return this;
     },

     getSize: function(){
          if (isBody(this)) return this.getWindow().getSize();
          return {x: this.offsetWidth, y: this.offsetHeight};
     },

     getScrollSize: function(){
          if (isBody(this)) return this.getWindow().getScrollSize();
          return {x: this.scrollWidth, y: this.scrollHeight};
     },

     getScroll: function(){
          if (isBody(this)) return this.getWindow().getScroll();
          return {x: this.scrollLeft, y: this.scrollTop};
     },

     getScrolls: function(){
          var element = this, position = {x: 0, y: 0};
          while (element && !isBody(element)){
               position.x += element.scrollLeft;
               position.y += element.scrollTop;
               element = element.parentNode;
          }
          return position;
     },

     getOffsetParent: function(){
          var element = this;
          if (isBody(element)) return null;
          if (!Browser.Engine.trident) return element.offsetParent;
          while ((element = element.parentNode) && !isBody(element)){
               if (styleString(element, 'position') != 'static') return element;
          }
          return null;
     },

     getOffsets: function(){
          if (this.getBoundingClientRect){
               var bound = this.getBoundingClientRect(),
                    html = document.id(this.getDocument().documentElement),
                    htmlScroll = html.getScroll(),
                    elemScrolls = this.getScrolls(),
                    elemScroll = this.getScroll(),
                    isFixed = (styleString(this, 'position') == 'fixed');

               return {
                    x: bound.left.toInt() + elemScrolls.x - elemScroll.x + ((isFixed) ? 0 : htmlScroll.x) - html.clientLeft,
                    y: bound.top.toInt()  + elemScrolls.y - elemScroll.y + ((isFixed) ? 0 : htmlScroll.y) - html.clientTop
               };
          }

          var element = this, position = {x: 0, y: 0};
          if (isBody(this)) return position;

          while (element && !isBody(element)){
               position.x += element.offsetLeft;
               position.y += element.offsetTop;

               if (Browser.Engine.gecko){
                    if (!borderBox(element)){
                         position.x += leftBorder(element);
                         position.y += topBorder(element);
                    }
                    var parent = element.parentNode;
                    if (parent && styleString(parent, 'overflow') != 'visible'){
                         position.x += leftBorder(parent);
                         position.y += topBorder(parent);
                    }
               } else if (element != this && Browser.Engine.webkit){
                    position.x += leftBorder(element);
                    position.y += topBorder(element);
               }

               element = element.offsetParent;
          }
          if (Browser.Engine.gecko && !borderBox(this)){
               position.x -= leftBorder(this);
               position.y -= topBorder(this);
          }
          return position;
     },

     getPosition: function(relative){
          if (isBody(this)) return {x: 0, y: 0};
          var offset = this.getOffsets(),
                    scroll = this.getScrolls();
          var position = {
               x: offset.x - scroll.x,
               y: offset.y - scroll.y
          };
          var relativePosition = (relative && (relative = document.id(relative))) ? relative.getPosition() : {x: 0, y: 0};
          return {x: position.x - relativePosition.x, y: position.y - relativePosition.y};
     },

     getCoordinates: function(element){
          if (isBody(this)) return this.getWindow().getCoordinates();
          var position = this.getPosition(element),
                    size = this.getSize();
          var obj = {
               left: position.x,
               top: position.y,
               width: size.x,
               height: size.y
          };
          obj.right = obj.left + obj.width;
          obj.bottom = obj.top + obj.height;
          return obj;
     },

     computePosition: function(obj){
          return {
               left: obj.x - styleNumber(this, 'margin-left'),
               top: obj.y - styleNumber(this, 'margin-top')
          };
     },

     setPosition: function(obj){
          return this.setStyles(this.computePosition(obj));
     }

});


Native.implement([Document, Window], {

     getSize: function(){
          if (Browser.Engine.presto || Browser.Engine.webkit){
               var win = this.getWindow();
               return {x: win.innerWidth, y: win.innerHeight};
          }
          var doc = getCompatElement(this);
          return {x: doc.clientWidth, y: doc.clientHeight};
     },

     getScroll: function(){
          var win = this.getWindow(), doc = getCompatElement(this);
          return {x: win.pageXOffset || doc.scrollLeft, y: win.pageYOffset || doc.scrollTop};
     },

     getScrollSize: function(){
          var doc = getCompatElement(this), min = this.getSize();
          return {x: Math.max(doc.scrollWidth, min.x), y: Math.max(doc.scrollHeight, min.y)};
     },

     getPosition: function(){
          return {x: 0, y: 0};
     },

     getCoordinates: function(){
          var size = this.getSize();
          return {top: 0, left: 0, bottom: size.y, right: size.x, height: size.y, width: size.x};
     }

});

// private methods

var styleString = Element.getComputedStyle;

function styleNumber(element, style){
     return styleString(element, style).toInt() || 0;
};

function borderBox(element){
     return styleString(element, '-moz-box-sizing') == 'border-box';
};

function topBorder(element){
     return styleNumber(element, 'border-top-width');
};

function leftBorder(element){
     return styleNumber(element, 'border-left-width');
};

function isBody(element){
     return (/^(?:body|html)$/i).test(element.tagName);
};

function getCompatElement(element){
     var doc = element.getDocument();
     return (!doc.compatMode || doc.compatMode == 'CSS1Compat') ? doc.html : doc.body;
};

})();

//aliases
Element.alias('setPosition', 'position'); //compatability

Native.implement([Window, Document, Element], {

     getHeight: function(){
          return this.getSize().y;
     },

     getWidth: function(){
          return this.getSize().x;
     },

     getScrollTop: function(){
          return this.getScroll().y;
     },

     getScrollLeft: function(){
          return this.getScroll().x;
     },

     getScrollHeight: function(){
          return this.getScrollSize().y;
     },

     getScrollWidth: function(){
          return this.getScrollSize().x;
     },

     getTop: function(){
          return this.getPosition().y;
     },

     getLeft: function(){
          return this.getPosition().x;
     }

});


