var MooTools = {
	version: '1.11' 
};

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

function $type(obj){
	if (!$defined(obj)) return false;
	if (obj.htmlElement) return 'element';
	var type = typeof obj;
	if (type == 'object' && obj.nodeName){
		switch(obj.nodeType){
			case 1: return 'element';
			case 3: return (/\S/).test(obj.nodeValue) ? 'textnode' : 'whitespace';
		}
	}
	if (type == 'object' || type == 'function'){
		switch(obj.constructor){
			case Array: return 'array';
			case RegExp: return 'regexp';
			case Class: return 'class';
		}
		if (typeof obj.length == 'number'){
			if (obj.item) return 'collection';
			if (obj.callee) return 'arguments';
		}
	}
	return type;
};

function $merge(){
	var mix = {};
	for (var i = 0; i < arguments.length; i++){
		for (var property in arguments[i]){
			var ap = arguments[i][property];
			var mp = mix[property];
			if (mp && $type(ap) == 'object' && $type(mp) == 'object') mix[property] = $merge(mp, ap);
			else mix[property] = ap;
		}
	}
	return mix;
};

var $extend = function(){
	var args = arguments;
	if (!args[1]) args = [this, args[0]];
	for (var property in args[1]) args[0][property] = args[1][property];
	return args[0];
};

var $native = function(){
	for (var i = 0, l = arguments.length; i < l; i++){
		arguments[i].extend = function(props){
			for (var prop in props){
				if (!this.prototype[prop]) this.prototype[prop] = props[prop];
				if (!this[prop]) this[prop] = $native.generic(prop);
			}
		};
	}
};

$native.generic = function(prop){
	return function(bind){
		return this.prototype[prop].apply(bind, Array.prototype.slice.call(arguments, 1));
	};
};

$native(Function, Array, String, Number);

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

function $pick(obj, picked){
	return $defined(obj) ? obj : picked;
};

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

function $time(){
	return new Date().getTime();
};

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

var Abstract = function(obj){
	obj = obj || {};
	obj.extend = $extend;
	return obj;
};

var Window = new Abstract(window);
var Document = new Abstract(document);
document.head = document.getElementsByTagName('head')[0];

window.xpath = !!(document.evaluate);
if (window.ActiveXObject) window.ie = window[window.XMLHttpRequest ? 'ie7' : 'ie6'] = true;
else if (document.childNodes && !document.all && !navigator.taintEnabled) window.webkit = window[window.xpath ? 'webkit420' : 'webkit419'] = true;
else if (document.getBoxObjectFor != null) window.gecko = true;

window.khtml = window.webkit;

Object.extend = $extend;

if (typeof HTMLElement == 'undefined'){
	var HTMLElement = function(){};
	if (window.webkit) document.createElement("iframe"); //fixes safari
	HTMLElement.prototype = (window.webkit) ? window["[[DOMElement.prototype]]"] : {};
}
HTMLElement.prototype.htmlElement = function(){};


if (window.ie6) try {document.execCommand("BackgroundImageCache", false, true);} catch(e){};





var Class = function(properties){
	var klass = function(){
		return (arguments[0] !== null && this.initialize && $type(this.initialize) == 'function') ? this.initialize.apply(this, arguments) : this;
	};
	$extend(klass, this);
	klass.prototype = properties;
	klass.constructor = Class;
	return klass;
};



Class.empty = function(){};

Class.prototype = {

	/*
	Property: extend
		Returns the copy of the Class extended with the passed in properties.

	Arguments:
		properties - the properties to add to the base class in this new Class.

	Example:
		(start code)
		var Animal = new Class({
			initialize: function(age){
				this.age = age;
			}
		});
		var Cat = Animal.extend({
			initialize: function(name, age){
				this.parent(age); //will call the previous initialize;
				this.name = name;
			}
		});
		var myCat = new Cat('Micia', 20);
		alert(myCat.name); //alerts 'Micia'
		alert(myCat.age); //alerts 20
		(end)
	*/

	extend: function(properties){
		var proto = new this(null);
		for (var property in properties){
			var pp = proto[property];
			proto[property] = Class.Merge(pp, properties[property]);
		}
		return new Class(proto);
	},

	/*
	Property: implement
		Implements the passed in properties to the base Class prototypes, altering the base class, unlike <Class.extend>.

	Arguments:
		properties - the properties to add to the base class.

	Example:
		(start code)
		var Animal = new Class({
			initialize: function(age){
				this.age = age;
			}
		});
		Animal.implement({
			setName: function(name){
				this.name = name
			}
		});
		var myAnimal = new Animal(20);
		myAnimal.setName('Micia');
		alert(myAnimal.name); //alerts 'Micia'
		(end)
	*/

	implement: function(){
		for (var i = 0, l = arguments.length; i < l; i++) $extend(this.prototype, arguments[i]);
	}

};


Class.Merge = function(previous, current){
	if (previous && previous != current){
		var type = $type(current);
		if (type != $type(previous)) return current;
		switch(type){
			case 'function':
				var merged = function(){
					this.parent = arguments.callee.parent;
					return current.apply(this, arguments);
				};
				merged.parent = previous;
				return merged;
			case 'object': return $merge(previous, current);
		}
	}
	return current;
};





var Chain = new Class({

	/*
	Property: chain
		adds a function to the Chain instance stack.

	Arguments:
		fn - the function to append.
	*/

	chain: function(fn){
		this.chains = this.chains || [];
		this.chains.push(fn);
		return this;
	},

	/*
	Property: callChain
		Executes the first function of the Chain instance stack, then removes it. The first function will then become the second.
	*/

	callChain: function(){
		if (this.chains && this.chains.length) this.chains.shift().delay(10, this);
	},

	/*
	Property: clearChain
		Clears the stack of a Chain instance.
	*/

	clearChain: function(){
		this.chains = [];
	}

});



var Events = new Class({

	/*
	Property: addEvent
		adds an event to the stack of events of the Class instance.

	Arguments:
		type - string; the event name (e.g. 'onComplete')
		fn - function to execute
	*/

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

	/*
	Property: fireEvent
		fires all events of the specified type in the Class instance.

	Arguments:
		type - string; the event name (e.g. 'onComplete')
		args - array or single object; arguments to pass to the function; if more than one argument, must be an array
		delay - (integer) delay (in ms) to wait to execute the event

	Example:
	(start code)
	var Widget = new Class({
		initialize: function(arg1, arg2){
			...
			this.fireEvent("onInitialize", [arg1, arg2], 50);
		}
	});
	Widget.implement(new Events);
	(end)
	*/

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

	/*
	Property: removeEvent
		removes an event from the stack of events of the Class instance.

	Arguments:
		type - string; the event name (e.g. 'onComplete')
		fn - function that was added
	*/

	removeEvent: function(type, fn){
		if (this.$events && this.$events[type]) this.$events[type].remove(fn);
		return this;
	}

});



var Options = new Class({

	/*
	Property: setOptions
		sets this.options

	Arguments:
		defaults - object; the default set of options
		options - object; the user entered options. can be empty too.

	Note:
		if your Class has <Events> implemented, every option beginning with on, followed by a capital letter (onComplete) becomes an Class instance event.
	*/

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

});







Array.extend({

	/*
	Property: forEach
		Iterates through an array; This method is only available for browsers without native *forEach* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:forEach>

		*forEach* executes the provided function (callback) once for each element present in the array. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - the object to bind "this" to (see <Function.bind>)

	Example:
		>['apple','banana','lemon'].each(function(item, index){
		>	alert(index + " = " + item); //alerts "0 = apple" etc.
		>}, bindObj); //optional second arg for binding, not used here
	*/

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

	/*
	Property: filter
		This method is provided only for browsers without native *filter* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:Array:filter>

		*filter* calls a provided callback function once for each element in an array, and constructs a new array of all the values for which callback returns a true value. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values. Array elements which do not pass the callback test are simply skipped, and are not included in the new array.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - the object to bind "this" to (see <Function.bind>)

	Example:
		>var biggerThanTwenty = [10,3,25,100].filter(function(item, index){
		> return item > 20;
		>});
		>//biggerThanTwenty = [25,100]
	*/

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

	/*
	Property: map
		This method is provided only for browsers without native *map* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:map>

		*map* calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - the object to bind "this" to (see <Function.bind>)

	Example:
		>var timesTwo = [1,2,3].map(function(item, index){
		> return item*2;
		>});
		>//timesTwo = [2,4,6];
	*/

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

	/*
	Property: every
		This method is provided only for browsers without native *every* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:every>

		*every* executes the provided callback function once for each element present in the array until it finds one where callback returns a false value. If such an element is found, the every method immediately returns false. Otherwise, if callback returned a true value for all elements, every will return true. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - the object to bind "this" to (see <Function.bind>)

	Example:
		>var areAllBigEnough = [10,4,25,100].every(function(item, index){
		> return item > 20;
		>});
		>//areAllBigEnough = false
	*/

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

	/*
	Property: some
		This method is provided only for browsers without native *some* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:some>

		*some* executes the callback function once for each element present in the array until it finds one where callback returns a true value. If such an element is found, some immediately returns true. Otherwise, some returns false. callback is invoked only for indexes of the array which have assigned values; it is not invoked for indexes which have been deleted or which have never been assigned values.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - the object to bind "this" to (see <Function.bind>)

	Example:
		>var isAnyBigEnough = [10,4,25,100].some(function(item, index){
		> return item > 20;
		>});
		>//isAnyBigEnough = true
	*/

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

	/*
	Property: indexOf
		This method is provided only for browsers without native *indexOf* support.
		For more info see <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:indexOf>

		*indexOf* compares a search element to elements of the Array using strict equality (the same method used by the ===, or triple-equals, operator).

	Arguments:
		item - any type of object; element to locate in the array
		from - integer; optional; the index of the array at which to begin the search (defaults to 0)

	Example:
		>['apple','lemon','banana'].indexOf('lemon'); //returns 1
		>['apple','lemon'].indexOf('banana'); //returns -1
	*/

	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;
	},

	/*
	Property: each
		Same as <Array.forEach>.

	Arguments:
		fn - function to execute with each item in the array; passed the item and the index of that item in the array
		bind - optional, the object that the "this" of the function will refer to.

	Example:
		>var Animals = ['Cat', 'Dog', 'Coala'];
		>Animals.each(function(animal){
		>	document.write(animal)
		>});
	*/

	/*
	Property: copy
		returns a copy of the array.

	Returns:
		a new array which is a copy of the current one.

	Arguments:
		start - integer; optional; the index where to start the copy, default is 0. If negative, it is taken as the offset from the end of the array.
		length - integer; optional; the number of elements to copy. By default, copies all elements from start to the end of the array.

	Example:
		>var letters = ["a","b","c"];
		>var copy = letters.copy();		// ["a","b","c"] (new instance)
	*/

	copy: function(start, length){
		start = start || 0;
		if (start < 0) start = this.length + start;
		length = length || (this.length - start);
		var newArray = [];
		for (var i = 0; i < length; i++) newArray[i] = this[start++];
		return newArray;
	},

	/*
	Property: remove
		Removes all occurrences of an item from the array.

	Arguments:
		item - the item to remove

	Returns:
		the Array with all occurrences of the item removed.

	Example:
		>["1","2","3","2"].remove("2") // ["1","3"];
	*/

	remove: function(item){
		var i = 0;
		var len = this.length;
		while (i < len){
			if (this[i] === item){
				this.splice(i, 1);
				len--;
			} else {
				i++;
			}
		}
		return this;
	},

	/*
	Property: contains
		Tests an array for the presence of an item.

	Arguments:
		item - the item to search for in the array.
		from - integer; optional; the index at which to begin the search, default is 0. If negative, it is taken as the offset from the end of the array.

	Returns:
		true - the item was found
		false - it wasn't

	Example:
		>["a","b","c"].contains("a"); // true
		>["a","b","c"].contains("d"); // false
	*/

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

	/*
	Property: associate
		Creates an object with key-value pairs based on the array of keywords passed in
		and the current content of the array.

	Arguments:
		keys - the array of keywords.

	Example:
		(start code)
		var Animals = ['Cat', 'Dog', 'Coala', 'Lizard'];
		var Speech = ['Miao', 'Bau', 'Fruuu', 'Mute'];
		var Speeches = Animals.associate(Speech);
		//Speeches['Miao'] is now Cat.
		//Speeches['Bau'] is now Dog.
		//...
		(end)
	*/

	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;
	},

	/*
	Property: extend
		Extends an array with another one.

	Arguments:
		array - the array to extend ours with

	Example:
		>var Animals = ['Cat', 'Dog', 'Coala'];
		>Animals.extend(['Lizard']);
		>//Animals is now: ['Cat', 'Dog', 'Coala', 'Lizard'];
	*/

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

	/*
	Property: merge
		merges an array in another array, without duplicates. (case- and type-sensitive)

	Arguments:
		array - the array to merge from.

	Example:
		>['Cat','Dog'].merge(['Dog','Coala']); //returns ['Cat','Dog','Coala']
	*/

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

	/*
	Property: include
		includes the passed in element in the array, only if its not already present. (case- and type-sensitive)

	Arguments:
		item - item to add to the array (if not present)

	Example:
		>['Cat','Dog'].include('Dog'); //returns ['Cat','Dog']
		>['Cat','Dog'].include('Coala'); //returns ['Cat','Dog','Coala']
	*/

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

	/*
	Property: getRandom
		returns a random item in the Array
	*/

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

	/*
	Property: getLast
		returns the last item in the Array
	*/

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

});


Array.prototype.each = Array.prototype.forEach;
Array.each = Array.forEach;





function $A(array){
	return Array.copy(array);
};



function $each(iterable, fn, bind){
	if (iterable && typeof iterable.length == 'number' && $type(iterable) != 'object'){
		Array.forEach(iterable, fn, bind);
	} else {
		 for (var name in iterable) fn.call(bind || iterable, iterable[name], name);
	}
};



Array.prototype.test = Array.prototype.contains;


String.extend({

	/*
	Property: test
		Tests a string with a regular expression.

	Arguments:
		regex - a string or regular expression object, the regular expression you want to match the string with
		params - optional, if first parameter is a string, any parameters you want to pass to the regex ('g' has no effect)

	Returns:
		true if a match for the regular expression is found in the string, false if not.
		See <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Objects:RegExp:test>

	Example:
		>"I like cookies".test("cookie"); // returns true
		>"I like cookies".test("COOKIE", "i") // ignore case, returns true
		>"I like cookies".test("cake"); // returns false
	*/

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

	/*
	Property: toInt
		parses a string to an integer.

	Returns:
		either an int or "NaN" if the string is not a number.

	Example:
		>var value = "10px".toInt(); // value is 10
	*/

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

	/*
	Property: toFloat
		parses a string to an float.

	Returns:
		either a float or "NaN" if the string is not a number.

	Example:
		>var value = "10.848".toFloat(); // value is 10.848
	*/

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

	/*
	Property: camelCase
		Converts a hiphenated string to a camelcase string.

	Example:
		>"I-like-cookies".camelCase(); //"ILikeCookies"

	Returns:
		the camel cased string
	*/

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

	/*
	Property: hyphenate
		Converts a camelCased string to a hyphen-ated string.

	Example:
		>"ILikeCookies".hyphenate(); //"I-like-cookies"
	*/

	hyphenate: function(){
		return this.replace(/\w[A-Z]/g, function(match){
			return (match.charAt(0) + '-' + match.charAt(1).toLowerCase());
		});
	},

	/*
	Property: capitalize
		Converts the first letter in each word of a string to Uppercase.

