var Prototype = {
	Version : "1.6.1",
	Browser : function() {
		var ua = navigator.userAgent;
		var isOpera = Object.prototype.toString.call(window.opera) == "[object Opera]";
		return {
			IE : !!window.attachEvent && !isOpera,
			Opera : isOpera,
			WebKit : ua.indexOf("AppleWebKit/") > -1,
			Gecko : ua.indexOf("Gecko") > -1 && ua.indexOf("KHTML") === -1,
			MobileSafari : /Apple.*Mobile.*Safari/.test(ua)
		}
	}(),
	BrowserFeatures : {
		XPath : !!document.evaluate,
		SelectorsAPI : !!document.querySelector,
		ElementExtensions : function() {
			var constructor = window.Element || window.HTMLElement;
			return !!(constructor && constructor.prototype)
		}(),
		SpecificElementExtensions : function() {
			if (typeof window.HTMLDivElement !== "undefined")
				return true;
			var div = document.createElement("div");
			var form = document.createElement("form");
			var isSupported = false;
			if (div["__proto__"] && div["__proto__"] !== form["__proto__"])
				isSupported = true;
			div = form = null;
			return isSupported
		}()
	},
	ScriptFragment : "<script[^>]*>([\\S\\s]*?)<\/script>",
	JSONFilter : /^\/\*-secure-([\s\S]*)\*\/\s*$/,
	emptyFunction : function() {
	},
	K : function(x) {
		return x
	}
};
if (Prototype.Browser.MobileSafari)
	Prototype.BrowserFeatures.SpecificElementExtensions = false;
var Abstract = {};
var Try = {
	these : function() {
		var returnValue;
		for ( var i = 0, length = arguments.length; i < length; i++) {
			var lambda = arguments[i];
			try {
				returnValue = lambda();
				break
			} catch (e) {
			}
		}
		return returnValue
	}
};
var Class = function() {
	function subclass() {
	}
	function create() {
		var parent = null, properties = $A(arguments);
		if (Object.isFunction(properties[0]))
			parent = properties.shift();
		function klass() {
			this.initialize.apply(this, arguments)
		}
		Object.extend(klass, Class.Methods);
		klass.superclass = parent;
		klass.subclasses = [];
		if (parent) {
			subclass.prototype = parent.prototype;
			klass.prototype = new subclass;
			parent.subclasses.push(klass)
		}
		for ( var i = 0; i < properties.length; i++)
			klass.addMethods(properties[i]);
		if (!klass.prototype.initialize)
			klass.prototype.initialize = Prototype.emptyFunction;
		klass.prototype.constructor = klass;
		return klass
	}
	function addMethods(source) {
		var ancestor = this.superclass && this.superclass.prototype;
		var properties = Object.keys(source);
		if (!Object.keys( {
			toString : true
		}).length) {
			if (source.toString != Object.prototype.toString)
				properties.push("toString");
			if (source.valueOf != Object.prototype.valueOf)
				properties.push("valueOf")
		}
		for ( var i = 0, length = properties.length; i < length; i++) {
			var property = properties[i], value = source[property];
			if (ancestor && Object.isFunction(value)
					&& value.argumentNames().first() == "$super") {
				var method = value;
				value = function(m) {
					return function() {
						return ancestor[m].apply(this, arguments)
					}
				}(property).wrap(method);
				value.valueOf = method.valueOf.bind(method);
				value.toString = method.toString.bind(method)
			}
			this.prototype[property] = value
		}
		return this
	}
	return {
		create : create,
		Methods : {
			addMethods : addMethods
		}
	}
}();
(function() {
	var _toString = Object.prototype.toString;
	function extend(destination, source) {
		for ( var property in source)
			destination[property] = source[property];
		return destination
	}
	function inspect(object) {
		try {
			if (isUndefined(object))
				return "undefined";
			if (object === null)
				return "null";
			return object.inspect ? object.inspect() : String(object)
		} catch (e) {
			if (e instanceof RangeError)