/*
---

script: Selectors.js

description: Adds advanced CSS-style querying capabilities for targeting HTML Elements. Includes pseudo selectors.

license: MIT-style license.

requires:
- /Element

provides: [Selectors]

...
*/

Native.implement([Document, Element], {

     getElements: function(expression, nocash){
          expression = expression.split(',');
          var items, local = {};
          for (var i = 0, l = expression.length; i < l; i++){
               var selector = expression[i], elements = Selectors.Utils.search(this, selector, local);
               if (i != 0 && elements.item) elements = $A(elements);
               items = (i == 0) ? elements : (items.item) ? $A(items).concat(elements) : items.concat(elements);
          }
          return new Elements(items, {ddup: (expression.length > 1), cash: !nocash});
     }

});

Element.implement({

     match: function(selector){
          if (!selector || (selector == this)) return true;
          var tagid = Selectors.Utils.parseTagAndID(selector);
          var tag = tagid[0], id = tagid[1];
          if (!Selectors.Filters.byID(this, id) || !Selectors.Filters.byTag(this, tag)) return false;
          var parsed = Selectors.Utils.parseSelector(selector);
          return (parsed) ? Selectors.Utils.filter(this, parsed, {}) : true;
     }

});

var Selectors = {Cache: {nth: {}, parsed: {}}};

Selectors.RegExps = {
     id: (/#([\w-]+)/),
     tag: (/^(\w+|\*)/),
     quick: (/^(\w+|\*)$/),
     splitter: (/\s*([+>~\s])\s*([a-zA-Z#.*:\[])/g),
     combined: (/\.([\w-]+)|\[(\w+)(?:([!*^$~|]?=)(["']?)([^\4]*?)\4)?\]|:([\w-]+)(?:\(["']?(.*?)?["']?\)|$)/g)
};

Selectors.Utils = {

     chk: function(item, uniques){
          if (!uniques) return true;
          var uid = $uid(item);
          if (!uniques[uid]) return uniques[uid] = true;
          return false;
     },

     parseNthArgument: function(argument){
          if (Selectors.Cache.nth[argument]) return Selectors.Cache.nth[argument];
          var parsed = argument.match(/^([+-]?\d*)?([a-z]+)?([+-]?\d*)?$/);
          if (!parsed) return false;
          var inta = parseInt(parsed[1], 10);
          var a = (inta || inta === 0) ? inta : 1;
          var special = parsed[2] || false;
          var b = parseInt(parsed[3], 10) || 0;
          if (a != 0){
               b--;
               while (b < 1) b += a;
               while (b >= a) b -= a;
          } else {
               a = b;
               special = 'index';
          }
          switch (special){
               case 'n': parsed = {a: a, b: b, special: 'n'}; break;
               case 'odd': parsed = {a: 2, b: 0, special: 'n'}; break;
               case 'even': parsed = {a: 2, b: 1, special: 'n'}; break;
               case 'first': parsed = {a: 0, special: 'index'}; break;
               case 'last': parsed = {special: 'last-child'}; break;
               case 'only': parsed = {special: 'only-child'}; break;
               default: parsed = {a: (a - 1), special: 'index'};
          }

          return Selectors.Cache.nth[argument] = parsed;
     },

     parseSelector: function(selector){
          if (Selectors.Cache.parsed[selector]) return Selectors.Cache.parsed[selector];
          var m, parsed = {classes: [], pseudos: [], attributes: []};
          while ((m = Selectors.RegExps.combined.exec(selector))){
               var cn = m[1], an = m[2], ao = m[3], av = m[5], pn = m[6], pa = m[7];
               if (cn){
                    parsed.classes.push(cn);
               } else if (pn){
                    var parser = Selectors.Pseudo.get(pn);
                    if (parser) parsed.pseudos.push({parser: parser, argument: pa});
                    else parsed.attributes.push({name: pn, operator: '=', value: pa});
               } else if (an){
                    parsed.attributes.push({name: an, operator: ao, value: av});
               }
          }
          if (!parsed.classes.length) delete parsed.classes;
          if (!parsed.attributes.length) delete parsed.attributes;
          if (!parsed.pseudos.length) delete parsed.pseudos;
          if (!parsed.classes && !parsed.attributes && !parsed.pseudos) parsed = null;
          return Selectors.Cache.parsed[selector] = parsed;
     },

     parseTagAndID: function(selector){
          var tag = selector.match(Selectors.RegExps.tag);
          var id = selector.match(Selectors.RegExps.id);
          return [(tag) ? tag[1] : '*', (id) ? id[1] : false];
     },

     filter: function(item, parsed, local){
          var i;
          if (parsed.classes){
               for (i = parsed.classes.length; i--; i){
                    var cn = parsed.classes[i];
                    if (!Selectors.Filters.byClass(item, cn)) return false;
               }
          }
          if (parsed.attributes){
               for (i = parsed.attributes.length; i--; i){
                    var att = parsed.attributes[i];
                    if (!Selectors.Filters.byAttribute(item, att.name, att.operator, att.value)) return false;
               }
          }
          if (parsed.pseudos){
               for (i = parsed.pseudos.length; i--; i){
                    var psd = parsed.pseudos[i];
                    if (!Selectors.Filters.byPseudo(item, psd.parser, psd.argument, local)) return false;
               }
          }
          return true;
     },

     getByTagAndID: function(ctx, tag, id){
          if (id){
               var item = (ctx.getElementById) ? ctx.getElementById(id, true) : Element.getElementById(ctx, id, true);
               return (item && Selectors.Filters.byTag(item, tag)) ? [item] : [];
          } else {
               return ctx.getElementsByTagName(tag);
          }
     },

     search: function(self, expression, local){
          var splitters = [];

          var selectors = expression.trim().replace(Selectors.RegExps.splitter, function(m0, m1, m2){
               splitters.push(m1);
               return ':)' + m2;
          }).split(':)');

          var items, filtered, item;