	Example:
		>"i like cookies".capitalize(); //"I Like Cookies"

	Returns:
		the capitalized string
	*/

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

	/*
	Property: trim
		Trims the leading and trailing spaces off a string.

	Example:
		>"    i like cookies     ".trim() //"i like cookies"

	Returns:
		the trimmed string
	*/

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

	/*
	Property: clean
		trims (<String.trim>) a string AND removes all the double spaces in a string.

	Returns:
		the cleaned string

	Example:
		>" i      like     cookies      \n\n".clean() //"i like cookies"
	*/

	clean: function(){
		return this.replace(/\s{2,}/g, ' ').trim();
	},

	/*
	Property: rgbToHex
		Converts an RGB value to hexidecimal. The string must be in the format of "rgb(255,255,255)" or "rgba(255,255,255,1)";

	Arguments:
		array - boolean value, defaults to false. Use true if you want the array ['FF','33','00'] as output instead of "#FF3300"

	Returns:
		hex string or array. returns "transparent" if the output is set as string and the fourth value of rgba in input string is 0.

	Example:
		>"rgb(17,34,51)".rgbToHex(); //"#112233"
		>"rgba(17,34,51,0)".rgbToHex(); //"transparent"
		>"rgb(17,34,51)".rgbToHex(true); //['11','22','33']
	*/

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

	/*
	Property: hexToRgb
		Converts a hexidecimal color value to RGB. Input string must be the hex color value (with or without the hash). Also accepts triplets ('333');

	Arguments:
		array - boolean value, defaults to false. Use true if you want the array [255,255,255] as output instead of "rgb(255,255,255)";

	Returns:
		rgb string or array.

	Example:
		>"#112233".hexToRgb(); //"rgb(17,34,51)"
		>"#112233".hexToRgb(true); //[17,34,51]
	*/

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

	/*
	Property: contains
		checks if the passed in string is contained in the String. also accepts an optional second parameter, to check if the string is contained in a list of separated values.

	Example:
		>'a b c'.contains('c', ' '); //true
		>'a bc'.contains('bc'); //true
		>'a bc'.contains('b', ' '); //false
	*/

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

	/*
	Property: escapeRegExp
		Returns string with escaped regular expression characters

	Example:
		>var search = 'animals.sheeps[1]'.escapeRegExp(); // search is now 'animals\.sheeps\[1\]'

	Returns:
		Escaped string
	*/

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

});

Array.extend({

	/*
	Property: rgbToHex
		see <String.rgbToHex>, but as an array method.
	*/

	rgbToHex: function(array){
		if (this.length < 3) return false;
		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('');
	},

	/*
	Property: hexToRgb
		same as <String.hexToRgb>, but as an array method.
	*/

	hexToRgb: function(array){
		if (this.length != 3) return false;
		var rgb = [];
		for (var i = 0; i < 3; i++){
			rgb.push(parseInt((this[i].length == 1) ? this[i] + this[i] : this[i], 16));
		}
		return array ? rgb : 'rgb(' + rgb.join(',') + ')';
	}

});


Function.extend({

	/*
	Property: create
		Main function to create closures.

	Returns:
		a function.

	Arguments:
		options - An Options object.

	Options:
		bind - The object that the "this" of the function will refer to. Default is the current function.
		event - If set to true, the function will act as an event listener and receive an event as first argument.
				If set to a class name, the function will receive a new instance of this class (with the event passed as argument's constructor) as first argument.
				Default is false.
		arguments - A single argument or array of arguments that will be passed to the function when called.
		
					If both the event and arguments options are set, the event is passed as first argument and the arguments array will follow.
					
					Default is no custom arguments, the function will receive the standard arguments when called.
					
		delay - Numeric value: if set, the returned function will delay the actual execution by this amount of milliseconds and return a timer handle when called.
				Default is no delay.
		periodical - Numeric value: if set, the returned function will periodically perform the actual execution with this specified interval and return a timer handle when called.
				Default is no periodical execution.
		attempt - If set to true, the returned function will try to execute and return either the results or false on error. Default is false.
	*/

	create: function(options){
		var fn = this;
		options = $merge({
			'bind': fn,
			'event': false,
			'arguments': null,
			'delay': false,
			'periodical': false,
			'attempt': false
		}, options);
		if ($chk(options.arguments) && $type(options.arguments) != 'array') options.arguments = [options.arguments];
		return function(event){
			var args;
			if (options.event){
				event = event || window.event;
				args = [(options.event === true) ? event : new options.event(event)];
				if (options.arguments) args.extend(options.arguments);
			}
			else args = options.arguments || arguments;
			var returns = function(){
				return fn.apply($pick(options.bind, fn), args);
			};
			if (options.delay) return setTimeout(returns, options.delay);
			if (options.periodical) return setInterval(returns, options.periodical);
			if (options.attempt) try {return returns();} catch(err){return false;};
			return returns();
		};
	},

	/*
	Property: pass
		Shortcut to create closures with arguments and bind.

	Returns:
		a function.

	Arguments:
		args - the arguments passed. must be an array if arguments > 1
		bind - optional, the object that the "this" of the function will refer to.

	Example:
		>myFunction.pass([arg1, arg2], myElement);
	*/

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

	/*
	Property: attempt
		Tries to execute the function, returns either the result of the function or false on error.

	Arguments:
		args - the arguments passed. must be an array if arguments > 1
		bind - optional, the object that the "this" of the function will refer to.

	Example:
		>myFunction.attempt([arg1, arg2], myElement);
	*/

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

	/*
	Property: bind
		method to easily create closures with "this" altered.

	Arguments:
		bind - optional, the object that the "this" of the function will refer to.
		args - optional, the arguments passed. must be an array if arguments > 1

	Returns:
		a function.

	Example:
		>function myFunction(){
		>	this.setStyle('color', 'red');
		>	// note that 'this' here refers to myFunction, not an element
		>	// we'll need to bind this function to the element we want to alter
		>};
		>var myBoundFunction = myFunction.bind(myElement);
		>myBoundFunction(); // this will make the element myElement red.
	*/

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

	/*
	Property: bindAsEventListener
		cross browser method to pass event firer

	Arguments:
		bind - optional, the object that the "this" of the function will refer to.
		args - optional, the arguments passed. must be an array if arguments > 1

	Returns:
		a function with the parameter bind as its "this" and as a pre-passed argument event or window.event, depending on the browser.

	Example:
		>function myFunction(event){
		>	alert(event.clientx) //returns the coordinates of the mouse..
		>};
		>myElement.onclick = myFunction.bindAsEventListener(myElement);
	*/

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

	/*
	Property: delay
		Delays the execution of a function by a specified duration.

	Arguments:
		delay - the duration to wait in milliseconds.
		bind - optional, the object that the "this" of the function will refer to.
		args - optional, the arguments passed. must be an array if arguments > 1

	Example:
		>myFunction.delay(50, myElement) //wait 50 milliseconds, then call myFunction and bind myElement to it
		>(function(){alert('one second later...')}).delay(1000); //wait a second and alert
	*/

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

	/*
	Property: periodical
		Executes a function in the specified intervals of time

	Arguments:
		interval - the duration of the intervals between executions.
		bind - optional, the object that the "this" of the function will refer to.
		args - optional, the arguments passed. must be an array if arguments > 1
	*/

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

});


Number.extend({

	/*
	Property: toInt
		Returns this number; useful because toInt must work on both Strings and Numbers.
	*/

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

	/*
	Property: toFloat
		Returns this number as a float; useful because toFloat must work on both Strings and Numbers.
	*/

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

	/*
	Property: limit
		Limits the number.

	Arguments:
		min - number, minimum value
		max - number, maximum value

	Returns:
		the number in the given limits.

	Example:
		>(12).limit(2, 6.5)  // returns 6.5
		>(-4).limit(2, 6.5)  // returns 2
		>(4.3).limit(2, 6.5) // returns 4.3
	*/

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

	/*
	Property: round
		Returns the number rounded to specified precision.

	Arguments:
		precision - integer, number of digits after the decimal point. Can also be negative or zero (default).

	Example:
		>12.45.round() // returns 12
		>12.45.round(1) // returns 12.5
		>12.45.round(-1) // returns 10

	Returns:
		The rounded number.
	*/

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

	/*
	Property: times
		Executes a passed in function the specified number of times

	Arguments:
		function - the function to be executed on each iteration of the loop

	Example:
		>(4).times(alert);
	*/

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

});


var Element = new Class({

	/*
	Property: initialize
		Creates a new element of the type passed in.

	Arguments:
		el - string; the tag name for the element you wish to create. you can also pass in an element reference, in which case it will be extended.
		props - object; the properties you want to add to your element.
		Accepts the same keys as <Element.setProperties>, but also allows events and styles

	Props:
		the key styles will be used as setStyles, the key events will be used as addEvents. any other key is used as setProperty.

	Example:
		(start code)
		new Element('a', {
			'styles': {
				'display': 'block',
				'border': '1px solid black'
			},
			'events': {
				'click': function(){
					//aaa
				},
				'mousedown': function(){
					//aaa
				}
			},
			'class': 'myClassSuperClass',
			'href': 'http://mad4milk.net'
		});

		(end)
	*/

	initialize: function(el, props){
		if ($type(el) == 'string'){
			if (window.ie && props && (props.name || props.type)){
				var name = (props.name) ? ' name="' + props.name + '"' : '';
				var type = (props.type) ? ' type="' + props.type + '"' : '';
				delete props.name;
				delete props.type;
				el = '<' + el + name + type + '>';
			}
			el = document.createElement(el);
		}
		el = $(el);
		return (!props || !el) ? el : el.set(props);
	}

});


var Elements = new Class({

	initialize: function(elements){
		return (elements) ? $extend(elements, this) : this;
	}

});

Elements.extend = function(props){
	for (var prop in props){
		this.prototype[prop] = props[prop];
		this[prop] = $native.generic(prop);
	}
};


function $(el){
	if (!el) return null;
	if (el.htmlElement) return Garbage.collect(el);
	if ([window, document].contains(el)) return el;
	var type = $type(el);
	if (type == 'string'){
		el = document.getElementById(el);
		type = (el) ? 'element' : false;
	}
	if (type != 'element') return null;
	if (el.htmlElement) return Garbage.collect(el);
	if (['object', 'embed'].contains(el.tagName.toLowerCase())) return el;
	$extend(el, Element.prototype);
	el.htmlElement = function(){};
	return Garbage.collect(el);
};


document.getElementsBySelector = document.getElementsByTagName;

function $$(){
	var elements = [];
	for (var i = 0, j = arguments.length; i < j; i++){
		var selector = arguments[i];
		switch($type(selector)){
			case 'element': elements.push(selector);
			case 'boolean': break;
			case false: break;
			case 'string': selector = document.getElementsBySelector(selector, true);
			default: elements.extend(selector);
		}
	}
	return $$.unique(elements);
};

$$.unique = function(array){
	var elements = [];
	for (var i = 0, l = array.length; i < l; i++){
		if (array[i].$included) continue;
		var element = $(array[i]);
		if (element && !element.$included){
			element.$included = true;
			elements.push(element);
		}
	}
	for (var n = 0, d = elements.length; n < d; n++) elements[n].$included = null;
	return new Elements(elements);
};

Elements.Multi = function(property){
	return function(){
		var args = arguments;
		var items = [];
		var elements = true;
		for (var i = 0, j = this.length, returns; i < j; i++){
			returns = this[i][property].apply(this[i], args);
			if ($type(returns) != 'element') elements = false;
			items.push(returns);
		};
		return (elements) ? $$.unique(items) : items;
	};
};

Element.extend = function(properties){
	for (var property in properties){
		HTMLElement.prototype[property] = properties[property];
		Element.prototype[property] = properties[property];
		Element[property] = $native.generic(property);
		var elementsProperty = (Array.prototype[property]) ? property + 'Elements' : property;
		Elements.prototype[elementsProperty] = Elements.Multi(property);
	}
};


Element.extend({

	/*
	Property: set
		you can set events, styles and properties with this shortcut. same as calling new Element.
	*/

	set: function(props){
		for (var prop in props){
			var val = props[prop];
			switch(prop){
				case 'styles': this.setStyles(val); break;
				case 'events': if (this.addEvents) this.addEvents(val); break;
				case 'properties': this.setProperties(val); break;
				default: this.setProperty(prop, val);
			}
		}
		return this;
	},

	inject: function(el, where){
		el = $(el);
		switch(where){
			case 'before': el.parentNode.insertBefore(this, el); break;
			case 'after':
				var next = el.getNext();
				if (!next) el.parentNode.appendChild(this);
				else el.parentNode.insertBefore(this, next);
				break;
			case 'top':
				var first = el.firstChild;
				if (first){
					el.insertBefore(this, first);
					break;
				}
			default: el.appendChild(this);
		}
		return this;
	},

	/*
	Property: injectBefore
		Inserts the Element before the passed element.

	Arguments:
		el - an element reference or the id of the element to be injected in.

	Example:
		>html:
		><div id="myElement"></div>
		><div id="mySecondElement"></div>
		>js:
		>$('mySecondElement').injectBefore('myElement');
		>resulting html:
		><div id="mySecondElement"></div>
		><div id="myElement"></div>
	*/

	injectBefore: function(el){
		return this.inject(el, 'before');
	},

	/*
	Property: injectAfter
		Same as <Element.injectBefore>, but inserts the element after.
	*/

	injectAfter: function(el){
		return this.inject(el, 'after');
	},

	/*
	Property: injectInside
		Same as <Element.injectBefore>, but inserts the element inside.
	*/

	injectInside: function(el){
		return this.inject(el, 'bottom');
	},

	/*
	Property: injectTop
		Same as <Element.injectInside>, but inserts the element inside, at the top.
	*/

	injectTop: function(el){
		return this.inject(el, 'top');
	},

	/*
	Property: adopt
		Inserts the passed elements inside the Element.

	Arguments:
		accepts elements references, element ids as string, selectors ($$('stuff')) / array of elements, array of ids as strings and collections.
	*/

	adopt: function(){
		var elements = [];
		$each(arguments, function(argument){
			elements = elements.concat(argument);
		});
		$$(elements).inject(this);
		return this;
	},

	/*
	Property: remove
		Removes the Element from the DOM.

	Example:
		>$('myElement').remove() //bye bye
	*/

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

	/*
	Property: clone
		Clones the Element and returns the cloned one.

	Arguments:
		contents - boolean, when true the Element is cloned with childNodes, default true

	Returns:
		the cloned element

	Example:
		>var clone = $('myElement').clone().injectAfter('myElement');
		>//clones the Element and append the clone after the Element.
	*/

	clone: function(contents){
		var el = $(this.cloneNode(contents !== false));
		if (!el.$events) return el;
		el.$events = {};
		for (var type in this.$events) el.$events[type] = {
			'keys': $A(this.$events[type].keys),
			'values': $A(this.$events[type].values)
		};
		return el.removeEvents();
	},

	/*
	Property: replaceWith
		Replaces the Element with an element passed.

	Arguments:
		el - a string representing the element to be injected in (myElementId, or div), or an element reference.
		If you pass div or another tag, the element will be created.