				return "...";
			throw e;
		}
	}
	function toJSON(object) {
		var type = typeof object;
		switch (type) {
		case "undefined":
		case "function":
		case "unknown":
			return;
		case "boolean":
			return object.toString()
		}
		if (object === null)
			return "null";
		if (object.toJSON)
			return object.toJSON();
		if (isElement(object))
			return;
		var results = [];
		for ( var property in object) {
			var value = toJSON(object[property]);
			if (!isUndefined(value))
				results.push(property.toJSON() + ": " + value)
		}
		return "{" + results.join(", ") + "}"
	}
	function toQueryString(object) {
		return $H(object).toQueryString()
	}
	function toHTML(object) {
		return object && object.toHTML ? object.toHTML() : String
				.interpret(object)
	}
	function keys(object) {
		var results = [];
		for ( var property in object)
			results.push(property);
		return results
	}
	function values(object) {
		var results = [];
		for ( var property in object)
			results.push(object[property]);
		return results
	}
	function clone(object) {
		return extend( {}, object)
	}
	function isElement(object) {
		return !!(object && object.nodeType == 1)
	}
	function isArray(object) {
		return _toString.call(object) == "[object Array]"
	}
	function isHash(object) {
		return object instanceof Hash
	}
	function isFunction(object) {
		return typeof object === "function"
	}
	function isString(object) {
		return _toString.call(object) == "[object String]"
	}
	function isNumber(object) {
		return _toString.call(object) == "[object Number]"
	}
	function isUndefined(object) {
		return typeof object === "undefined"
	}
	extend(Object, {
		extend : extend,
		inspect : inspect,
		toJSON : toJSON,
		toQueryString : toQueryString,
		toHTML : toHTML,
		keys : keys,
		values : values,
		clone : clone,
		isElement : isElement,
		isArray : isArray,
		isHash : isHash,
		isFunction : isFunction,
		isString : isString,
		isNumber : isNumber,
		isUndefined : isUndefined
	})
})();
Object.extend(Function.prototype,
		function() {
			var slice = Array.prototype.slice;
			function update(array, args) {
				var arrayLength = array.length, length = args.length;
				while (length--)
					array[arrayLength + length] = args[length];
				return array
			}
			function merge(array, args) {
				array = slice.call(array, 0);
				return update(array, args)
			}
			function argumentNames() {
				var names = this.toString().match(
						/^[\s\(]*function[^(]*\(([^)]*)\)/)[1].replace(
						/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, "").replace(
						/\s+/g, "").split(",");
				return names.length == 1 && !names[0] ? [] : names
			}
			function bind(context) {
				if (arguments.length < 2 && Object.isUndefined(arguments[0]))
					return this;
				var __method = this, args = slice.call(arguments, 1);
				return function() {
					var a = merge(args, arguments);
					return __method.apply(context, a)
				}
			}
			function bindAsEventListener(context) {
				var __method = this, args = slice.call(arguments, 1);
				return function(event) {
					var a = update( [ event || window.event ], args);
					return __method.apply(context, a)
				}
			}
			function curry() {
				if (!arguments.length)
					return this;
				var __method = this, args = slice.call(arguments, 0);
				return function() {
					var a = merge(args, arguments);
					return __method.apply(this, a)
				}
			}
			function delay(timeout) {
				var __method = this, args = slice.call(arguments, 1);
				timeout = timeout * 1E3;
				return window.setTimeout(function() {
					return __method.apply(__method, args)
				}, timeout)
			}
			function defer() {
				var args = update( [ 0.01 ], arguments);
				return this.delay.apply(this, args)