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

               var selector = selectors[i];

               if (i == 0 && Selectors.RegExps.quick.test(selector)){
                    items = self.getElementsByTagName(selector);
                    continue;
               }

               var splitter = splitters[i - 1];

               var tagid = Selectors.Utils.parseTagAndID(selector);
               var tag = tagid[0], id = tagid[1];

               if (i == 0){
                    items = Selectors.Utils.getByTagAndID(self, tag, id);
               } else {
                    var uniques = {}, found = [];
                    for (var j = 0, k = items.length; j < k; j++) found = Selectors.Getters[splitter](found, items[j], tag, id, uniques);
                    items = found;
               }

               var parsed = Selectors.Utils.parseSelector(selector);

               if (parsed){
                    filtered = [];
                    for (var m = 0, n = items.length; m < n; m++){
                         item = items[m];
                         if (Selectors.Utils.filter(item, parsed, local)) filtered.push(item);
                    }
                    items = filtered;
               }

          }

          return items;

     }

};

Selectors.Getters = {

     ' ': function(found, self, tag, id, uniques){
          var items = Selectors.Utils.getByTagAndID(self, tag, id);
          for (var i = 0, l = items.length; i < l; i++){
               var item = items[i];
               if (Selectors.Utils.chk(item, uniques)) found.push(item);
          }
          return found;
     },

     '>': function(found, self, tag, id, uniques){
          var children = Selectors.Utils.getByTagAndID(self, tag, id);
          for (var i = 0, l = children.length; i < l; i++){
               var child = children[i];
               if (child.parentNode == self && Selectors.Utils.chk(child, uniques)) found.push(child);
          }
          return found;
     },

     '+': function(found, self, tag, id, uniques){
          while ((self = self.nextSibling)){
               if (self.nodeType == 1){
                    if (Selectors.Utils.chk(self, uniques) && Selectors.Filters.byTag(self, tag) && Selectors.Filters.byID(self, id)) found.push(self);
                    break;
               }
          }
          return found;
     },

     '~': function(found, self, tag, id, uniques){
          while ((self = self.nextSibling)){
               if (self.nodeType == 1){
                    if (!Selectors.Utils.chk(self, uniques)) break;
                    if (Selectors.Filters.byTag(self, tag) && Selectors.Filters.byID(self, id)) found.push(self);
               }
          }
          return found;
     }

};

Selectors.Filters = {

     byTag: function(self, tag){
          return (tag == '*' || (self.tagName && self.tagName.toLowerCase() == tag));
     },

     byID: function(self, id){
          return (!id || (self.id && self.id == id));
     },

     byClass: function(self, klass){
          return (self.className && self.className.contains && self.className.contains(klass, ' '));
     },

     byPseudo: function(self, parser, argument, local){
          return parser.call(self, argument, local);
     },

     byAttribute: function(self, name, operator, value){
          var result = Element.prototype.getProperty.call(self, name);
          if (!result) return (operator == '!=');
          if (!operator || value == undefined) return true;
          switch (operator){
               case '=': return (result == value);
               case '*=': return (result.contains(value));
               case '^=': return (result.substr(0, value.length) == value);
               case '$=': return (result.substr(result.length - value.length) == value);
               case '!=': return (result != value);
               case '~=': return result.contains(value, ' ');
               case '|=': return result.contains(value, '-');
          }
          return false;
     }

};

Selectors.Pseudo = new Hash({

     // w3c pseudo selectors

     checked: function(){
          return this.checked;
     },

     empty: function(){
          return !(this.innerText || this.textContent || '').length;
     },

     not: function(selector){
          return !Element.match(this, selector);
     },

     contains: function(text){
          return (this.innerText || this.textContent || '').contains(text);
     },

     'first-child': function(){
          return Selectors.Pseudo.index.call(this, 0);
     },

     'last-child': function(){
          var element = this;
          while ((element = element.nextSibling)){
               if (element.nodeType == 1) return false;
          }
          return true;
     },

     'only-child': function(){
          var prev = this;
          while ((prev = prev.previousSibling)){
               if (prev.nodeType == 1) return false;
          }
          var next = this;
          while ((next = next.nextSibling)){
               if (next.nodeType == 1) return false;
          }
          return true;
     },

     'nth-child': function(argument, local){
          argument = (argument == undefined) ? 'n' : argument;
          var parsed = Selectors.Utils.parseNthArgument(argument);
          if (parsed.special != 'n') return Selectors.Pseudo[parsed.special].call(this, parsed.a, local);
          var count = 0;
          local.positions = local.positions || {};
          var uid = $uid(this);
          if (!local.positions[uid]){
               var self = this;
               while ((self = self.previousSibling)){
                    if (self.nodeType != 1) continue;
                    count ++;
                    var position = local.positions[$uid(self)];
                    if (position != undefined){
                         count = position + count;
                         break;
                    }
               }
               local.positions[uid] = count;
          }
          return (local.positions[uid] % parsed.a == parsed.b);
     },

     // custom pseudo selectors

     index: function(index){
          var element = this, count = 0;
          while ((element = element.previousSibling)){
               if (element.nodeType == 1 && ++count > index) return false;
          }
          return (count == index);
     },

     even: function(argument, local){
          return Selectors.Pseudo['nth-child'].call(this, '2n+1', local);
     },

     odd: function(argument, local){
          return Selectors.Pseudo['nth-child'].call(this, '2n', local);
     },

     selected: function(){
          return this.selected;
     },

     enabled: function(){
          return (this.disabled === false);
     }

});


/*
---

script: DomReady.js

description: Contains the custom event domready.

license: MIT-style license.

requires:
- /Element.Event

provides: [DomReady]

...
*/

Element.Events.domready = {

     onAdd: function(fn){
          if (Browser.loaded) fn.call(this);
     }

};