	Returns:
		the passed in element

	Example:
		>$('myOldElement').replaceWith($('myNewElement')); //$('myOldElement') is gone, and $('myNewElement') is in its place.
	*/

	replaceWith: function(el){
		el = $(el);
		this.parentNode.replaceChild(el, this);
		return el;
	},

	/*
	Property: appendText
		Appends text node to a DOM element.

	Arguments:
		text - the text to append.

	Example:
		><div id="myElement">hey</div>
		>$('myElement').appendText(' howdy'); //myElement innerHTML is now "hey howdy"
	*/

	appendText: function(text){
		this.appendChild(document.createTextNode(text));
		return this;
	},

	/*
	Property: hasClass
		Tests the Element to see if it has the passed in className.

	Returns:
		true - the Element has the class
		false - it doesn't

	Arguments:
		className - string; the class name to test.

	Example:
		><div id="myElement" class="testClass"></div>
		>$('myElement').hasClass('testClass'); //returns true
	*/

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

	/*
	Property: addClass
		Adds the passed in class to the Element, if the element doesnt already have it.

	Arguments:
		className - string; the class name to add

	Example:
		><div id="myElement" class="testClass"></div>
		>$('myElement').addClass('newClass'); //<div id="myElement" class="testClass newClass"></div>
	*/

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

	/*
	Property: removeClass
		Works like <Element.addClass>, but removes the class from the element.
	*/

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

	/*
	Property: toggleClass
		Adds or removes the passed in class name to the element, depending on if it's present or not.

	Arguments:
		className - the class to add or remove

	Example:
		><div id="myElement" class="myClass"></div>
		>$('myElement').toggleClass('myClass');
		><div id="myElement" class=""></div>
		>$('myElement').toggleClass('myClass');
		><div id="myElement" class="myClass"></div>
	*/

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

	/*
	Property: setStyle
		Sets a css property to the Element.

		Arguments:
			property - the property to set
			value - the value to which to set it; for numeric values that require "px" you can pass an integer

		Example:
			>$('myElement').setStyle('width', '300px'); //the width is now 300px
			>$('myElement').setStyle('width', 300); //the width is now 300px
	*/

	setStyle: function(property, value){
		switch(property){
			case 'opacity': return this.setOpacity(parseFloat(value));
			case 'float': property = (window.ie) ? 'styleFloat' : 'cssFloat';
		}
		property = property.camelCase();
		switch($type(value)){
			case 'number': if (!['zIndex', 'zoom'].contains(property)) value += 'px'; break;
			case 'array': value = 'rgb(' + value.join(',') + ')';
		}
		this.style[property] = value;
		return this;
	},

	/*
	Property: setStyles
		Applies a collection of styles to the Element.

	Arguments:
		source - an object or string containing all the styles to apply. When its a string it overrides old style.

	Examples:
		>$('myElement').setStyles({
		>	border: '1px solid #000',
		>	width: 300,
		>	height: 400
		>});

		OR

		>$('myElement').setStyles('border: 1px solid #000; width: 300px; height: 400px;');
	*/

	setStyles: function(source){
		switch($type(source)){
			case 'object': Element.setMany(this, 'setStyle', source); break;
			case 'string': this.style.cssText = source;
		}
		return this;
	},

	/*
	Property: setOpacity
		Sets the opacity of the Element, and sets also visibility == "hidden" if opacity == 0, and visibility = "visible" if opacity > 0.

	Arguments:
		opacity - float; Accepts values from 0 to 1.

	Example:
		>$('myElement').setOpacity(0.5) //make it 50% transparent
	*/

	setOpacity: function(opacity){
		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 (window.ie) this.style.filter = (opacity == 1) ? '' : "alpha(opacity=" + opacity * 100 + ")";
		this.style.opacity = this.$tmp.opacity = opacity;
		return this;
	},

	/*
	Property: getStyle
		Returns the style of the Element given the property passed in.

	Arguments:
		property - the css style property you want to retrieve

	Example:
		>$('myElement').getStyle('width'); //returns "400px"
		>//but you can also use
		>$('myElement').getStyle('width').toInt(); //returns 400

	Returns:
		the style as a string
	*/

	getStyle: function(property){
		property = property.camelCase();
		var result = this.style[property];
		if (!$chk(result)){
			if (property == 'opacity') return this.$tmp.opacity;
			result = [];
			for (var style in Element.Styles){
				if (property == style){
					Element.Styles[style].each(function(s){
						var style = this.getStyle(s);
						result.push(parseInt(style) ? style : '0px');
					}, this);
					if (property == 'border'){
						var every = result.every(function(bit){
							return (bit == result[0]);
						});
						return (every) ? result[0] : false;
					}
					return result.join(' ');
				}
			}
			if (property.contains('border')){
				if (Element.Styles.border.contains(property)){
					return ['Width', 'Style', 'Color'].map(function(p){
						return this.getStyle(property + p);
					}, this).join(' ');
				} else if (Element.borderShort.contains(property)){
					return ['Top', 'Right', 'Bottom', 'Left'].map(function(p){
						return this.getStyle('border' + p + property.replace('border', ''));
					}, this).join(' ');
				}
			}
			if (document.defaultView) result = document.defaultView.getComputedStyle(this, null).getPropertyValue(property.hyphenate());
			else if (this.currentStyle) result = this.currentStyle[property];
		}
		if (window.ie) result = Element.fixStyle(property, result, this);
		if (result && property.test(/color/i) && result.contains('rgb')){
			return result.split('rgb').splice(1,4).map(function(color){
				return color.rgbToHex();
			}).join(' ');
		}
		return result;
	},

	/*
	Property: getStyles
		Returns an object of styles of the Element for each argument passed in.
		Arguments:
		properties - strings; any number of style properties
	Example:
		>$('myElement').getStyles('width','height','padding');
		>//returns an object like:
		>{width: "10px", height: "10px", padding: "10px 0px 10px 0px"}
	*/

	getStyles: function(){
		return Element.getMany(this, 'getStyle', arguments);
	},

	walk: function(brother, start){
		brother += 'Sibling';
		var el = (start) ? this[start] : this[brother];
		while (el && $type(el) != 'element') el = el[brother];
		return $(el);
	},

	/*
	Property: getPrevious
		Returns the previousSibling of the Element, excluding text nodes.

	Example:
		>$('myElement').getPrevious(); //get the previous DOM element from myElement

	Returns:
		the sibling element or undefined if none found.
	*/

	getPrevious: function(){
		return this.walk('previous');
	},

	/*
	Property: getNext
		Works as Element.getPrevious, but tries to find the nextSibling.
	*/

	getNext: function(){
		return this.walk('next');
	},

	/*
	Property: getFirst
		Works as <Element.getPrevious>, but tries to find the firstChild.
	*/

	getFirst: function(){
		return this.walk('next', 'firstChild');
	},

	/*
	Property: getLast
		Works as <Element.getPrevious>, but tries to find the lastChild.
	*/

	getLast: function(){
		return this.walk('previous', 'lastChild');
	},

	/*
	Property: getParent
		returns the $(element.parentNode)
	*/

	getParent: function(){
		return $(this.parentNode);
	},

	/*
	Property: getChildren
		returns all the $(element.childNodes), excluding text nodes. Returns as <Elements>.
	*/

	getChildren: function(){
		return $$(this.childNodes);
	},

	/*
	Property: hasChild
		returns true if the passed in element is a child of the $(element).
	*/

	hasChild: function(el){
		return !!$A(this.getElementsByTagName('*')).contains(el);
	},

	/*
	Property: getProperty
		Gets the an attribute of the Element.

	Arguments:
		property - string; the attribute to retrieve

	Example:
		>$('myImage').getProperty('src') // returns whatever.gif

	Returns:
		the value, or an empty string
	*/

	getProperty: function(property){
		var index = Element.Properties[property];
		if (index) return this[index];
		var flag = Element.PropertiesIFlag[property] || 0;
		if (!window.ie || flag) return this.getAttribute(property, flag);
		var node = this.attributes[property];
		return (node) ? node.nodeValue : null;
	},

	/*
	Property: removeProperty
		Removes an attribute from the Element

	Arguments:
		property - string; the attribute to remove
	*/

	removeProperty: function(property){
		var index = Element.Properties[property];
		if (index) this[index] = '';
		else this.removeAttribute(property);
		return this;
	},

	/*
	Property: getProperties
		same as <Element.getStyles>, but for properties
	*/

	getProperties: function(){
		return Element.getMany(this, 'getProperty', arguments);
	},

	/*
	Property: setProperty
		Sets an attribute for the Element.

	Arguments:
		property - string; the property to assign the value passed in
		value - the value to assign to the property passed in

	Example:
		>$('myImage').setProperty('src', 'whatever.gif'); //myImage now points to whatever.gif for its source
	*/

	setProperty: function(property, value){
		var index = Element.Properties[property];
		if (index) this[index] = value;
		else this.setAttribute(property, value);
		return this;
	},

	/*
	Property: setProperties
		Sets numerous attributes for the Element.

	Arguments:
		source - an object with key/value pairs.

	Example:
		(start code)
		$('myElement').setProperties({
			src: 'whatever.gif',
			alt: 'whatever dude'
		});
		<img src="whatever.gif" alt="whatever dude">
		(end)
	*/

	setProperties: function(source){
		return Element.setMany(this, 'setProperty', source);
	},

	/*
	Property: setHTML
		Sets the innerHTML of the Element.

	Arguments:
		html - string; the new innerHTML for the element.

	Example:
		>$('myElement').setHTML(newHTML) //the innerHTML of myElement is now = newHTML
	*/

	setHTML: function(){
		this.innerHTML = $A(arguments).join('');
		return this;
	},

	/*
	Property: setText
		Sets the inner text of the Element.

	Arguments:
		text - string; the new text content for the element.

	Example:
		>$('myElement').setText('some text') //the text of myElement is now = 'some text'
	*/

	setText: function(text){
		var tag = this.getTag();
		if (['style', 'script'].contains(tag)){
			if (window.ie){
				if (tag == 'style') this.styleSheet.cssText = text;
				else if (tag ==  'script') this.setProperty('text', text);
				return this;
			} else {
				this.removeChild(this.firstChild);
				return this.appendText(text);
			}
		}
		this[$defined(this.innerText) ? 'innerText' : 'textContent'] = text;
		return this;
	},

	/*
	Property: getText
		Gets the inner text of the Element.
	*/

	getText: function(){
		var tag = this.getTag();
		if (['style', 'script'].contains(tag)){
			if (window.ie){
				if (tag == 'style') return this.styleSheet.cssText;
				else if (tag ==  'script') return this.getProperty('text');
			} else {
				return this.innerHTML;
			}
		}
		return ($pick(this.innerText, this.textContent));
	},

	/*
	Property: getTag
		Returns the tagName of the element in lower case.

	Example:
		>$('myImage').getTag() // returns 'img'

	Returns:
		The tag name in lower case
	*/

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

	/*
	Property: empty
		Empties an element of all its children.

	Example:
		>$('myDiv').empty() // empties the Div and returns it

	Returns:
		The element.
	*/

	empty: function(){
		Garbage.trash(this.getElementsByTagName('*'));
		return this.setHTML('');
	}

});

Element.fixStyle = function(property, result, element){
	if ($chk(parseInt(result))) return result;
	if (['height', 'width'].contains(property)){
		var values = (property == 'width') ? ['left', 'right'] : ['top', 'bottom'];
		var size = 0;
		values.each(function(value){
			size += element.getStyle('border-' + value + '-width').toInt() + element.getStyle('padding-' + value).toInt();
		});
		return element['offset' + property.capitalize()] - size + 'px';
	} else if (property.test(/border(.+)Width|margin|padding/)){
		return '0px';
	}
	return result;
};

Element.Styles = {'border': [], 'padding': [], 'margin': []};
['Top', 'Right', 'Bottom', 'Left'].each(function(direction){
	for (var style in Element.Styles) Element.Styles[style].push(style + direction);
});

Element.borderShort = ['borderWidth', 'borderStyle', 'borderColor'];

Element.getMany = function(el, method, keys){
	var result = {};
	$each(keys, function(key){
		result[key] = el[method](key);
	});
	return result;
};

Element.setMany = function(el, method, pairs){
	for (var key in pairs) el[method](key, pairs[key]);
	return el;
};

Element.Properties = new Abstract({
	'class': 'className', 'for': 'htmlFor', 'colspan': 'colSpan', 'rowspan': 'rowSpan',
	'accesskey': 'accessKey', 'tabindex': 'tabIndex', 'maxlength': 'maxLength',
	'readonly': 'readOnly', 'frameborder': 'frameBorder', 'value': 'value',
	'disabled': 'disabled', 'checked': 'checked', 'multiple': 'multiple', 'selected': 'selected'
});
Element.PropertiesIFlag = {
	'href': 2, 'src': 2
};

Element.Methods = {
	Listeners: {
		addListener: function(type, fn){
			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;
		}
	}
};

window.extend(Element.Methods.Listeners);
document.extend(Element.Methods.Listeners);
Element.extend(Element.Methods.Listeners);

var Garbage = {

	elements: [],

	collect: function(el){
		if (!el.$tmp){
			Garbage.elements.push(el);
			el.$tmp = {'opacity': 1};
		}
		return el;
	},

	trash: function(elements){
		for (var i = 0, j = elements.length, el; i < j; i++){
			if (!(el = elements[i]) || !el.$tmp) continue;
			if (el.$events) el.fireEvent('trash').removeEvents();
			for (var p in el.$tmp) el.$tmp[p] = null;
			for (var d in Element.prototype) el[d] = null;
			Garbage.elements[Garbage.elements.indexOf(el)] = null;
			el.htmlElement = el.$tmp = el = null;
		}
		Garbage.elements.remove(null);
	},

	empty: function(){
		Garbage.collect(window);
		Garbage.collect(document);
		Garbage.trash(Garbage.elements);
	}

};

window.addListener('beforeunload', function(){
	window.addListener('unload', Garbage.empty);
	if (window.ie) window.addListener('unload', CollectGarbage);
});


var Event = new Class({

	initialize: function(event){
		if (event && event.$extended) return event;
		this.$extended = true;
		event = event || window.event;
		this.event = event;
		this.type = event.type;
		this.target = event.target || event.srcElement;
		if (this.target.nodeType == 3) this.target = this.target.parentNode;
		this.shift = event.shiftKey;
		this.control = event.ctrlKey;
		this.alt = event.altKey;
		this.meta = event.metaKey;
		if (['DOMMouseScroll', 'mousewheel'].contains(this.type)){
			this.wheel = (event.wheelDelta) ? event.wheelDelta / 120 : -(event.detail || 0) / 3;
		} else if (this.type.contains('key')){
			this.code = event.which || event.keyCode;
			for (var name in Event.keys){
				if (Event.keys[name] == this.code){
					this.key = name;
					break;
				}
			}
			if (this.type == 'keydown'){
				var fKey = this.code - 111;
				if (fKey > 0 && fKey < 13) this.key = 'f' + fKey;
			}
			this.key = this.key || String.fromCharCode(this.code).toLowerCase();
		} else if (this.type.test(/(click|mouse|menu)/)){
			this.page = {
				'x': event.pageX || event.clientX + document.documentElement.scrollLeft,
				'y': event.pageY || event.clientY + document.documentElement.scrollTop
			};
			this.client = {
				'x': event.pageX ? event.pageX - window.pageXOffset : event.clientX,
				'y': event.pageY ? event.pageY - window.pageYOffset : event.clientY
			};
			this.rightClick = (event.which == 3) || (event.button == 2);
			switch(this.type){
				case 'mouseover': this.relatedTarget = event.relatedTarget || event.fromElement; break;
				case 'mouseout': this.relatedTarget = event.relatedTarget || event.toElement;
			}
			this.fixRelatedTarget();
		}
		return this;
	},

	/*
	Property: stop
		cross browser method to stop an event
	*/

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

	/*
	Property: stopPropagation
		cross browser method to stop the propagation of an event
	*/

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

	/*
	Property: preventDefault
		cross browser method to prevent the default action of the event
	*/

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

});

Event.fix = {

	relatedTarget: function(){
		if (this.relatedTarget && this.relatedTarget.nodeType == 3) this.relatedTarget = this.relatedTarget.parentNode;
	},

	relatedTargetGecko: function(){
		try {Event.fix.relatedTarget.call(this);} catch(e){this.relatedTarget = this.target;}
	}

};

Event.prototype.fixRelatedTarget = (window.gecko) ? Event.fix.relatedTargetGecko : Event.fix.relatedTarget;


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


Element.Methods.Events = {

	/*
	Property: addEvent
		Attaches an event listener to a DOM element.