			}
			function wrap(wrapper) {
				var __method = this;
				return function() {
					var a = update( [ __method.bind(this) ], arguments);
					return wrapper.apply(this, a)
				}
			}
			function methodize() {
				if (this._methodized)
					return this._methodized;
				var __method = this;
				return this._methodized = function() {
					var a = update( [ this ], arguments);
					return __method.apply(null, a)
				}
			}
			return {
				argumentNames : argumentNames,
				bind : bind,
				bindAsEventListener : bindAsEventListener,
				curry : curry,
				delay : delay,
				defer : defer,
				wrap : wrap,
				methodize : methodize
			}
		}());
Date.prototype.toJSON = function() {
	return '"' + this.getUTCFullYear() + "-"
			+ (this.getUTCMonth() + 1).toPaddedString(2) + "-"
			+ this.getUTCDate().toPaddedString(2) + "T"
			+ this.getUTCHours().toPaddedString(2) + ":"
			+ this.getUTCMinutes().toPaddedString(2) + ":"
			+ this.getUTCSeconds().toPaddedString(2) + 'Z"'
};
RegExp.prototype.match = RegExp.prototype.test;
RegExp.escape = function(str) {
	return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, "\\$1")
};
var PeriodicalExecuter = Class.create( {
	initialize : function(callback, frequency) {
		this.callback = callback;
		this.frequency = frequency;
		this.currentlyExecuting = false;
		this.registerCallback()
	},
	registerCallback : function() {
		this.timer = setInterval(this.onTimerEvent.bind(this),
				this.frequency * 1E3)
	},
	execute : function() {
		this.callback(this)
	},
	stop : function() {
		if (!this.timer)
			return;
		clearInterval(this.timer);
		this.timer = null
	},
	onTimerEvent : function() {
		if (!this.currentlyExecuting)
			try {
				this.currentlyExecuting = true;
				this.execute();
				this.currentlyExecuting = false
			} catch (e) {
				this.currentlyExecuting = false;
				throw e;
			}
	}
});
Object.extend(String, {
	interpret : function(value) {
		return value == null ? "" : String(value)
	},
	specialChar : {
		"\u0008" : "\\b",
		"\t" : "\\t",
		"\n" : "\\n",
		"\u000c" : "\\f",
		"\r" : "\\r",
		"\\" : "\\\\"
	}
});
Object.extend(String.prototype, function() {
	function prepareReplacement(replacement) {
		if (Object.isFunction(replacement))
			return replacement;
		var template = new Template(replacement);
		return function(match) {
			return template.evaluate(match)
		}
	}
	function gsub(pattern, replacement) {
		var result = "", source = this, match;
		replacement = prepareReplacement(replacement);
		if (Object.isString(pattern))
			pattern = RegExp.escape(pattern);
		if (!(pattern.length || pattern.source)) {
			replacement = replacement("");
			return replacement + source.split("").join(replacement)
					+ replacement
		}
		while (source.length > 0)
			if (match = source.match(pattern)) {
				result += source.slice(0, match.index);
				result += String.interpret(replacement(match));
				source = source.slice(match.index + match[0].length)
			} else
				result += source, source = "";
		return result
	}
	function sub(pattern, replacement, count) {
		replacement = prepareReplacement(replacement);
		count = Object.isUndefined(count) ? 1 : count;
		return this.gsub(pattern, function(match) {
			if (--count < 0)
				return match[0];
			return replacement(match)
		})
	}
	function scan(pattern, iterator) {
		this.gsub(pattern, iterator);
		return String(this)
	}
	function truncate(length, truncation) {
		length = length || 30;
		truncation = Object.isUndefined(truncation) ? "..." : truncation;
		return this.length > length ? this.slice(0, length - truncation.length)
				+ truncation : String(this)
	}
	function strip() {
		return this.replace(/^\s+/, "").replace(/\s+$/, "")
	}
	function stripTags() {