(function(){

     var domready = function(){
          if (Browser.loaded) return;
          Browser.loaded = true;
          window.fireEvent('domready');
          document.fireEvent('domready');
     };

     window.addEvent('load', domready);

     if (Browser.Engine.trident){
          var temp = document.createElement('div');
          (function(){
               ($try(function(){
                    temp.doScroll(); // Technique by Diego Perini
                    return document.id(temp).inject(document.body).set('html', 'temp').dispose();
               })) ? domready() : arguments.callee.delay(50);
          })();
     } else if (Browser.Engine.webkit && Browser.Engine.version < 525){
          (function(){
               (['loaded', 'complete'].contains(document.readyState)) ? domready() : arguments.callee.delay(50);
          })();
     } else {
          document.addEvent('DOMContentLoaded', domready);
     }

})();


/*
---

script: JSON.js

description: JSON encoder and decoder.

license: MIT-style license.

See Also: <http://www.json.org/>

requires:
- /Array
- /String
- /Number
- /Function
- /Hash

provides: [JSON]

...
*/

var JSON = new Hash(this.JSON && {
     stringify: JSON.stringify,
     parse: JSON.parse
}).extend({

     $specialChars: {'\b': '\\b', '\t': '\\t', '\n': '\\n', '\f': '\\f', '\r': '\\r', '"' : '\\"', '\\': '\\\\'},

     $replaceChars: function(chr){
          return JSON.$specialChars[chr] || '\\u00' + Math.floor(chr.charCodeAt() / 16).toString(16) + (chr.charCodeAt() % 16).toString(16);
     },

     encode: function(obj){
          switch ($type(obj)){
               case 'string':
                    return '"' + obj.replace(/[\x00-\x1f\\"]/g, JSON.$replaceChars) + '"';
               case 'array':
                    return '[' + String(obj.map(JSON.encode).clean()) + ']';
               case 'object': case 'hash':
                    var string = [];
                    Hash.each(obj, function(value, key){
                         var json = JSON.encode(value);
                         if (json) string.push(JSON.encode(key) + ':' + json);
                    });
                    return '{' + string + '}';
               case 'number': case 'boolean': return String(obj);
               case false: return 'null';
          }
          return null;
     },

     decode: function(string, secure){
          if ($type(string) != 'string' || !string.length) return null;
          if (secure && !(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(string.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, ''))) return null;
          return eval('(' + string + ')');
     }

});

Native.implement([Hash, Array, String, Number], {

     toJSON: function(){
          return JSON.encode(this);
     }

});


/*
---

script: Cookie.js

description: Class for creating, reading, and deleting browser Cookies.

license: MIT-style license.

credits:
- Based on the functions by Peter-Paul Koch (http://quirksmode.org).

requires:
- /Options

provides: [Cookie]

...
*/

var Cookie = new Class({

     Implements: Options,

     options: {
          path: false,
          domain: false,
          duration: false,
          secure: false,
          document: document
     },

     initialize: function(key, options){
          this.key = key;
          this.setOptions(options);
     },

     write: function(value){
          value = encodeURIComponent(value);
          if (this.options.domain) value += '; domain=' + this.options.domain;
          if (this.options.path) value += '; path=' + this.options.path;
          if (this.options.duration){
               var date = new Date();
               date.setTime(date.getTime() + this.options.duration * 24 * 60 * 60 * 1000);
               value += '; expires=' + date.toGMTString();
          }
          if (this.options.secure) value += '; secure';
          this.options.document.cookie = this.key + '=' + value;
          return this;
     },

     read: function(){
          var value = this.options.document.cookie.match('(?:^|;)\\s*' + this.key.escapeRegExp() + '=([^;]*)');
          return (value) ? decodeURIComponent(value[1]) : null;
     },

     dispose: function(){
          new Cookie(this.key, $merge(this.options, {duration: -1})).write('');
          return this;
     }

});

Cookie.write = function(key, value, options){
     return new Cookie(key, options).write(value);
};

Cookie.read = function(key){
     return new Cookie(key).read();
};

Cookie.dispose = function(key, options){
     return new Cookie(key, options).dispose();
};


/*
---

script: Swiff.js

description: Wrapper for embedding SWF movies. Supports External Interface Communication.

license: MIT-style license.

credits:
- Flash detection & Internet Explorer + Flash Player 9 fix inspired by SWFObject.

requires:
- /Options
- /$util

provides: [Swiff]

...
*/

var Swiff = new Class({

     Implements: [Options],

     options: {
          id: null,
          height: 1,
          width: 1,
          container: null,
          properties: {},
          params: {
               quality: 'high',
               allowScriptAccess: 'always',
               wMode: 'transparent',
               swLiveConnect: true
          },
          callBacks: {},
          vars: {}
     },

     toElement: function(){
          return this.object;
     },

     initialize: function(path, options){
          this.instance = 'Swiff_' + $time();

          this.setOptions(options);
          options = this.options;
          var id = this.id = options.id || this.instance;
          var container = document.id(options.container);

          Swiff.CallBacks[this.instance] = {};

          var params = options.params, vars = options.vars, callBacks = options.callBacks;
          var properties = $extend({height: options.height, width: options.width}, options.properties);

          var self = this;

          for (var callBack in callBacks){
               Swiff.CallBacks[this.instance][callBack] = (function(option){
                    return function(){
                         return option.apply(self.object, arguments);
                    };
               })(callBacks[callBack]);
               vars[callBack] = 'Swiff.CallBacks.' + this.instance + '.' + callBack;
          }

          params.flashVars = Hash.toQueryString(vars);
          if (Browser.Engine.trident){
               properties.classid = 'clsid:D27CDB6E-AE6D-11cf-96B8-444553540000';
               params.movie = path;
          } else {
               properties.type = 'application/x-shockwave-flash';
               properties.data = path;
          }
          var build = '<object id="' + id + '"';
          for (var property in properties) build += ' ' + property + '="' + properties[property] + '"';
          build += '>';
          for (var param in params){
               if (params[param]) build += '<param name="' + param + '" value="' + params[param] + '" />';
          }
          build += '</object>';
          this.object = ((container) ? container.empty() : new Element('div')).set('html', build).firstChild;
     },

     replaces: function(element){
          element = document.id(element, true);
          element.parentNode.replaceChild(this.toElement(), element);
          return this;
     },

     inject: function(element){
          document.id(element, true).appendChild(this.toElement());
          return this;
     },

     remote: function(){
          return Swiff.remote.apply(Swiff, [this.toElement()].extend(arguments));
     }