	Arguments:
		type - the event to monitor ('click', 'load', etc) without the prefix 'on'.
		fn - the function to execute

	Example:
		>$('myElement').addEvent('click', function(){alert('clicked!')});
	*/

	addEvent: function(type, fn){
		this.$events = this.$events || {};
		this.$events[type] = this.$events[type] || {'keys': [], 'values': []};
		if (this.$events[type].keys.contains(fn)) return this;
		this.$events[type].keys.push(fn);
		var realType = type;
		var custom = Element.Events[type];
		if (custom){
			if (custom.add) custom.add.call(this, fn);
			if (custom.map) fn = custom.map;
			if (custom.type) realType = custom.type;
		}
		if (!this.addEventListener) fn = fn.create({'bind': this, 'event': true});
		this.$events[type].values.push(fn);
		return (Element.NativeEvents.contains(realType)) ? this.addListener(realType, fn) : this;
	},

	/*
	Property: removeEvent
		Works as Element.addEvent, but instead removes the previously added event listener.
	*/

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

	/*
	Property: addEvents
		As <addEvent>, but accepts an object and add multiple events at once.
	*/

	addEvents: function(source){
		return Element.setMany(this, 'addEvent', source);
	},

	/*
	Property: removeEvents
		removes all events of a certain type from an element. if no argument is passed in, removes all events.

	Arguments:
		type - string; the event name (e.g. 'click')
	*/

	removeEvents: function(type){
		if (!this.$events) return this;
		if (!type){
			for (var evType in this.$events) this.removeEvents(evType);
			this.$events = null;
		} else if (this.$events[type]){
			this.$events[type].keys.each(function(fn){
				this.removeEvent(type, fn);
			}, this);
			this.$events[type] = null;
		}
		return this;
	},

	/*
	Property: fireEvent
		executes all events of the specified type present in the element.

	Arguments:
		type - string; the event name (e.g. 'click')
		args - array or single object; arguments to pass to the function; if more than one argument, must be an array
		delay - (integer) delay (in ms) to wait to execute the event
	*/

	fireEvent: function(type, args, delay){
		if (this.$events && this.$events[type]){
			this.$events[type].keys.each(function(fn){
				fn.create({'bind': this, 'delay': delay, 'arguments': args})();
			}, this);
		}
		return this;
	},

	/*
	Property: cloneEvents
		Clones all events from an element to this element.

	Arguments:
		from - element, copy all events from this element
		type - optional, copies only events of this type
	*/

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

};

window.extend(Element.Methods.Events);
document.extend(Element.Methods.Events);
Element.extend(Element.Methods.Events);


Element.Events = new Abstract({

	/*
	Event: mouseenter
		In addition to the standard javascript events (load, mouseover, mouseout, click, etc.) <Event.js> contains two custom events
		this event fires when the mouse enters the area of the dom element; will not be fired again if the mouse crosses over children of the element (unlike mouseover)


	Example:
		>$(myElement).addEvent('mouseenter', myFunction);
	*/

	'mouseenter': {
		type: 'mouseover',
		map: function(event){
			event = new Event(event);
			if (event.relatedTarget != this && !this.hasChild(event.relatedTarget)) this.fireEvent('mouseenter', event);
		}
	},

	/*
	Event: mouseleave
		this event fires when the mouse exits the area of the dom element; will not be fired again if the mouse crosses over children of the element (unlike mouseout)


	Example:
		>$(myElement).addEvent('mouseleave', myFunction);
	*/

	'mouseleave': {
		type: 'mouseout',
		map: function(event){
			event = new Event(event);
			if (event.relatedTarget != this && !this.hasChild(event.relatedTarget)) this.fireEvent('mouseleave', event);
		}
	},

	'mousewheel': {
		type: (window.gecko) ? 'DOMMouseScroll' : 'mousewheel'
	}

});

Element.NativeEvents = [
	'click', 'dblclick', 'mouseup', 'mousedown', //mouse buttons
	'mousewheel', 'DOMMouseScroll', //mouse wheel
	'mouseover', 'mouseout', 'mousemove', //mouse movement
	'keydown', 'keypress', 'keyup', //keys
	'load', 'unload', 'beforeunload', 'resize', 'move', //window
	'focus', 'blur', 'change', 'submit', 'reset', 'select', //forms elements
	'error', 'abort', 'contextmenu', 'scroll' //misc
];


Function.extend({

	/*
	Property: bindWithEvent
		automatically passes MooTools Event Class.

	Arguments:
		bind - optional, the object that the "this" of the function will refer to.
		args - optional, an argument to pass to the function; if more than one argument, it must be an array of arguments.

	Returns:
		a function with the parameter bind as its "this" and as a pre-passed argument event or window.event, depending on the browser.

	Example:
		>function myFunction(event){
		>	alert(event.client.x) //returns the coordinates of the mouse..
		>};
		>myElement.addEvent('click', myFunction.bindWithEvent(myElement));
	*/

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

});


Elements.extend({
	
	/*
	Property: filterByTag
		Filters the collection by a specified tag name.
		Returns a new Elements collection, while the original remains untouched.
	*/
	
	filterByTag: function(tag){
		return new Elements(this.filter(function(el){
			return (Element.getTag(el) == tag);
		}));
	},
	
	/*
	Property: filterByClass
		Filters the collection by a specified class name.
		Returns a new Elements collection, while the original remains untouched.
	*/
	
	filterByClass: function(className, nocash){
		var elements = this.filter(function(el){
			return (el.className && el.className.contains(className, ' '));
		});
		return (nocash) ? elements : new Elements(elements);
	},
	
	/*
	Property: filterById
		Filters the collection by a specified ID.
		Returns a new Elements collection, while the original remains untouched.
	*/
	
	filterById: function(id, nocash){
		var elements = this.filter(function(el){
			return (el.id == id);
		});
		return (nocash) ? elements : new Elements(elements);
	},
	
	/*
	Property: filterByAttribute
		Filters the collection by a specified attribute.
		Returns a new Elements collection, while the original remains untouched.
		
	Arguments:
		name - the attribute name.
		operator - optional, the attribute operator.
		value - optional, the attribute value, only valid if the operator is specified.
	*/
	
	filterByAttribute: function(name, operator, value, nocash){
		var elements = this.filter(function(el){
			var current = Element.getProperty(el, name);
			if (!current) return false;
			if (!operator) return true;
			switch(operator){
				case '=': return (current == value);
				case '*=': return (current.contains(value));
				case '^=': return (current.substr(0, value.length) == value);
				case '$=': return (current.substr(current.length - value.length) == value);
				case '!=': return (current != value);
				case '~=': return current.contains(value, ' ');
			}
			return false;
		});
		return (nocash) ? elements : new Elements(elements);
	}

});


function $E(selector, filter){
	return ($(filter) || document).getElement(selector);
};



function $ES(selector, filter){
	return ($(filter) || document).getElementsBySelector(selector);
};

$$.shared = {

	'regexp': /^(\w*|\*)(?:#([\w-]+)|\.([\w-]+))?(?:\[(\w+)(?:([!*^$]?=)["']?([^"'\]]*)["']?)?])?$/,
	
	'xpath': {

		getParam: function(items, context, param, i){
			var temp = [context.namespaceURI ? 'xhtml:' : '', param[1]];
			if (param[2]) temp.push('[@id="', param[2], '"]');
			if (param[3]) temp.push('[contains(concat(" ", @class, " "), " ', param[3], ' ")]');
			if (param[4]){
				if (param[5] && param[6]){
					switch(param[5]){
						case '*=': temp.push('[contains(@', param[4], ', "', param[6], '")]'); break;
						case '^=': temp.push('[starts-with(@', param[4], ', "', param[6], '")]'); break;
						case '$=': temp.push('[substring(@', param[4], ', string-length(@', param[4], ') - ', param[6].length, ' + 1) = "', param[6], '"]'); break;
						case '=': temp.push('[@', param[4], '="', param[6], '"]'); break;
						case '!=': temp.push('[@', param[4], '!="', param[6], '"]');
					}
				} else {
					temp.push('[@', param[4], ']');
				}
			}
			items.push(temp.join(''));
			return items;
		},
		
		getItems: function(items, context, nocash){
			var elements = [];
			var xpath = document.evaluate('.//' + items.join('//'), context, $$.shared.resolver, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
			for (var i = 0, j = xpath.snapshotLength; i < j; i++) elements.push(xpath.snapshotItem(i));
			return (nocash) ? elements : new Elements(elements.map($));
		}

	},
	
	'normal': {
		
		getParam: function(items, context, param, i){
			if (i == 0){
				if (param[2]){
					var el = context.getElementById(param[2]);
					if (!el || ((param[1] != '*') && (Element.getTag(el) != param[1]))) return false;
					items = [el];
				} else {
					items = $A(context.getElementsByTagName(param[1]));
				}
			} else {
				items = $$.shared.getElementsByTagName(items, param[1]);
				if (param[2]) items = Elements.filterById(items, param[2], true);
			}
			if (param[3]) items = Elements.filterByClass(items, param[3], true);
			if (param[4]) items = Elements.filterByAttribute(items, param[4], param[5], param[6], true);
			return items;
		},

		getItems: function(items, context, nocash){
			return (nocash) ? items : $$.unique(items);
		}

	},

	resolver: function(prefix){
		return (prefix == 'xhtml') ? 'http://www.w3.org/1999/xhtml' : false;
	},

	getElementsByTagName: function(context, tagName){
		var found = [];
		for (var i = 0, j = context.length; i < j; i++) found.extend(context[i].getElementsByTagName(tagName));
		return found;
	}

};

$$.shared.method = (window.xpath) ? 'xpath' : 'normal';


Element.Methods.Dom = {

	/*
	Property: getElements
		Gets all the elements within an element that match the given (single) selector.
		Returns as <Elements>.

	Arguments:
		selector - string; the css selector to match

	Examples:
		>$('myElement').getElements('a'); // get all anchors within myElement
		>$('myElement').getElements('input[name=dialog]') //get all input tags with name 'dialog'
		>$('myElement').getElements('input[name$=log]') //get all input tags with names ending with 'log'

	Notes:
		Supports these operators in attribute selectors:

		- = : is equal to
		- ^= : starts-with
		- $= : ends-with
		- != : is not equal to

		Xpath is used automatically for compliant browsers.
	*/

	getElements: function(selector, nocash){
		var items = [];
		selector = selector.trim().split(' ');
		for (var i = 0, j = selector.length; i < j; i++){
			var sel = selector[i];
			var param = sel.match($$.shared.regexp);
			if (!param) break;
			param[1] = param[1] || '*';
			var temp = $$.shared[$$.shared.method].getParam(items, this, param, i);
			if (!temp) break;
			items = temp;
		}
		return $$.shared[$$.shared.method].getItems(items, this, nocash);
	},

	/*
	Property: getElement
		Same as <Element.getElements>, but returns only the first. Alternate syntax for <$E>, where filter is the Element.
		Returns as <Element>.

	Arguments:
		selector - string; css selector
	*/

	getElement: function(selector){
		return $(this.getElements(selector, true)[0] || false);
	},

	/*
	Property: getElementsBySelector
		Same as <Element.getElements>, but allows for comma separated selectors, as in css. Alternate syntax for <$$>, where filter is the Element.
		Returns as <Elements>.

	Arguments:
		selector - string; css selector
	*/

	getElementsBySelector: function(selector, nocash){
		var elements = [];
		selector = selector.split(',');
		for (var i = 0, j = selector.length; i < j; i++) elements = elements.concat(this.getElements(selector[i], true));
		return (nocash) ? elements : $$.unique(elements);
	}

};

Element.extend({

	/*
	Property: getElementById
		Targets an element with the specified id found inside the Element. Does not overwrite document.getElementById.

	Arguments:
		id - string; the id of the element to find.
	*/

	getElementById: function(id){
		var el = document.getElementById(id);
		if (!el) return false;
		for (var parent = el.parentNode; parent != this; parent = parent.parentNode){
			if (!parent) return false;
		}
		return el;
	}/*compatibility*/,
	
	getElementsByClassName: function(className){ 
		return this.getElements('.' + className); 
	}
	
	/*end compatibility*/

});

document.extend(Element.Methods.Dom);
Element.extend(Element.Methods.Dom);


Element.extend({

	/*
	Property: getValue
		Returns the value of the Element, if its tag is textarea, select or input. getValue called on a multiple select will return an array.
	*/

	getValue: function(){
		switch(this.getTag()){
			case 'select':
				var values = [];
				$each(this.options, function(option){
					if (option.selected) values.push($pick(option.value, option.text));
				});
				return (this.multiple) ? values : values[0];
			case 'input': if (!(this.checked && ['checkbox', 'radio'].contains(this.type)) && !['hidden', 'text', 'password'].contains(this.type)) break;
			case 'textarea': return this.value;
		}
		return false;
	},

	getFormElements: function(){
		return $$(this.getElementsByTagName('input'), this.getElementsByTagName('select'), this.getElementsByTagName('textarea'));
	},

	/*
	Property: toQueryString
		Reads the children inputs of the Element and generates a query string, based on their values. Used internally in <Ajax>

	Example:
		(start code)
		<form id="myForm" action="submit.php">
		<input name="email" value="bob@bob.com">
		<input name="zipCode" value="90210">
		</form>

		<script>
		 $('myForm').toQueryString()
		</script>
		(end)

		Returns:
			email=bob@bob.com&zipCode=90210
	*/

	toQueryString: function(){
		var queryString = [];
		this.getFormElements().each(function(el){
			var name = el.name;
			var value = el.getValue();
			if (value === false || !name || el.disabled) return;
			var qs = function(val){
				queryString.push(name + '=' + encodeURIComponent(val));
			};
			if ($type(value) == 'array') value.each(qs);
			else qs(value);
		});
		return queryString.join('&');
	}

});


Element.extend({

	/*
	Property: scrollTo
		Scrolls the element to the specified coordinated (if the element has an overflow)

	Arguments:
		x - the x coordinate
		y - the y coordinate

	Example:
		>$('myElement').scrollTo(0, 100)
	*/

	scrollTo: function(x, y){
		this.scrollLeft = x;
		this.scrollTop = y;
	},

	/*
	Property: getSize
		Return an Object representing the size/scroll values of the element.