});

Swiff.CallBacks = {};

Swiff.remote = function(obj, fn){
     var rs = obj.CallFunction('<invoke name="' + fn + '" returntype="javascript">' + __flash__argumentsToXML(arguments, 2) + '</invoke>');
     return eval(rs);
};


/*
---

script: Fx.js

description: Contains the basic animation logic to be extended by all other Fx Classes.

license: MIT-style license.

requires:
- /Chain
- /Events
- /Options

provides: [Fx]

...
*/

var Fx = new Class({

     Implements: [Chain, Events, Options],

     options: {
          /*
          onStart: $empty,
          onCancel: $empty,
          onComplete: $empty,
          */
          fps: 50,
          unit: false,
          duration: 500,
          link: 'ignore'
     },

     initialize: function(options){
          this.subject = this.subject || this;
          this.setOptions(options);
          this.options.duration = Fx.Durations[this.options.duration] || this.options.duration.toInt();
          var wait = this.options.wait;
          if (wait === false) this.options.link = 'cancel';
     },

     getTransition: function(){
          return function(p){
               return -(Math.cos(Math.PI * p) - 1) / 2;
          };
     },

     step: function(){
          var time = $time();
          if (time < this.time + this.options.duration){
               var delta = this.transition((time - this.time) / this.options.duration);
               this.set(this.compute(this.from, this.to, delta));
          } else {
               this.set(this.compute(this.from, this.to, 1));
               this.complete();
          }
     },

     set: function(now){
          return now;
     },

     compute: function(from, to, delta){
          return Fx.compute(from, to, delta);
     },

     check: function(){
          if (!this.timer) return true;
          switch (this.options.link){
               case 'cancel': this.cancel(); return true;
               case 'chain': this.chain(this.caller.bind(this, arguments)); return false;
          }
          return false;
     },

     start: function(from, to){
          if (!this.check(from, to)) return this;
          this.from = from;
          this.to = to;
          this.time = 0;
          this.transition = this.getTransition();
          this.startTimer();
          this.onStart();
          return this;
     },

     complete: function(){
          if (this.stopTimer()) this.onComplete();
          return this;
     },

     cancel: function(){
          if (this.stopTimer()) this.onCancel();
          return this;
     },

     onStart: function(){
          this.fireEvent('start', this.subject);
     },

     onComplete: function(){
          this.fireEvent('complete', this.subject);
          if (!this.callChain()) this.fireEvent('chainComplete', this.subject);
     },

     onCancel: function(){
          this.fireEvent('cancel', this.subject).clearChain();
     },

     pause: function(){
          this.stopTimer();
          return this;
     },

     resume: function(){
          this.startTimer();
          return this;
     },

     stopTimer: function(){
          if (!this.timer) return false;
          this.time = $time() - this.time;
          this.timer = $clear(this.timer);
          return true;
     },

     startTimer: function(){
          if (this.timer) return false;
          this.time = $time() - this.time;
          this.timer = this.step.periodical(Math.round(1000 / this.options.fps), this);
          return true;
     }

});

Fx.compute = function(from, to, delta){
     return (to - from) * delta + from;
};

Fx.Durations = {'short': 250, 'normal': 500, 'long': 1000};


/*
---

script: Fx.CSS.js

description: Contains the CSS animation logic. Used by Fx.Tween, Fx.Morph, Fx.Elements.

license: MIT-style license.

requires:
- /Fx
- /Element.Style

provides: [Fx.CSS]

...
*/

Fx.CSS = new Class({

     Extends: Fx,

     //prepares the base from/to object

     prepare: function(element, property, values){
          values = $splat(values);
          var values1 = values[1];
          if (!$chk(values1)){
               values[1] = values[0];
               values[0] = element.getStyle(property);
          }
          var parsed = values.map(this.parse);
          return {from: parsed[0], to: parsed[1]};
     },

     //parses a value into an array

     parse: function(value){
          value = $lambda(value)();
          value = (typeof value == 'string') ? value.split(' ') : $splat(value);
          return value.map(function(val){
               val = String(val);
               var found = false;
               Fx.CSS.Parsers.each(function(parser, key){
                    if (found) return;
                    var parsed = parser.parse(val);
                    if ($chk(parsed)) found = {value: parsed, parser: parser};
               });
               found = found || {value: val, parser: Fx.CSS.Parsers.String};
               return found;
          });
     },

     //computes by a from and to prepared objects, using their parsers.

     compute: function(from, to, delta){
          var computed = [];
          (Math.min(from.length, to.length)).times(function(i){
               computed.push({value: from[i].parser.compute(from[i].value, to[i].value, delta), parser: from[i].parser});
          });
          computed.$family = {name: 'fx:css:value'};
          return computed;
     },

     //serves the value as settable

     serve: function(value, unit){
          if ($type(value) != 'fx:css:value') value = this.parse(value);
          var returned = [];
          value.each(function(bit){
               returned = returned.concat(bit.parser.serve(bit.value, unit));
          });
          return returned;
     },

     //renders the change to an element

     render: function(element, property, value, unit){
          element.setStyle(property, this.serve(value, unit));
     },

     //searches inside the page css to find the values for a selector

     search: function(selector){
          if (Fx.CSS.Cache[selector]) return Fx.CSS.Cache[selector];
          var to = {};
          Array.each(document.styleSheets, function(sheet, j){
               var href = sheet.href;
               if (href && href.contains('://') && !href.contains(document.domain)) return;
               var rules = sheet.rules || sheet.cssRules;
               Array.each(rules, function(rule, i){
                    if (!rule.style) return;
                    var selectorText = (rule.selectorText) ? rule.selectorText.replace(/^\w+/, function(m){
                         return m.toLowerCase();
                    }) : null;
                    if (!selectorText || !selectorText.test('^' + selector + '$')) return;
                    Element.Styles.each(function(value, style){
                         if (!rule.style[style] || Element.ShortStyles[style]) return;
                         value = String(rule.style[style]);
                         to[style] = (value.test(/^rgb/)) ? value.rgbToHex() : value;
                    });
               });
          });
          return Fx.CSS.Cache[selector] = to;
     }

});

Fx.CSS.Cache = {};

Fx.CSS.Parsers = new Hash({

     Color: {
          parse: function(value){
               if (value.match(/^#[0-9a-f]{3,6}$/i)) return value.hexToRgb(true);
               return ((value = value.match(/(\d+),\s*(\d+),\s*(\d+)/))) ? [value[1], value[2], value[3]] : false;
          },
          compute: function(from, to, delta){
               return from.map(function(value, i){
                    return Math.round(Fx.compute(from[i], to[i], delta));
               });
          },
          serve: function(value){
               return value.map(Number);
          }
     },

     Number: {
          parse: parseFloat,
          compute: Fx.compute,
          serve: function(value, unit){
               return (unit) ? value + unit : value;
          }
     },

     String: {
          parse: $lambda(false),
          compute: $arguments(1),
          serve: $arguments(0)
     }

});


/*
---

script: Fx.Tween.js

description: Formerly Fx.Style, effect to transition any CSS property for an element.

license: MIT-style license.

requires:
- /Fx.CSS

provides: [Fx.Tween, Element.fade, Element.highlight]

...
*/

Fx.Tween = new Class({

     Extends: Fx.CSS,

     initialize: function(element, options){
          this.element = this.subject = document.id(element);
          this.parent(options);
     },

     set: function(property, now){
          if (arguments.length == 1){
               now = property;
               property = this.property || this.options.property;
          }
          this.render(this.element, property, now, this.options.unit);
          return this;
     },

     start: function(property, from, to){
          if (!this.check(property, from, to)) return this;
          var args = Array.flatten(arguments);
          this.property = this.options.property || args.shift();
          var parsed = this.prepare(this.element, this.property, args);
          return this.parent(parsed.from, parsed.to);
     }

});

Element.Properties.tween = {

     set: function(options){
          var tween = this.retrieve('tween');
          if (tween) tween.cancel();
          return this.eliminate('tween').store('tween:options', $extend({link: 'cancel'}, options));
     },

     get: function(options){
          if (options || !this.retrieve('tween')){
               if (options || !this.retrieve('tween:options')) this.set('tween', options);
               this.store('tween', new Fx.Tween(this, this.retrieve('tween:options')));
          }
          return this.retrieve('tween');
     }

};

Element.implement({

     tween: function(property, from, to){
          this.get('tween').start(arguments);
          return this;
     },

     fade: function(how){
          var fade = this.get('tween'), o = 'opacity', toggle;
          how = $pick(how, 'toggle');
          switch (how){
               case 'in': fade.start(o, 1); break;
               case 'out': fade.start(o, 0); break;
               case 'show': fade.set(o, 1); break;
               case 'hide': fade.set(o, 0); break;
               case 'toggle':
                    var flag = this.retrieve('fade:flag', this.get('opacity') == 1);
                    fade.start(o, (flag) ? 0 : 1);
                    this.store('fade:flag', !flag);
                    toggle = true;
               break;
               default: fade.start(o, arguments);
          }
          if (!toggle) this.eliminate('fade:flag');
          return this;
     },

     highlight: function(start, end){
          if (!end){
               end = this.retrieve('highlight:original', this.getStyle('background-color'));
               end = (end == 'transparent') ? '#fff' : end;
          }
          var tween = this.get('tween');
          tween.start('background-color', start || '#ffff88', end).chain(function(){
               this.setStyle('background-color', this.retrieve('highlight:original'));
               tween.callChain();
          }.bind(this));
          return this;
     }

});


/*
---

script: Fx.Morph.js

description: Formerly Fx.Styles, effect to transition any number of CSS properties for an element using an object of rules, or CSS based selector rules.

license: MIT-style license.

requires:
- /Fx.CSS

provides: [Fx.Morph]

...
*/

Fx.Morph = new Class({

     Extends: Fx.CSS,

     initialize: function(element, options){
          this.element = this.subject = document.id(element);
          this.parent(options);
     },

     set: function(now){
          if (typeof now == 'string') now = this.search(now);
          for (var p in now) this.render(this.element, p, now[p], this.options.unit);
          return this;
     },

     compute: function(from, to, delta){
          var now = {};
          for (var p in from) now[p] = this.parent(from[p], to[p], delta);
          return now;
     },

     start: function(properties){
          if (!this.check(properties)) return this;
          if (typeof properties == 'string') properties = this.search(properties);
          var from = {}, to = {};
          for (var p in properties){
               var parsed = this.prepare(this.element, p, properties[p]);
               from[p] = parsed.from;
               to[p] = parsed.to;
          }
          return this.parent(from, to);
     }

});

Element.Properties.morph = {

     set: function(options){
          var morph = this.retrieve('morph');
          if (morph) morph.cancel();
          return this.eliminate('morph').store('morph:options', $extend({link: 'cancel'}, options));
     },

     get: function(options){
          if (options || !this.retrieve('morph')){
               if (options || !this.retrieve('morph:options')) this.set('morph', options);
               this.store('morph', new Fx.Morph(this, this.retrieve('morph:options')));
          }
          return this.retrieve('morph');
     }