	Example:
		(start code)
		$('myElement').getSize();
		(end)

	Returns:
		(start code)
		{
			'scroll': {'x': 100, 'y': 100},
			'size': {'x': 200, 'y': 400},
			'scrollSize': {'x': 300, 'y': 500}
		}
		(end)
	*/

	getSize: function(){
		return {
			'scroll': {'x': this.scrollLeft, 'y': this.scrollTop},
			'size': {'x': this.offsetWidth, 'y': this.offsetHeight},
			'scrollSize': {'x': this.scrollWidth, 'y': this.scrollHeight}
		};
	},

	/*
	Property: getPosition
		Returns the real offsets of the element.

	Arguments:
		overflown - optional, an array of nested scrolling containers for scroll offset calculation, use this if your element is inside any element containing scrollbars

	Example:
		>$('element').getPosition();

	Returns:
		>{x: 100, y:500};
	*/

	getPosition: function(overflown){
		overflown = overflown || [];
		var el = this, left = 0, top = 0;
		do {
			left += el.offsetLeft || 0;
			top += el.offsetTop || 0;
			el = el.offsetParent;
		} while (el);
		overflown.each(function(element){
			left -= element.scrollLeft || 0;
			top -= element.scrollTop || 0;
		});
		return {'x': left, 'y': top};
	},

	/*
	Property: getTop
		Returns the distance from the top of the window to the Element.

	Arguments:
		overflown - optional, an array of nested scrolling containers, see Element::getPosition
	*/

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

	/*
	Property: getLeft
		Returns the distance from the left of the window to the Element.

	Arguments:
		overflown - optional, an array of nested scrolling containers, see Element::getPosition
	*/

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

	/*
	Property: getCoordinates
		Returns an object with width, height, left, right, top, and bottom, representing the values of the Element

	Arguments:
		overflown - optional, an array of nested scrolling containers, see Element::getPosition

	Example:
		(start code)
		var myValues = $('myElement').getCoordinates();
		(end)

	Returns:
		(start code)
		{
			width: 200,
			height: 300,
			left: 100,
			top: 50,
			right: 300,
			bottom: 350
		}
		(end)
	*/

	getCoordinates: function(overflown){
		var position = this.getPosition(overflown);
		var obj = {
			'width': this.offsetWidth,
			'height': this.offsetHeight,
			'left': position.x,
			'top': position.y
		};
		obj.right = obj.left + obj.width;
		obj.bottom = obj.top + obj.height;
		return obj;
	}

});


Element.Events.domready = {

	add: function(fn){
		if (window.loaded){
			fn.call(this);
			return;
		}
		var domReady = function(){
			if (window.loaded) return;
			window.loaded = true;
			window.timer = $clear(window.timer);
			this.fireEvent('domready');
		}.bind(this);
		if (document.readyState && window.webkit){
			window.timer = function(){
				if (['loaded','complete'].contains(document.readyState)) domReady();
			}.periodical(50);
		} else if (document.readyState && window.ie){
			if (!$('ie_ready')){
				var src = (window.location.protocol == 'https:') ? '://0' : 'javascript:void(0)';
				document.write('<script id="ie_ready" defer src="' + src + '"><\/script>');
				$('ie_ready').onreadystatechange = function(){
					if (this.readyState == 'complete') domReady();
				};
			}
		} else {
			window.addListener("load", domReady);
			document.addListener("DOMContentLoaded", domReady);
		}
	}

};


window.onDomReady = function(fn){ 
	return this.addEvent('domready', fn); 
};


window.extend({

	/*
	Property: getWidth
		Returns an integer representing the width of the browser window (without the scrollbar).
	*/

	getWidth: function(){
		if (this.webkit419) return this.innerWidth;
		if (this.opera) return document.body.clientWidth;
		return document.documentElement.clientWidth;
	},

	/*
	Property: getHeight
		Returns an integer representing the height of the browser window (without the scrollbar).
	*/

	getHeight: function(){
		if (this.webkit419) return this.innerHeight;
		if (this.opera) return document.body.clientHeight;
		return document.documentElement.clientHeight;
	},

	/*
	Property: getScrollWidth
		Returns an integer representing the scrollWidth of the window.
		This value is equal to or bigger than <getWidth>.

	See Also:
		<http://developer.mozilla.org/en/docs/DOM:element.scrollWidth>
	*/

	getScrollWidth: function(){
		if (this.ie) return Math.max(document.documentElement.offsetWidth, document.documentElement.scrollWidth);
		if (this.webkit) return document.body.scrollWidth;
		return document.documentElement.scrollWidth;
	},

	/*
	Property: getScrollHeight
		Returns an integer representing the scrollHeight of the window.
		This value is equal to or bigger than <getHeight>.

	See Also:
		<http://developer.mozilla.org/en/docs/DOM:element.scrollHeight>
	*/

	getScrollHeight: function(){
		if (this.ie) return Math.max(document.documentElement.offsetHeight, document.documentElement.scrollHeight);
		if (this.webkit) return document.body.scrollHeight;
		return document.documentElement.scrollHeight;
	},

	/*
	Property: getScrollLeft
		Returns an integer representing the scrollLeft of the window (the number of pixels the window has scrolled from the left).

	See Also:
		<http://developer.mozilla.org/en/docs/DOM:element.scrollLeft>
	*/

	getScrollLeft: function(){
		return this.pageXOffset || document.documentElement.scrollLeft;
	},

	/*
	Property: getScrollTop
		Returns an integer representing the scrollTop of the window (the number of pixels the window has scrolled from the top).

	See Also:
		<http://developer.mozilla.org/en/docs/DOM:element.scrollTop>
	*/

	getScrollTop: function(){
		return this.pageYOffset || document.documentElement.scrollTop;
	},

	/*
	Property: getSize
		Same as <Element.getSize>
	*/

	getSize: function(){
		return {
			'size': {'x': this.getWidth(), 'y': this.getHeight()},
			'scrollSize': {'x': this.getScrollWidth(), 'y': this.getScrollHeight()},
			'scroll': {'x': this.getScrollLeft(), 'y': this.getScrollTop()}
		};
	},

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

});

var Fx = {};

Fx.Base = new Class({

	options: {
		onStart: Class.empty,
		onComplete: Class.empty,
		onCancel: Class.empty,
		transition: function(p){
			return -(Math.cos(Math.PI * p) - 1) / 2;
		},
		duration: 500,
		unit: 'px',
		wait: true,
		fps: 50
	},

	initialize: function(options){
		this.element = this.element || null;
		this.setOptions(options);
		if (this.options.initialize) this.options.initialize.call(this);
	},

	step: function(){
		var time = $time();
		if (time < this.time + this.options.duration){
			this.delta = this.options.transition((time - this.time) / this.options.duration);
			this.setNow();
			this.increase();
		} else {
			this.stop(true);
			this.set(this.to);
			this.fireEvent('onComplete', this.element, 10);
			this.callChain();
		}
	},


	set: function(to){
		this.now = to;
		this.increase();
		return this;
	},

	setNow: function(){
		this.now = this.compute(this.from, this.to);
	},

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


	start: function(from, to){
		if (!this.options.wait) this.stop();
		else if (this.timer) return this;
		this.from = from;
		this.to = to;
		this.change = this.to - this.from;
		this.time = $time();
		this.timer = this.step.periodical(Math.round(1000 / this.options.fps), this);
		this.fireEvent('onStart', this.element);
		return this;
	},


	stop: function(end){
		if (!this.timer) return this;
		this.timer = $clear(this.timer);
		if (!end) this.fireEvent('onCancel', this.element);
		return this;
	},
	
	custom: function(from, to){
		return this.start(from, to);
	},

	clearTimer: function(end){
		return this.stop(end);
	}

});

Fx.Base.implement(new Chain, new Events, new Options);

Fx.CSS = {

	select: function(property, to){
		if (property.test(/color/i)) return this.Color;
		var type = $type(to);
		if ((type == 'array') || (type == 'string' && to.contains(' '))) return this.Multi;
		return this.Single;
	},

	parse: function(el, property, fromTo){
		if (!fromTo.push) fromTo = [fromTo];
		var from = fromTo[0], to = fromTo[1];
		if (!$chk(to)){
			to = from;
			from = el.getStyle(property);
		}
		var css = this.select(property, to);
		return {'from': css.parse(from), 'to': css.parse(to), 'css': css};
	}

};

Fx.CSS.Single = {

	parse: function(value){
		return parseFloat(value);
	},

	getNow: function(from, to, fx){
		return fx.compute(from, to);
	},

	getValue: function(value, unit, property){
		if (unit == 'px' && property != 'opacity') value = Math.round(value);
		return value + unit;
	}

};

Fx.CSS.Multi = {

	parse: function(value){
		return value.push ? value : value.split(' ').map(function(v){
			return parseFloat(v);
		});
	},

	getNow: function(from, to, fx){
		var now = [];
		for (var i = 0; i < from.length; i++) now[i] = fx.compute(from[i], to[i]);
		return now;
	},

	getValue: function(value, unit, property){
		if (unit == 'px' && property != 'opacity') value = value.map(Math.round);
		return value.join(unit + ' ') + unit;
	}

};

Fx.CSS.Color = {

	parse: function(value){
		return value.push ? value : value.hexToRgb(true);
	},

	getNow: function(from, to, fx){
		var now = [];
		for (var i = 0; i < from.length; i++) now[i] = Math.round(fx.compute(from[i], to[i]));
		return now;
	},

	getValue: function(value){
		return 'rgb(' + value.join(',') + ')';
	}

};

Fx.Style = Fx.Base.extend({

	initialize: function(el, property, options){
		this.element = $(el);
		this.property = property;
		this.parent(options);
	},

	/*
	Property: hide
		Same as <Fx.Base.set> (0); hides the element immediately without transition.
	*/

	hide: function(){
		return this.set(0);
	},

	setNow: function(){
		this.now = this.css.getNow(this.from, this.to, this);
	},

	/*
	Property: set
		Sets the element's css property (specified at instantiation) to the specified value immediately.

	Example:
		(start code)
		var marginChange = new Fx.Style('myElement', 'margin-top', {duration:500});
		marginChange.set(10); //margin-top is set to 10px immediately
		(end)
	*/

	set: function(to){
		this.css = Fx.CSS.select(this.property, to);
		return this.parent(this.css.parse(to));
	},

	/*
	Property: start
		Displays the transition to the value/values passed in

	Arguments:
		from - (integer; optional) the starting position for the transition
		to - (integer) the ending position for the transition

	Note:
		If you provide only one argument, the transition will use the current css value for its starting value.

	Example:
		(start code)
		var marginChange = new Fx.Style('myElement', 'margin-top', {duration:500});
		marginChange.start(10); //tries to read current margin top value and goes from current to 10
		(end)
	*/

	start: function(from, to){
		if (this.timer && this.options.wait) return this;
		var parsed = Fx.CSS.parse(this.element, this.property, [from, to]);
		this.css = parsed.css;
		return this.parent(parsed.from, parsed.to);
	},

	increase: function(){
		this.element.setStyle(this.property, this.css.getValue(this.now, this.options.unit, this.property));
	}

});

Element.extend({

	/*
	Property: effect
		Applies an <Fx.Style> to the Element; This a shortcut for <Fx.Style>.

	Arguments:
		property - (string) the css property to alter
		options - (object; optional) key/value set of options (see <Fx.Style>)

	Example:
		>var myEffect = $('myElement').effect('height', {duration: 1000, transition: Fx.Transitions.linear});
		>myEffect.start(10, 100);
		>//OR
		>$('myElement').effect('height', {duration: 1000, transition: Fx.Transitions.linear}).start(10,100);
	*/

	effect: function(property, options){
		return new Fx.Style(this, property, options);
	}

});

Fx.Styles = Fx.Base.extend({

	initialize: function(el, options){
		this.element = $(el);
		this.parent(options);
	},

	setNow: function(){
		for (var p in this.from) this.now[p] = this.css[p].getNow(this.from[p], this.to[p], this);
	},

	set: function(to){
		var parsed = {};
		this.css = {};
		for (var p in to){
			this.css[p] = Fx.CSS.select(p, to[p]);
			parsed[p] = this.css[p].parse(to[p]);
		}
		return this.parent(parsed);
	},

	/*
	Property: start
		Executes a transition for any number of css properties in tandem.

	Arguments:
		obj - an object containing keys that specify css properties to alter and values that specify either the from/to values (as an array) or just the end value (an integer).

	Example:
		see <Fx.Styles>
	*/

	start: function(obj){
		if (this.timer && this.options.wait) return this;
		this.now = {};
		this.css = {};
		var from = {}, to = {};
		for (var p in obj){
			var parsed = Fx.CSS.parse(this.element, p, obj[p]);
			from[p] = parsed.from;
			to[p] = parsed.to;
			this.css[p] = parsed.css;
		}
		return this.parent(from, to);
	},

	increase: function(){
		for (var p in this.now) this.element.setStyle(p, this.css[p].getValue(this.now[p], this.options.unit, p));
	}

});

Element.extend({

	/*
	Property: effects
		Applies an <Fx.Styles> to the Element; This a shortcut for <Fx.Styles>.

	Example:
		>var myEffects = $(myElement).effects({duration: 1000, transition: Fx.Transitions.Sine.easeInOut});
 		>myEffects.start({'height': [10, 100], 'width': [900, 300]});
	*/

	effects: function(options){
		return new Fx.Styles(this, options);
	}

});

Fx.Elements = Fx.Base.extend({

	initialize: function(elements, options){
		this.elements = $$(elements);
		this.parent(options);
	},

	setNow: function(){
		for (var i in this.from){
			var iFrom = this.from[i], iTo = this.to[i], iCss = this.css[i], iNow = this.now[i] = {};
			for (var p in iFrom) iNow[p] = iCss[p].getNow(iFrom[p], iTo[p], this);
		}
	},

	set: function(to){
		var parsed = {};
		this.css = {};
		for (var i in to){
			var iTo = to[i], iCss = this.css[i] = {}, iParsed = parsed[i] = {};
			for (var p in iTo){
				iCss[p] = Fx.CSS.select(p, iTo[p]);
				iParsed[p] = iCss[p].parse(iTo[p]);
			}
		}
		return this.parent(parsed);
	},

	/*
	Property: start
		Applies the passed in style transitions to each object named (see example). Each item in the collection is refered to as a numerical string ("1" for instance). The first item is "0", the second "1", etc.

	Example:
		(start code)
		var myElementsEffects = new Fx.Elements($$('a'));
		myElementsEffects.start({
			'0': { //let's change the first element's opacity and width
				'opacity': [0,1],
				'width': [100,200]
			},
			'4': { //and the fifth one's opacity
				'opacity': [0.2, 0.5]
			}
		});
		(end)
	*/

	start: function(obj){
		if (this.timer && this.options.wait) return this;
		this.now = {};
		this.css = {};
		var from = {}, to = {};
		for (var i in obj){
			var iProps = obj[i], iFrom = from[i] = {}, iTo = to[i] = {}, iCss = this.css[i] = {};
			for (var p in iProps){
				var parsed = Fx.CSS.parse(this.elements[i], p, iProps[p]);
				iFrom[p] = parsed.from;
				iTo[p] = parsed.to;
				iCss[p] = parsed.css;
			}
		}
		return this.parent(from, to);
	},

	increase: function(){
		for (var i in this.now){
			var iNow = this.now[i], iCss = this.css[i];
			for (var p in iNow) this.elements[i].setStyle(p, iCss[p].getValue(iNow[p], this.options.unit, p));
		}
	}

});

Fx.Scroll = Fx.Base.extend({

	options: {
		overflown: [],
		offset: {'x': 0, 'y': 0},
		wheelStops: true
	},

	initialize: function(element, options){
		this.now = [];
		this.element = $(element);
		this.bound = {'stop': this.stop.bind(this, false)};
		this.parent(options);
		if (this.options.wheelStops){
			this.addEvent('onStart', function(){
				document.addEvent('mousewheel', this.bound.stop);
			}.bind(this));
			this.addEvent('onComplete', function(){
				document.removeEvent('mousewheel', this.bound.stop);
			}.bind(this));
		}
	},

	setNow: function(){
		for (var i = 0; i < 2; i++) this.now[i] = this.compute(this.from[i], this.to[i]);
	},

	/*
	Property: scrollTo
		Scrolls the chosen element to the x/y coordinates.