};

Element.implement({

     morph: function(props){
          this.get('morph').start(props);
          return this;
     }

});


/*
---

script: Fx.Transitions.js

description: Contains a set of advanced transitions to be used with any of the Fx Classes.

license: MIT-style license.

credits:
- Easing Equations by Robert Penner, <http://www.robertpenner.com/easing/>, modified and optimized to be used with MooTools.

requires:
- /Fx

provides: [Fx.Transitions]

...
*/

Fx.implement({

     getTransition: function(){
          var trans = this.options.transition || Fx.Transitions.Sine.easeInOut;
          if (typeof trans == 'string'){
               var data = trans.split(':');
               trans = Fx.Transitions;
               trans = trans[data[0]] || trans[data[0].capitalize()];
               if (data[1]) trans = trans['ease' + data[1].capitalize() + (data[2] ? data[2].capitalize() : '')];
          }
          return trans;
     }

});

Fx.Transition = function(transition, params){
     params = $splat(params);
     return $extend(transition, {
          easeIn: function(pos){
               return transition(pos, params);
          },
          easeOut: function(pos){
               return 1 - transition(1 - pos, params);
          },
          easeInOut: function(pos){
               return (pos <= 0.5) ? transition(2 * pos, params) / 2 : (2 - transition(2 * (1 - pos), params)) / 2;
          }
     });
};

Fx.Transitions = new Hash({

     linear: $arguments(0)

});

Fx.Transitions.extend = function(transitions){
     for (var transition in transitions) Fx.Transitions[transition] = new Fx.Transition(transitions[transition]);
};

Fx.Transitions.extend({

     Pow: function(p, x){
          return Math.pow(p, x[0] || 6);
     },

     Expo: function(p){
          return Math.pow(2, 8 * (p - 1));
     },

     Circ: function(p){
          return 1 - Math.sin(Math.acos(p));
     },

     Sine: function(p){
          return 1 - Math.sin((1 - p) * Math.PI / 2);
     },

     Back: function(p, x){
          x = x[0] || 1.618;
          return Math.pow(p, 2) * ((x + 1) * p - x);
     },

     Bounce: function(p){
          var value;
          for (var a = 0, b = 1; 1; a += b, b /= 2){
               if (p >= (7 - 4 * a) / 11){
                    value = b * b - Math.pow((11 - 6 * a - 11 * p) / 4, 2);
                    break;
               }
          }
          return value;
     },

     Elastic: function(p, x){
          return Math.pow(2, 10 * --p) * Math.cos(20 * p * Math.PI * (x[0] || 1) / 3);
     }

});

['Quad', 'Cubic', 'Quart', 'Quint'].each(function(transition, i){
     Fx.Transitions[transition] = new Fx.Transition(function(p){
          return Math.pow(p, [i + 2]);
     });
});


/*
---

script: Request.js

description: Powerful all purpose Request Class. Uses XMLHTTPRequest.

license: MIT-style license.

requires:
- /Element
- /Chain
- /Events
- /Options
- /Browser

provides: [Request]

...
*/

var Request = new Class({

     Implements: [Chain, Events, Options],

     options: {/*
          onRequest: $empty,
          onComplete: $empty,
          onCancel: $empty,
          onSuccess: $empty,
          onFailure: $empty,
          onException: $empty,*/
          url: '',
          data: '',
          headers: {
               'X-Requested-With': 'XMLHttpRequest',
               'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
          },
          async: true,
          format: false,
          method: 'post',
          link: 'ignore',
          isSuccess: null,
          emulation: true,
          urlEncoded: true,
          encoding: 'utf-8',
          evalScripts: false,
          evalResponse: false,
          noCache: false
     },

     initialize: function(options){
          this.xhr = new Browser.Request();
          this.setOptions(options);
          this.options.isSuccess = this.options.isSuccess || this.isSuccess;
          this.headers = new Hash(this.options.headers);
     },

     onStateChange: function(){
          if (this.xhr.readyState != 4 || !this.running) return;
          this.running = false;
          this.status = 0;
          $try(function(){
               this.status = this.xhr.status;
          }.bind(this));
          this.xhr.onreadystatechange = $empty;
          if (this.options.isSuccess.call(this, this.status)){
               this.response = {text: this.xhr.responseText, xml: this.xhr.responseXML};
               this.success(this.response.text, this.response.xml);
          } else {
               this.response = {text: null, xml: null};
               this.failure();
          }
     },

     isSuccess: function(){
          return ((this.status >= 200) && (this.status < 300));
     },

     processScripts: function(text){
          if (this.options.evalResponse || (/(ecma|java)script/).test(this.getHeader('Content-type'))) return $exec(text);
          return text.stripScripts(this.options.evalScripts);
     },

     success: function(text, xml){
          this.onSuccess(this.processScripts(text), xml);
     },

     onSuccess: function(){
          this.fireEvent('complete', arguments).fireEvent('success', arguments).callChain();
     },

     failure: function(){
          this.onFailure();
     },

     onFailure: function(){
          this.fireEvent('complete').fireEvent('failure', this.xhr);
     },

     setHeader: function(name, value){
          this.headers.set(name, value);
          return this;
     },

     getHeader: function(name){
          return $try(function(){
               return this.xhr.getResponseHeader(name);
          }.bind(this));
     },

     check: function(){
          if (!this.running) return true;
          switch (this.options.link){
               case 'cancel': this.cancel(); return true;
               case 'chain': this.chain(this.caller.bind(this, arguments)); return false;
          }
          return false;
     },

     send: function(options){
          if (!this.check(options)) return this;
          this.running = true;

          var type = $type(options);
          if (type == 'string' || type == 'element') options = {data: options};

          var old = this.options;
          options = $extend({data: old.data, url: old.url, method: old.method}, options);
          var data = options.data, url = String(options.url), method = options.method.toLowerCase();