	Arguments:
		x - the x coordinate to scroll the element to
		y - the y coordinate to scroll the element to
	*/

	scrollTo: function(x, y){
		if (this.timer && this.options.wait) return this;
		var el = this.element.getSize();
		var values = {'x': x, 'y': y};
		for (var z in el.size){
			var max = el.scrollSize[z] - el.size[z];
			if ($chk(values[z])) values[z] = ($type(values[z]) == 'number') ? values[z].limit(0, max) : max;
			else values[z] = el.scroll[z];
			values[z] += this.options.offset[z];
		}
		return this.start([el.scroll.x, el.scroll.y], [values.x, values.y]);
	},

	/*
	Property: toTop
		Scrolls the chosen element to its maximum top.
	*/

	toTop: function(){
		return this.scrollTo(false, 0);
	},

	/*
	Property: toBottom
		Scrolls the chosen element to its maximum bottom.
	*/

	toBottom: function(){
		return this.scrollTo(false, 'full');
	},

	/*
	Property: toLeft
		Scrolls the chosen element to its maximum left.
	*/

	toLeft: function(){
		return this.scrollTo(0, false);
	},

	/*
	Property: toRight
		Scrolls the chosen element to its maximum right.
	*/

	toRight: function(){
		return this.scrollTo('full', false);
	},

	/*
	Property: toElement
		Scrolls the specified element to the position the passed in element is found.

	Arguments:
		el - the $(element) to scroll the window to
	*/

	toElement: function(el){
		var parent = this.element.getPosition(this.options.overflown);
		var target = $(el).getPosition(this.options.overflown);
		return this.scrollTo(target.x - parent.x, target.y - parent.y);
	},

	increase: function(){
		this.element.scrollTo(this.now[0], this.now[1]);
	}

});

Fx.Slide = Fx.Base.extend({

	options: {
		mode: 'vertical'
	},

	initialize: function(el, options){
		this.element = $(el);
		this.wrapper = new Element('div', {'styles': $extend(this.element.getStyles('margin'), {'overflow': 'hidden'})}).injectAfter(this.element).adopt(this.element);
		this.element.setStyle('margin', 0);
		this.setOptions(options);
		this.now = [];
		this.parent(this.options);
		this.open = true;
		this.addEvent('onComplete', function(){
			this.open = (this.now[0] === 0);
		});
		if (window.webkit419) this.addEvent('onComplete', function(){
			if (this.open) this.element.remove().inject(this.wrapper);
		});
	},

	setNow: function(){
		for (var i = 0; i < 2; i++) this.now[i] = this.compute(this.from[i], this.to[i]);
	},

	vertical: function(){
		this.margin = 'margin-top';
		this.layout = 'height';
		this.offset = this.element.offsetHeight;
	},

	horizontal: function(){
		this.margin = 'margin-left';
		this.layout = 'width';
		this.offset = this.element.offsetWidth;
	},

	/*
	Property: slideIn
		Slides the elements in view horizontally or vertically.

	Arguments:
		mode - (optional, string) 'horizontal' or 'vertical'; defaults to options.mode.
	*/

	slideIn: function(mode){
		this[mode || this.options.mode]();
		return this.start([this.element.getStyle(this.margin).toInt(), this.wrapper.getStyle(this.layout).toInt()], [0, this.offset]);
	},

	/*
	Property: slideOut
		Sides the elements out of view horizontally or vertically.

	Arguments:
		mode - (optional, string) 'horizontal' or 'vertical'; defaults to options.mode.
	*/

	slideOut: function(mode){
		this[mode || this.options.mode]();
		return this.start([this.element.getStyle(this.margin).toInt(), this.wrapper.getStyle(this.layout).toInt()], [-this.offset, 0]);
	},

	/*
	Property: hide
		Hides the element without a transition.

	Arguments:
		mode - (optional, string) 'horizontal' or 'vertical'; defaults to options.mode.
	*/

	hide: function(mode){
		this[mode || this.options.mode]();
		this.open = false;
		return this.set([-this.offset, 0]);
	},

	/*
	Property: show
		Shows the element without a transition.

	Arguments:
		mode - (optional, string) 'horizontal' or 'vertical'; defaults to options.mode.
	*/

	show: function(mode){
		this[mode || this.options.mode]();
		this.open = true;
		return this.set([0, this.offset]);
	},

	/*
	Property: toggle
		Slides in or Out the element, depending on its state

	Arguments:
		mode - (optional, string) 'horizontal' or 'vertical'; defaults to options.mode.

	*/

	toggle: function(mode){
		if (this.wrapper.offsetHeight == 0 || this.wrapper.offsetWidth == 0) return this.slideIn(mode);
		return this.slideOut(mode);
	},

	increase: function(){
		this.element.setStyle(this.margin, this.now[0] + this.options.unit);
		this.wrapper.setStyle(this.layout, this.now[1] + this.options.unit);
	}

});

Fx.Transition = function(transition, params){
	params = params || [];
	if ($type(params) != 'array') params = [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 Abstract({

	/*
	Property: linear
		displays a linear transition.

	Graph:
		(see Linear.png)
	*/

	linear: function(p){
		return p;
	}

});

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

Fx.Transitions.compat = function(transition){
	['In', 'Out', 'InOut'].each(function(easeType){
		Fx.Transitions[transition.toLowerCase() + easeType] = Fx.Transitions[transition]['ease' + easeType];
	});
};

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 = - Math.pow((11 - 6 * a - 11 * p) / 4, 2) + b * b;
				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]);
	});
	

	Fx.Transitions.compat(transition);

});


var Drag = {};


Drag.Base = new Class({

	options: {
		handle: false,
		unit: 'px',
		onStart: Class.empty,
		onBeforeStart: Class.empty,
		onComplete: Class.empty,
		onSnap: Class.empty,
		onDrag: Class.empty,
		limit: false,
		modifiers: {x: 'left', y: 'top'},
		grid: false,
		snap: 6
	},

	initialize: function(el, options){
		this.setOptions(options);
		this.element = $(el);
		this.handle = $(this.options.handle) || this.element;
		this.mouse = {'now': {}, 'pos': {}};
		this.value = {'start': {}, 'now': {}};
		this.bound = {
			'start': this.start.bindWithEvent(this),
			'check': this.check.bindWithEvent(this),
			'drag': this.drag.bindWithEvent(this),
			'stop': this.stop.bind(this)
		};
		this.attach();
		if (this.options.initialize) this.options.initialize.call(this);
	},

	attach: function(){
		this.handle.addEvent('mousedown', this.bound.start);
		return this;
	},

	detach: function(){
		this.handle.removeEvent('mousedown', this.bound.start);
		return this;
	},

	start: function(event){
		this.fireEvent('onBeforeStart', this.element);
		this.mouse.start = event.page;
		var limit = this.options.limit;
		this.limit = {'x': [], 'y': []};
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			this.value.now[z] = this.element.getStyle(this.options.modifiers[z]).toInt();
			this.mouse.pos[z] = event.page[z] - this.value.now[z];
			if (limit && limit[z]){
				for (var i = 0; i < 2; i++){
					if ($chk(limit[z][i])) this.limit[z][i] = ($type(limit[z][i]) == 'function') ? limit[z][i]() : limit[z][i];
				}
			}
		}
		if ($type(this.options.grid) == 'number') this.options.grid = {'x': this.options.grid, 'y': this.options.grid};
		document.addListener('mousemove', this.bound.check);
		document.addListener('mouseup', this.bound.stop);
		this.fireEvent('onStart', this.element);
		event.stop();
	},

	check: function(event){
		var distance = Math.round(Math.sqrt(Math.pow(event.page.x - this.mouse.start.x, 2) + Math.pow(event.page.y - this.mouse.start.y, 2)));
		if (distance > this.options.snap){
			document.removeListener('mousemove', this.bound.check);
			document.addListener('mousemove', this.bound.drag);
			this.drag(event);
			this.fireEvent('onSnap', this.element);
		}
		event.stop();
	},

	drag: function(event){
		this.out = false;
		this.mouse.now = event.page;
		for (var z in this.options.modifiers){
			if (!this.options.modifiers[z]) continue;
			this.value.now[z] = this.mouse.now[z] - this.mouse.pos[z];
			if (this.limit[z]){
				if ($chk(this.limit[z][1]) && (this.value.now[z] > this.limit[z][1])){
					this.value.now[z] = this.limit[z][1];
					this.out = true;
				} else if ($chk(this.limit[z][0]) && (this.value.now[z] < this.limit[z][0])){
					this.value.now[z] = this.limit[z][0];
					this.out = true;
				}
			}
			if (this.options.grid[z]) this.value.now[z] -= (this.value.now[z] % this.options.grid[z]);
			this.element.setStyle(this.options.modifiers[z], this.value.now[z] + this.options.unit);
		}
		this.fireEvent('onDrag', this.element);
		event.stop();
	},

	stop: function(){
		document.removeListener('mousemove', this.bound.check);
		document.removeListener('mousemove', this.bound.drag);
		document.removeListener('mouseup', this.bound.stop);
		this.fireEvent('onComplete', this.element);
	}

});

Drag.Base.implement(new Events, new Options);


Element.extend({



	makeResizable: function(options){
		return new Drag.Base(this, $merge({modifiers: {x: 'width', y: 'height'}}, options));
	}

});



Drag.Move = Drag.Base.extend({

	options: {
		droppables: [],
		container: false,
		overflown: []
	},

	initialize: function(el, options){
		this.setOptions(options);
		this.element = $(el);
		this.droppables = $$(this.options.droppables);
		this.container = $(this.options.container);
		this.position = {'element': this.element.getStyle('position'), 'container': false};
		if (this.container) this.position.container = this.container.getStyle('position');
		if (!['relative', 'absolute', 'fixed'].contains(this.position.element)) this.position.element = 'absolute';
		var top = this.element.getStyle('top').toInt();
		var left = this.element.getStyle('left').toInt();
		if (this.position.element == 'absolute' && !['relative', 'absolute', 'fixed'].contains(this.position.container)){
			top = $chk(top) ? top : this.element.getTop(this.options.overflown);
			left = $chk(left) ? left : this.element.getLeft(this.options.overflown);
		} else {
			top = $chk(top) ? top : 0;
			left = $chk(left) ? left : 0;
		}
		this.element.setStyles({'top': top, 'left': left, 'position': this.position.element});
		this.parent(this.element);
	},

	start: function(event){
		this.overed = null;
		if (this.container){
			var cont = this.container.getCoordinates();
			var el = this.element.getCoordinates();
			if (this.position.element == 'absolute' && !['relative', 'absolute', 'fixed'].contains(this.position.container)){
				this.options.limit = {
					'x': [cont.left, cont.right - el.width],
					'y': [cont.top, cont.bottom - el.height]
				};
			} else {
				this.options.limit = {
					'y': [0, cont.height - el.height],
					'x': [0, cont.width - el.width]
				};
			}
		}
		this.parent(event);
	},

	drag: function(event){
		this.parent(event);
		var overed = this.out ? false : this.droppables.filter(this.checkAgainst, this).getLast();
		if (this.overed != overed){
			if (this.overed) this.overed.fireEvent('leave', [this.element, this]);
			this.overed = overed ? overed.fireEvent('over', [this.element, this]) : null;
		}
		return this;
	},

	checkAgainst: function(el){
		el = el.getCoordinates(this.options.overflown);
		var now = this.mouse.now;
		return (now.x > el.left && now.x < el.right && now.y < el.bottom && now.y > el.top);
	},

	stop: function(){
		if (this.overed && !this.out) this.overed.fireEvent('drop', [this.element, this]);
		else this.element.fireEvent('emptydrop', this);
		this.parent();
		return this;
	}

});


Element.extend({



	makeDraggable: function(options){
		return new Drag.Move(this, options);
	}

});


var XHR = new Class({

	options: {
		method: 'post',
		async: true,
		onRequest: Class.empty,
		onSuccess: Class.empty,
		onFailure: Class.empty,
		urlEncoded: true,
		encoding: 'utf-8',
		autoCancel: false,
		headers: {}
	},

	setTransport: function(){
		this.transport = (window.XMLHttpRequest) ? new XMLHttpRequest() : (window.ie ? new ActiveXObject('Microsoft.XMLHTTP') : false);
		return this;
	},

	initialize: function(options){
		this.setTransport().setOptions(options);
		this.options.isSuccess = this.options.isSuccess || this.isSuccess;
		this.headers = {};
		if (this.options.urlEncoded && this.options.method == 'post'){
			var encoding = (this.options.encoding) ? '; charset=' + this.options.encoding : '';
			this.setHeader('Content-type', 'application/x-www-form-urlencoded' + encoding);
		}
		if (this.options.initialize) this.options.initialize.call(this);
	},

	onStateChange: function(){
		if (this.transport.readyState != 4 || !this.running) return;
		this.running = false;
		var status = 0;
		try {status = this.transport.status;} catch(e){};
		if (this.options.isSuccess.call(this, status)) this.onSuccess();
		else this.onFailure();
		this.transport.onreadystatechange = Class.empty;
	},

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

	onSuccess: function(){
		this.response = {
			'text': this.transport.responseText,
			'xml': this.transport.responseXML
		};
		this.fireEvent('onSuccess', [this.response.text, this.response.xml]);
		this.callChain();
	},

	onFailure: function(){
		this.fireEvent('onFailure', this.transport);
	},



	setHeader: function(name, value){
		this.headers[name] = value;
		return this;
	},


	send: function(url, data){
		if (this.options.autoCancel) this.cancel();
		else if (this.running) return this;
		this.running = true;
		if (data && this.options.method == 'get'){
			url = url + (url.contains('?') ? '&' : '?') + data;
			data = null;
		}
		this.transport.open(this.options.method.toUpperCase(), url, this.options.async);
		this.transport.onreadystatechange = this.onStateChange.bind(this);
		if ((this.options.method == 'post') && this.transport.overrideMimeType) this.setHeader('Connection', 'close');
		$extend(this.headers, this.options.headers);
		for (var type in this.headers) try {this.transport.setRequestHeader(type, this.headers[type]);} catch(e){};
		this.fireEvent('onRequest');
		this.transport.send($pick(data, null));
		return this;
	},


	cancel: function(){
		if (!this.running) return this;
		this.running = false;
		this.transport.abort();
		this.transport.onreadystatechange = Class.empty;
		this.setTransport();
		this.fireEvent('onCancel');
		return this;
	}

});

XHR.implement(new Chain, new Events, new Options);



var Ajax = XHR.extend({

	options: {
		data: null,
		update: null,
		onComplete: Class.empty,
		evalScripts: false,
		evalResponse: false
	},

	initialize: function(url, options){
		this.addEvent('onSuccess', this.onComplete);
		this.setOptions(options);

		this.options.data = this.options.data || this.options.postBody;

		if (!['post', 'get'].contains(this.options.method)){
			this._method = '_method=' + this.options.method;
			this.options.method = 'post';
		}
		this.parent();
		this.setHeader('X-Requested-With', 'XMLHttpRequest');
		this.setHeader('Accept', 'text/javascript, text/html, application/xml, text/xml, */*');
		this.url = url;
	},

	onComplete: function(){
		if (this.options.update) $(this.options.update).empty().setHTML(this.response.text);
		if (this.options.evalScripts || this.options.evalResponse) this.evalScripts();
		this.fireEvent('onComplete', [this.response.text, this.response.xml], 20);
	},


	request: function(data){
		data = data || this.options.data;
		switch($type(data)){
			case 'element': data = $(data).toQueryString(); break;
			case 'object': data = Object.toQueryString(data);
		}
		if (this._method) data = (data) ? [this._method, data].join('&') : this._method;
		return this.send(this.url, data);
	},


	evalScripts: function(){
		var script, scripts;
		if (this.options.evalResponse || (/(ecma|java)script/).test(this.getHeader('Content-type'))) scripts = this.response.text;
		else {
			scripts = [];
			var regexp = /<script[^>]*>([\s\S]*?)<\/script>/gi;
			while ((script = regexp.exec(this.response.text))) scripts.push(script[1]);
			scripts = scripts.join('\n');
		}
		if (scripts) (window.execScript) ? window.execScript(scripts) : window.setTimeout(scripts, 0);
	},


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

});


Object.toQueryString = function(source){
	var queryString = [];
	for (var property in source) queryString.push(encodeURIComponent(property) + '=' + encodeURIComponent(source[property]));
	return queryString.join('&');
};



Element.extend({

	send: function(options){
		return new Ajax(this.getProperty('action'), $merge({data: this.toQueryString()}, options, {method: 'post'})).request();
	}

});



var Cookie = new Abstract({

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

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


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

	remove: function(cookie, options){
		if ($type(cookie) == 'object') this.set(cookie.key, '', $merge(cookie, {duration: -1}));
		else this.set(cookie, '', $merge(options, {duration: -1}));
	}

});


var Json = {

	toString: function(obj){
		switch($type(obj)){
			case 'string':
				return '"' + obj.replace(/(["\\])/g, '\\$1') + '"';
			case 'array':
				return '[' + obj.map(Json.toString).join(',') + ']';
			case 'object':
				var string = [];
				for (var property in obj) string.push(Json.toString(property) + ':' + Json.toString(obj[property]));
				return '{' + string.join(',') + '}';
			case 'number':
				if (isFinite(obj)) break;
			case false:
				return 'null';
		}
		return String(obj);
	},

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

};


Json.Remote = XHR.extend({

	initialize: function(url, options){
		this.url = url;
		this.addEvent('onSuccess', this.onComplete);
		this.parent(options);
		this.setHeader('X-Request', 'JSON');
	},

	send: function(obj){
		return this.parent(this.url, 'json=' + Json.toString(obj));
	},

	onComplete: function(){
		this.fireEvent('onComplete', [Json.evaluate(this.response.text, this.options.secure)]);
	}

});



var Asset = new Abstract({

	javascript: function(source, properties){
		properties = $merge({
			'onload': Class.empty
		}, properties);
		var script = new Element('script', {'src': source}).addEvents({
			'load': properties.onload,
			'readystatechange': function(){
				if (this.readyState == 'complete') this.fireEvent('load');
			}
		});
		delete properties.onload;
		return script.setProperties(properties).inject(document.head);
	},


	css: function(source, properties){
		return new Element('link', $merge({
			'rel': 'stylesheet', 'media': 'screen', 'type': 'text/css', 'href': source
		}, properties)).inject(document.head);
	},


	image: function(source, properties){
		properties = $merge({
			'onload': Class.empty,
			'onabort': Class.empty,
			'onerror': Class.empty
		}, properties);
		var image = new Image();
		image.src = source;
		var element = new Element('img', {'src': source});
		['load', 'abort', 'error'].each(function(type){
			var event = properties['on' + type];
			delete properties['on' + type];
			element.addEvent(type, function(){
				this.removeEvent(type, arguments.callee);
				event.call(this);
			});
		});
		if (image.width && image.height) element.fireEvent('load', element, 1);
		return element.setProperties(properties);
	},

	images: function(sources, options){
		options = $merge({
			onComplete: Class.empty,
			onProgress: Class.empty
		}, options);
		if (!sources.push) sources = [sources];
		var images = [];
		var counter = 0;
		sources.each(function(source){
			var img = new Asset.image(source, {
				'onload': function(){
					options.onProgress.call(this, counter);
					counter++;
					if (counter == sources.length) options.onComplete();
				}
			});
			images.push(img);
		});
		return new Elements(images);
	}

});


var Hash = new Class({

	length: 0,

	initialize: function(object){
		this.obj = object || {};
		this.setLength();
	},

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



	hasKey: function(key){
		return (key in this.obj);
	},



	set: function(key, value){
		if (!this.hasKey(key)) this.length++;
		this.obj[key] = value;
		return this;
	},

	setLength: function(){
		this.length = 0;
		for (var p in this.obj) this.length++;
		return this;
	},


	remove: function(key){
		if (this.hasKey(key)){
			delete this.obj[key];
			this.length--;
		}
		return this;
	},



	each: function(fn, bind){
		$each(this.obj, fn, bind);
	},


	extend: function(obj){
		$extend(this.obj, obj);
		return this.setLength();
	},


	merge: function(){
		this.obj = $merge.apply(null, [this.obj].extend(arguments));
		return this.setLength();
	},


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

	/*
	Property: keys
		Returns an array containing all the keys, in the same order as the values returned by <Hash.values>.

	Returns:
		An array containing all the keys of the hash
	*/

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

	/*
	Property: values
		Returns an array containing all the values, in the same order as the keys returned by <Hash.keys>.

	Returns:
		An array containing all the values of the hash
	*/

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

});


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


Hash.Cookie = Hash.extend({

	initialize: function(name, options){
		this.name = name;
		this.options = $extend({'autoSave': true}, options || {});
		this.load();
	},

	/*
	Property: save
		Saves the Hash to the cookie. If the hash is empty, removes the cookie.

	Returns:
		Returns false when the JSON string cookie is too long (4kb), otherwise true.

	Example:
		(start code)
		var login = new Hash.Cookie('userstatus', {autoSave: false});

		login.extend({
			'username': 'John',
			'credentials': [4, 7, 9]
		});
		login.set('last_message', 'User logged in!');

		login.save(); // finally save the Hash
		(end)
	*/

	save: function(){
		if (this.length == 0){
			Cookie.remove(this.name, this.options);
			return true;
		}
		var str = Json.toString(this.obj);
		if (str.length > 4096) return false; //cookie would be truncated!
		Cookie.set(this.name, str, this.options);
		return true;
	},
	
	/*
	Property: load
		Loads the cookie and assigns it to the Hash.
	*/

	load: function(){
		this.obj = Json.evaluate(Cookie.get(this.name), true) || {};
		this.setLength();
	}

});

Hash.Cookie.Methods = {};
['extend', 'set', 'merge', 'empty', 'remove'].each(function(method){
	Hash.Cookie.Methods[method] = function(){
		Hash.prototype[method].apply(this, arguments);
		if (this.options.autoSave) this.save();
		return this;
	};
});
Hash.Cookie.implement(Hash.Cookie.Methods);


var Color = new Class({

	initialize: function(color, type){
		type = type || (color.push ? 'rgb' : 'hex');
		var rgb, hsb;
		switch(type){
			case 'rgb':
				rgb = color;
				hsb = rgb.rgbToHsb();
				break;
			case 'hsb':
				rgb = color.hsbToRgb();
				hsb = color;
				break;
			default:
				rgb = color.hexToRgb(true);
				hsb = rgb.rgbToHsb();
		}
		rgb.hsb = hsb;
		rgb.hex = rgb.rgbToHex();
		return $extend(rgb, Color.prototype);
	},

	/*
	Property: mix
		Mixes two or more colors with the Color.
		
	Arguments:
		color - a color to mix. you can use as arguments how many colors as you want to mix with the original one.
		alpha - if you use a number as the last argument, it will be threated as the amount of the color to mix.
	*/

	mix: function(){
		var colors = $A(arguments);
		var alpha = ($type(colors[colors.length - 1]) == 'number') ? colors.pop() : 50;
		var rgb = this.copy();
		colors.each(function(color){
			color = new Color(color);
			for (var i = 0; i < 3; i++) rgb[i] = Math.round((rgb[i] / 100 * (100 - alpha)) + (color[i] / 100 * alpha));
		});
		return new Color(rgb, 'rgb');
	},

	/*
	Property: invert
		Inverts the Color.
	*/

	invert: function(){
		return new Color(this.map(function(value){
			return 255 - value;
		}));
	},

	/*
	Property: setHue
		Modifies the hue of the Color, and returns a new one.
	
	Arguments:
		value - the hue to set
	*/

	setHue: function(value){
		return new Color([value, this.hsb[1], this.hsb[2]], 'hsb');
	},

	/*
	Property: setSaturation
		Changes the saturation of the Color, and returns a new one.
	
	Arguments:
		percent - the percentage of the saturation to set
	*/

	setSaturation: function(percent){
		return new Color([this.hsb[0], percent, this.hsb[2]], 'hsb');
	},

	/*
	Property: setBrightness
		Changes the brightness of the Color, and returns a new one.
	
	Arguments:
		percent - the percentage of the brightness to set
	*/

	setBrightness: function(percent){
		return new Color([this.hsb[0], this.hsb[1], percent], 'hsb');
	}

});



function $RGB(r, g, b){
	return new Color([r, g, b], 'rgb');
};



function $HSB(h, s, b){
	return new Color([h, s, b], 'hsb');
};


Array.extend({
	
	/*
	Property: rgbToHsb
		Converts a RGB array to an HSB array.

	Returns:
		the HSB array.
	*/

	rgbToHsb: function(){
		var red = this[0], green = this[1], blue = this[2];
		var hue, saturation, brightness;
		var max = Math.max(red, green, blue), min = Math.min(red, green, blue);
		var delta = max - min;
		brightness = max / 255;
		saturation = (max != 0) ? delta / max : 0;
		if (saturation == 0){
			hue = 0;
		} else {
			var rr = (max - red) / delta;
			var gr = (max - green) / delta;
			var br = (max - blue) / delta;
			if (red == max) hue = br - gr;
			else if (green == max) hue = 2 + rr - br;
			else hue = 4 + gr - rr;
			hue /= 6;
			if (hue < 0) hue++;
		}
		return [Math.round(hue * 360), Math.round(saturation * 100), Math.round(brightness * 100)];
	},

	/*
	Property: hsbToRgb
		Converts an HSB array to an RGB array.

	Returns:
		the RGB array.
	*/

	hsbToRgb: function(){
		var br = Math.round(this[2] / 100 * 255);
		if (this[1] == 0){
			return [br, br, br];
		} else {
			var hue = this[0] % 360;
			var f = hue % 60;
			var p = Math.round((this[2] * (100 - this[1])) / 10000 * 255);
			var q = Math.round((this[2] * (6000 - this[1] * f)) / 600000 * 255);
			var t = Math.round((this[2] * (6000 - this[1] * (60 - f))) / 600000 * 255);
			switch(Math.floor(hue / 60)){
				case 0: return [br, t, p];
				case 1: return [q, br, p];
				case 2: return [p, br, t];
				case 3: return [p, q, br];
				case 4: return [t, p, br];
				case 5: return [br, p, q];
			}
		}
		return false;
	}

});



var Scroller = new Class({

	options: {
		area: 20,
		velocity: 1,
		onChange: function(x, y){
			this.element.scrollTo(x, y);
		}
	},

	initialize: function(element, options){
		this.setOptions(options);
		this.element = $(element);
		this.mousemover = ([window, document].contains(element)) ? $(document.body) : this.element;
	},

	/*
	Property: start
		The scroller starts listening to mouse movements.
	*/

	start: function(){
		this.coord = this.getCoords.bindWithEvent(this);
		this.mousemover.addListener('mousemove', this.coord);
	},

	/*
	Property: stop
		The scroller stops listening to mouse movements.
	*/

	stop: function(){
		this.mousemover.removeListener('mousemove', this.coord);
		this.timer = $clear(this.timer);
	},

	getCoords: function(event){
		this.page = (this.element == window) ? event.client : event.page;
		if (!this.timer) this.timer = this.scroll.periodical(50, this);
	},

	scroll: function(){
		var el = this.element.getSize();
		var pos = this.element.getPosition();

		var change = {'x': 0, 'y': 0};
		for (var z in this.page){
			if (this.page[z] < (this.options.area + pos[z]) && el.scroll[z] != 0)
				change[z] = (this.page[z] - this.options.area - pos[z]) * this.options.velocity;
			else if (this.page[z] + this.options.area > (el.size[z] + pos[z]) && el.scroll[z] + el.size[z] != el.scrollSize[z])
				change[z] = (this.page[z] - el.size[z] + this.options.area - pos[z]) * this.options.velocity;
		}
		if (change.y || change.x) this.fireEvent('onChange', [el.scroll.x + change.x, el.scroll.y + change.y]);
	}

});

Scroller.implement(new Events, new Options);



var Slider = new Class({

	options: {
		onChange: Class.empty,
		onComplete: Class.empty,
		onTick: function(pos){
			this.knob.setStyle(this.p, pos);
		},
		mode: 'horizontal',
		steps: 100,
		offset: 0
	},

	initialize: function(el, knob, options){
		this.element = $(el);
		this.knob = $(knob);
		this.setOptions(options);
		this.previousChange = -1;
		this.previousEnd = -1;
		this.step = -1;
		this.element.addEvent('mousedown', this.clickedElement.bindWithEvent(this));
		var mod, offset;
		switch(this.options.mode){
			case 'horizontal':
				this.z = 'x';
				this.p = 'left';
				mod = {'x': 'left', 'y': false};
				offset = 'offsetWidth';
				break;
			case 'vertical':
				this.z = 'y';
				this.p = 'top';
				mod = {'x': false, 'y': 'top'};
				offset = 'offsetHeight';
		}
		this.max = this.element[offset] - this.knob[offset] + (this.options.offset * 2);
		this.half = this.knob[offset]/2;
		this.getPos = this.element['get' + this.p.capitalize()].bind(this.element);
		this.knob.setStyle('position', 'relative').setStyle(this.p, - this.options.offset);
		var lim = {};
		lim[this.z] = [- this.options.offset, this.max - this.options.offset];
		this.drag = new Drag.Base(this.knob, {
			limit: lim,
			modifiers: mod,
			snap: 0,
			onStart: function(){
				this.draggedKnob();
			}.bind(this),
			onDrag: function(){
				this.draggedKnob();
			}.bind(this),
			onComplete: function(){
				this.draggedKnob();
				this.end();
			}.bind(this)
		});
		if (this.options.initialize) this.options.initialize.call(this);
	},

	/*
	Property: set
		The slider will get the step you pass.