          switch ($type(data)){
               case 'element': data = document.id(data).toQueryString(); break;
               case 'object': case 'hash': data = Hash.toQueryString(data);
          }

          if (this.options.format){
               var format = 'format=' + this.options.format;
               data = (data) ? format + '&' + data : format;
          }

          if (this.options.emulation && !['get', 'post'].contains(method)){
               var _method = '_method=' + method;
               data = (data) ? _method + '&' + data : _method;
               method = 'post';
          }

          if (this.options.urlEncoded && method == 'post'){
               var encoding = (this.options.encoding) ? '; charset=' + this.options.encoding : '';
               this.headers.set('Content-type', 'application/x-www-form-urlencoded' + encoding);
          }

          if (this.options.noCache){
               var noCache = 'noCache=' + new Date().getTime();
               data = (data) ? noCache + '&' + data : noCache;
          }

          var trimPosition = url.lastIndexOf('/');
          if (trimPosition > -1 && (trimPosition = url.indexOf('#')) > -1) url = url.substr(0, trimPosition);

          if (data && method == 'get'){
               url = url + (url.contains('?') ? '&' : '?') + data;
               data = null;
          }

          this.xhr.open(method.toUpperCase(), url, this.options.async);

          this.xhr.onreadystatechange = this.onStateChange.bind(this);

          this.headers.each(function(value, key){
               try {
                    this.xhr.setRequestHeader(key, value);
               } catch (e){
                    this.fireEvent('exception', [key, value]);
               }
          }, this);

          this.fireEvent('request');
          this.xhr.send(data);
          if (!this.options.async) this.onStateChange();
          return this;
     },

     cancel: function(){
          if (!this.running) return this;
          this.running = false;
          this.xhr.abort();
          this.xhr.onreadystatechange = $empty;
          this.xhr = new Browser.Request();
          this.fireEvent('cancel');
          return this;
     }

});

(function(){

var methods = {};
['get', 'post', 'put', 'delete', 'GET', 'POST', 'PUT', 'DELETE'].each(function(method){
     methods[method] = function(){
          var params = Array.link(arguments, {url: String.type, data: $defined});
          return this.send($extend(params, {method: method}));
     };
});

Request.implement(methods);

})();

Element.Properties.send = {

     set: function(options){
          var send = this.retrieve('send');
          if (send) send.cancel();
          return this.eliminate('send').store('send:options', $extend({
               data: this, link: 'cancel', method: this.get('method') || 'post', url: this.get('action')
          }, options));
     },

     get: function(options){
          if (options || !this.retrieve('send')){
               if (options || !this.retrieve('send:options')) this.set('send', options);
               this.store('send', new Request(this.retrieve('send:options')));
          }
          return this.retrieve('send');
     }

};

Element.implement({

     send: function(url){
          var sender = this.get('send');
          sender.send({data: this, url: url || sender.options.url});
          return this;
     }

});


/*
---

script: Request.HTML.js

description: Extends the basic Request Class with additional methods for interacting with HTML responses.

license: MIT-style license.

requires:
- /Request
- /Element

provides: [Request.HTML]

...
*/

Request.HTML = new Class({

     Extends: Request,

     options: {
          update: false,
          append: false,
          evalScripts: true,
          filter: false
     },

     processHTML: function(text){
          var match = text.match(/<body[^>]*>([\s\S]*?)<\/body>/i);
          text = (match) ? match[1] : text;

          var container = new Element('div');

          return $try(function(){
               var root = '<root>' + text + '</root>', doc;
               if (Browser.Engine.trident){
                    doc = new ActiveXObject('Microsoft.XMLDOM');
                    doc.async = false;
                    doc.loadXML(root);
               } else {
                    doc = new DOMParser().parseFromString(root, 'text/xml');
               }
               root = doc.getElementsByTagName('root')[0];
               if (!root) return null;
               for (var i = 0, k = root.childNodes.length; i < k; i++){
                    var child = Element.clone(root.childNodes[i], true, true);
                    if (child) container.grab(child);
               }
               return container;
          }) || container.set('html', text);
     },

     success: function(text){
          var options = this.options, response = this.response;

          response.html = text.stripScripts(function(script){
               response.javascript = script;
          });

          var temp = this.processHTML(response.html);

          response.tree = temp.childNodes;
          response.elements = temp.getElements('*');

          if (options.filter) response.tree = response.elements.filter(options.filter);
          if (options.update) document.id(options.update).empty().set('html', response.html);
          else if (options.append) document.id(options.append).adopt(temp.getChildren());
          if (options.evalScripts) $exec(response.javascript);

          this.onSuccess(response.tree, response.elements, response.html, response.javascript);
     }

});

Element.Properties.load = {

     set: function(options){
          var load = this.retrieve('load');
          if (load) load.cancel();
          return this.eliminate('load').store('load:options', $extend({data: this, link: 'cancel', update: this, method: 'get'}, options));
     },

     get: function(options){
          if (options || ! this.retrieve('load')){
               if (options || !this.retrieve('load:options')) this.set('load', options);
               this.store('load', new Request.HTML(this.retrieve('load:options')));
          }
          return this.retrieve('load');
     }

};

Element.implement({

     load: function(){
          this.get('load').send(Array.link(arguments, {data: Object.type, url: String.type}));
          return this;
     }

});


/*
---

script: Request.JSON.js

description: Extends the basic Request Class with additional methods for sending and receiving JSON data.

license: MIT-style license.

requires:
- /Request JSON

provides: [Request.HTML]

...
*/

Request.JSON = new Class({

     Extends: Request,

     options: {
          secure: true
     },

     initialize: function(options){
          this.parent(options);
          this.headers.extend({'Accept': 'application/json', 'X-Request': 'JSON'});
     },

     success: function(text){
          this.response.json = JSON.decode(text, this.options.secure);
          this.onSuccess(this.response.json, text);
     }

});