	Arguments:
		step - one integer
	*/

	set: function(step){
		this.step = step.limit(0, this.options.steps);
		this.checkStep();
		this.end();
		this.fireEvent('onTick', this.toPosition(this.step));
		return this;
	},

	clickedElement: function(event){
		var position = event.page[this.z] - this.getPos() - this.half;
		position = position.limit(-this.options.offset, this.max -this.options.offset);
		this.step = this.toStep(position);
		this.checkStep();
		this.end();
		this.fireEvent('onTick', position);
	},

	draggedKnob: function(){
		this.step = this.toStep(this.drag.value.now[this.z]);
		this.checkStep();
	},

	checkStep: function(){
		if (this.previousChange != this.step){
			this.previousChange = this.step;
			this.fireEvent('onChange', this.step);
		}
	},

	end: function(){
		if (this.previousEnd !== this.step){
			this.previousEnd = this.step;
			this.fireEvent('onComplete', this.step + '');
		}
	},

	toStep: function(position){
		return Math.round((position + this.options.offset) / this.max * this.options.steps);
	},

	toPosition: function(step){
		return this.max * step / this.options.steps;
	}

});

Slider.implement(new Events);
Slider.implement(new Options);


var SmoothScroll = Fx.Scroll.extend({

	initialize: function(options){
		this.parent(window, options);
		this.links = (this.options.links) ? $$(this.options.links) : $$(document.links);
		var location = window.location.href.match(/^[^#]*/)[0] + '#';
		this.links.each(function(link){
			if (link.href.indexOf(location) != 0) return;
			var anchor = link.href.substr(location.length);
			if (anchor && $(anchor)) this.useLink(link, anchor);
		}, this);
		if (!window.webkit419) this.addEvent('onComplete', function(){
			window.location.hash = this.anchor;
		});
	},

	useLink: function(link, anchor){
		link.addEvent('click', function(event){
			this.anchor = anchor;
			this.toElement(anchor);
			event.stop();
		}.bindWithEvent(this));
	}

});


var Sortables = new Class({

	options: {
		handles: false,
		onStart: Class.empty,
		onComplete: Class.empty,
		ghost: true,
		snap: 3,
		onDragStart: function(element, ghost){
			ghost.setStyle('opacity', 0.7);
			element.setStyle('opacity', 0.7);
		},
		onDragComplete: function(element, ghost){
			element.setStyle('opacity', 1);
			ghost.remove();
			this.trash.remove();
		}
	},

	initialize: function(list, options){
		this.setOptions(options);
		this.list = $(list);
		this.elements = this.list.getChildren();
		this.handles = (this.options.handles) ? $$(this.options.handles) : this.elements;
		this.bound = {
			'start': [],
			'moveGhost': this.moveGhost.bindWithEvent(this)
		};
		for (var i = 0, l = this.handles.length; i < l; i++){
			this.bound.start[i] = this.start.bindWithEvent(this, this.elements[i]);
		}
		this.attach();
		if (this.options.initialize) this.options.initialize.call(this);
		this.bound.move = this.move.bindWithEvent(this);
		this.bound.end = this.end.bind(this);
	},

	attach: function(){
		this.handles.each(function(handle, i){
			handle.addEvent('mousedown', this.bound.start[i]);
		}, this);
	},

	detach: function(){
		this.handles.each(function(handle, i){
			handle.removeEvent('mousedown', this.bound.start[i]);
		}, this);
	},

	start: function(event, el){
		this.active = el;
		this.coordinates = this.list.getCoordinates();
		if (this.options.ghost){
			var position = el.getPosition();
			this.offset = event.page.y - position.y;
			this.trash = new Element('div').inject(document.body);
			this.ghost = el.clone().inject(this.trash).setStyles({
				'position': 'absolute',
				'left': position.x,
				'top': event.page.y - this.offset
			});
			document.addListener('mousemove', this.bound.moveGhost);
			this.fireEvent('onDragStart', [el, this.ghost]);
		}
		document.addListener('mousemove', this.bound.move);
		document.addListener('mouseup', this.bound.end);
		this.fireEvent('onStart', el);
		event.stop();
	},

	moveGhost: function(event){
		var value = event.page.y - this.offset;
		value = value.limit(this.coordinates.top, this.coordinates.bottom - this.ghost.offsetHeight);
		this.ghost.setStyle('top', value);
		event.stop();
	},

	move: function(event){
		var now = event.page.y;
		this.previous = this.previous || now;
		var up = ((this.previous - now) > 0);
		var prev = this.active.getPrevious();
		var next = this.active.getNext();
		if (prev && up && now < prev.getCoordinates().bottom) this.active.injectBefore(prev);
		if (next && !up && now > next.getCoordinates().top) this.active.injectAfter(next);
		this.previous = now;
	},

	serialize: function(converter){
		return this.list.getChildren().map(converter || function(el){
			return this.elements.indexOf(el);
		}, this);
	},

	end: function(){
		this.previous = null;
		document.removeListener('mousemove', this.bound.move);
		document.removeListener('mouseup', this.bound.end);
		if (this.options.ghost){
			document.removeListener('mousemove', this.bound.moveGhost);
			this.fireEvent('onDragComplete', [this.active, this.ghost]);
		}
		this.fireEvent('onComplete', this.active);
	}

});

Sortables.implement(new Events, new Options);



var Tips = new Class({

	options: {
		onShow: function(tip){
			tip.setStyle('visibility', 'visible');
		},
		onHide: function(tip){
			tip.setStyle('visibility', 'hidden');
		},
		maxTitleChars: 30,
		showDelay: 100,
		hideDelay: 100,
		className: 'tool',
		offsets: {'x': 16, 'y': 16},
		fixed: false
	},

	initialize: function(elements, options){
		this.setOptions(options);
		this.toolTip = new Element('div', {
			'class': this.options.className + '-tip',
			'styles': {
				'position': 'absolute',
				'top': '0',
				'left': '0',
				'visibility': 'hidden'
			}
		}).inject(document.body);
		this.wrapper = new Element('div').inject(this.toolTip);
		$$(elements).each(this.build, this);
		if (this.options.initialize) this.options.initialize.call(this);
	},

	build: function(el){
		el.$tmp.myTitle = (el.href && el.getTag() == 'a') ? el.href.replace('http://', '') : (el.rel || false);
		if (el.title){
			var dual = el.title.split('::');
			if (dual.length > 1){
				el.$tmp.myTitle = dual[0].trim();
				el.$tmp.myText = dual[1].trim();
			} else {
				el.$tmp.myText = el.title;
			}
			el.removeAttribute('title');
		} else {
			el.$tmp.myText = false;
		}
		if (el.$tmp.myTitle && el.$tmp.myTitle.length > this.options.maxTitleChars) el.$tmp.myTitle = el.$tmp.myTitle.substr(0, this.options.maxTitleChars - 1) + "&hellip;";
		el.addEvent('mouseenter', function(event){
			this.start(el);
			if (!this.options.fixed) this.locate(event);
			else this.position(el);
		}.bind(this));
		if (!this.options.fixed) el.addEvent('mousemove', this.locate.bindWithEvent(this));
		var end = this.end.bind(this);
		el.addEvent('mouseleave', end);
		el.addEvent('trash', end);
	},

	start: function(el){
		this.wrapper.empty();
		if (el.$tmp.myTitle){
			this.title = new Element('span').inject(new Element('div', {'class': this.options.className + '-title'}).inject(this.wrapper)).setHTML(el.$tmp.myTitle);
		}
		if (el.$tmp.myText){
			this.text = new Element('span').inject(new Element('div', {'class': this.options.className + '-text'}).inject(this.wrapper)).setHTML(el.$tmp.myText);
		}
		$clear(this.timer);
		this.timer = this.show.delay(this.options.showDelay, this);
	},

	end: function(event){
		$clear(this.timer);
		this.timer = this.hide.delay(this.options.hideDelay, this);
	},

	position: function(element){
		var pos = element.getPosition();
		this.toolTip.setStyles({
			'left': pos.x + this.options.offsets.x,
			'top': pos.y + this.options.offsets.y
		});
	},

	locate: function(event){
		var win = {'x': window.getWidth(), 'y': window.getHeight()};
		var scroll = {'x': window.getScrollLeft(), 'y': window.getScrollTop()};
		var tip = {'x': this.toolTip.offsetWidth, 'y': this.toolTip.offsetHeight};
		var prop = {'x': 'left', 'y': 'top'};
		for (var z in prop){
			var pos = event.page[z] + this.options.offsets[z];
			if ((pos + tip[z] - scroll[z]) > win[z]) pos = event.page[z] - this.options.offsets[z] - tip[z];
			this.toolTip.setStyle(prop[z], pos);
		};
	},

	show: function(){
		if (this.options.timeout) this.timer = this.hide.delay(this.options.timeout, this);
		this.fireEvent('onShow', [this.toolTip]);
	},

	hide: function(){
		this.fireEvent('onHide', [this.toolTip]);
	}

});

Tips.implement(new Events, new Options);



var Group = new Class({

	initialize: function(){
		this.instances = $A(arguments);
		this.events = {};
		this.checker = {};
	},

	/*
	Property: addEvent
		adds an event to the stack of events of the Class instances.

	Arguments:
		type - string; the event name (e.g. 'onComplete')
		fn - function to execute when all instances fired this event
	*/

	addEvent: function(type, fn){
		this.checker[type] = this.checker[type] || {};
		this.events[type] = this.events[type] || [];
		if (this.events[type].contains(fn)) return false;
		else this.events[type].push(fn);
		this.instances.each(function(instance, i){
			instance.addEvent(type, this.check.bind(this, [type, instance, i]));
		}, this);
		return this;
	},

	check: function(type, instance, i){
		this.checker[type][i] = true;
		var every = this.instances.every(function(current, j){
			return this.checker[type][j] || false;
		}, this);
		if (!every) return;
		this.checker[type] = {};
		this.events[type].each(function(event){
			event.call(this, this.instances, instance);
		}, this);
	}

});


var Accordion = Fx.Elements.extend({

	options: {
		onActive: Class.empty,
		onBackground: Class.empty,
		display: 0,
		show: false,
		height: true,
		width: false,
		opacity: true,
		fixedHeight: false,
		fixedWidth: false,
		wait: false,
		alwaysHide: false
	},

	initialize: function(){
		var options, togglers, elements, container;
		$each(arguments, function(argument, i){
			switch($type(argument)){
				case 'object': options = argument; break;
				case 'element': container = $(argument); break;
				default:
					var temp = $$(argument);
					if (!togglers) togglers = temp;
					else elements = temp;
			}
		});
		this.togglers = togglers || [];
		this.elements = elements || [];
		this.container = $(container);
		this.setOptions(options);
		this.previous = -1;
		if (this.options.alwaysHide) this.options.wait = true;
		if ($chk(this.options.show)){
			this.options.display = false;
			this.previous = this.options.show;
		}
		if (this.options.start){
			this.options.display = false;
			this.options.show = false;
		}
		this.effects = {};
		if (this.options.opacity) this.effects.opacity = 'fullOpacity';
		if (this.options.width) this.effects.width = this.options.fixedWidth ? 'fullWidth' : 'offsetWidth';
		if (this.options.height) this.effects.height = this.options.fixedHeight ? 'fullHeight' : 'scrollHeight';
		for (var i = 0, l = this.togglers.length; i < l; i++) this.addSection(this.togglers[i], this.elements[i]);
		this.elements.each(function(el, i){
			if (this.options.show === i){
				this.fireEvent('onActive', [this.togglers[i], el]);
			} else {
				for (var fx in this.effects) el.setStyle(fx, 0);
			}
		}, this);
		this.parent(this.elements);
		if ($chk(this.options.display)) this.display(this.options.display);
	},

	/*
	Property: addSection
		Dynamically adds a new section into the accordion at the specified position.

	Arguments:
		toggler - (dom element) the element that toggles the accordion section open.
		element - (dom element) the element that stretches open when the toggler is clicked.
		pos - (integer) the index where these objects are to be inserted within the accordion.
	*/

	addSection: function(toggler, element, pos){
		toggler = $(toggler);
		element = $(element);
		var test = this.togglers.contains(toggler);
		var len = this.togglers.length;
		this.togglers.include(toggler);
		this.elements.include(element);
		if (len && (!test || pos)){
			pos = $pick(pos, len - 1);
			toggler.injectBefore(this.togglers[pos]);
			element.injectAfter(toggler);
		} else if (this.container && !test){
			toggler.inject(this.container);
			element.inject(this.container);
		}
		var idx = this.togglers.indexOf(toggler);
		toggler.addEvent('click', this.display.bind(this, idx));
		if (this.options.height) element.setStyles({'padding-top': 0, 'border-top': 'none', 'padding-bottom': 0, 'border-bottom': 'none'});
		if (this.options.width) element.setStyles({'padding-left': 0, 'border-left': 'none', 'padding-right': 0, 'border-right': 'none'});
		element.fullOpacity = 1;
		if (this.options.fixedWidth) element.fullWidth = this.options.fixedWidth;
		if (this.options.fixedHeight) element.fullHeight = this.options.fixedHeight;
		element.setStyle('overflow', 'hidden');
		if (!test){
			for (var fx in this.effects) element.setStyle(fx, 0);
		}
		return this;
	},

	/*
	Property: display
		Shows a specific section and hides all others. Useful when triggering an accordion from outside.

	Arguments:
		index - integer, the index of the item to show, or the actual element to show.
	*/

	display: function(index){
		index = ($type(index) == 'element') ? this.elements.indexOf(index) : index;
		if ((this.timer && this.options.wait) || (index === this.previous && !this.options.alwaysHide)) return this;
		this.previous = index;
		var obj = {};
		this.elements.each(function(el, i){
			obj[i] = {};
			var hide = (i != index) || (this.options.alwaysHide && (el.offsetHeight > 0));
			this.fireEvent(hide ? 'onBackground' : 'onActive', [this.togglers[i], el]);
			for (var fx in this.effects) obj[i][fx] = hide ? 0 : el[this.effects[fx]];
		}, this);
		return this.start(obj);
	},

	showThisHideOpen: function(index){return this.display(index);}

});

Fx.Accordion = Accordion;


var Ticker = new Class({
	setOptions: function(options) {
		this.options = Object.extend({
			speed: 1500,
			delay: 5000,
			direction: 'vertical',
			onComplete: Class.empty,
			onStart: Class.empty
		}, options || {});
	},
	initialize: function(el,options){
		this.setOptions(options);
		this.el = $(el);
		this.items = this.el.getElements('li');
		var w = 0;
		var h = 0;
		if(this.options.direction.toLowerCase()=='horizontal') {
			h = this.el.getSize().size.y;
			this.items.each(function(li,index) {
				w += li.getSize().size.x;
			});
		} else {
			w = this.el.getSize().size.x;
			this.items.each(function(li,index) {
				h += li.getSize().size.y;
			});
		}
		this.el.setStyles({
			position: 'absolute',
			top: 0,
			left: 0,
			width: w,
			height: h
		});
		this.fx = new Fx.Styles(this.el,{duration:this.options.speed,onComplete:function() {
			var i = (this.current==0)?this.items.length:this.current;
			this.items[i-1].injectInside(this.el);
			this.el.setStyles({
				left:0,
				top:0
			});
		}.bind(this)});
		this.current = 0;
		this.next();
	},
	next: function() {
		this.current++;
		if (this.current >= this.items.length) this.current = 0;
		var pos = this.items[this.current];
		this.fx.start({
			top: -pos.offsetTop,
			left: -pos.offsetLeft
		});
		this.next.bind(this).delay(this.options.delay+this.options.speed);
	}
	});