		return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, "")
	}
	function stripScripts() {
		return this.replace(new RegExp(Prototype.ScriptFragment, "img"), "")
	}
	function extractScripts() {
		var matchAll = new RegExp(Prototype.ScriptFragment, "img");
		var matchOne = new RegExp(Prototype.ScriptFragment, "im");
		return (this.match(matchAll) || []).map(function(scriptTag) {
			return (scriptTag.match(matchOne) || [ "", "" ])[1]
		})
	}
	function evalScripts() {
		return this.extractScripts().map(function(script) {
			return eval(script)
		})
	}
	function escapeHTML() {
		return this.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g,
				"&gt;")
	}
	function unescapeHTML() {
		return this.stripTags().replace(/&lt;/g, "<").replace(/&gt;/g, ">")
				.replace(/&amp;/g, "&")
	}
	function toQueryParams(separator) {
		var match = this.strip().match(/([^?#]*)(#.*)?$/);
		if (!match)
			return {};
		return match[1].split(separator || "&").inject( {},
				function(hash, pair) {
					if ((pair = pair.split("="))[0]) {
						var key = decodeURIComponent(pair.shift());
						var value = pair.length > 1 ? pair.join("=") : pair[0];
						if (value != undefined)
							value = decodeURIComponent(value);
						if (key in hash) {
							if (!Object.isArray(hash[key]))
								hash[key] = [ hash[key] ];
							hash[key].push(value)
						} else
							hash[key] = value
					}
					return hash
				})
	}
	function toArray() {
		return this.split("")
	}
	function succ() {
		return this.slice(0, this.length - 1)
				+ String.fromCharCode(this.charCodeAt(this.length - 1) + 1)
	}
	function times(count) {
		return count < 1 ? "" : (new Array(count + 1)).join(this)
	}
	function camelize() {
		var parts = this.split("-"), len = parts.length;
		if (len == 1)
			return parts[0];
		var camelized = this.charAt(0) == "-" ? parts[0].charAt(0)
				.toUpperCase()
				+ parts[0].substring(1) : parts[0];
		for ( var i = 1; i < len; i++)
			camelized += parts[i].charAt(0).toUpperCase()
					+ parts[i].substring(1);
		return camelized
	}
	function capitalize() {
		return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase()
	}
	function underscore() {
		return this.replace(/::/g, "/").replace(/([A-Z]+)([A-Z][a-z])/g,
				"$1_$2").replace(/([a-z\d])([A-Z])/g, "$1_$2").replace(/-/g,
				"_").toLowerCase()
	}
	function dasherize() {
		return this.replace(/_/g, "-")
	}
	function inspect(useDoubleQuotes) {
		var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
			if (character in String.specialChar)
				return String.specialChar[character];
			return "\\u00" + character.charCodeAt().toPaddedString(2, 16)
		});
		if (useDoubleQuotes)
			return '"' + escapedString.replace(/"/g, '\\"') + '"';
		return "'" + escapedString.replace(/'/g, "\\'") + "'"
	}
	function toJSON() {
		return this.inspect(true)
	}
	function unfilterJSON(filter) {
		return this.replace(filter || Prototype.JSONFilter, "$1")
	}
	function isJSON() {
		var str = this;
		if (str.blank())
			return false;
		str = this.replace(/\\./g, "@").replace(/"[^"\\\n\r]*"/g, "");
		return /^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/.test(str)
	}
	function evalJSON(sanitize) {
		var json = this.unfilterJSON();
		try {
			if (!sanitize || json.isJSON())
				return eval("(" + json + ")")
		} catch (e) {
		}
		throw new SyntaxError("Badly formed JSON string: " + this.inspect());
	}
	function include(pattern) {
		return this.indexOf(pattern) > -1
	}
	function startsWith(pattern) {
		return this.indexOf(pattern) === 0
	}
	function endsWith(pattern) {
		var d = this.length - pattern.length;
		return d >= 0 && this.lastIndexOf(pattern) === d
	}
	function empty() {
		return this == ""
	}
	function blank() {
		return /^\s*$/.test(this)
	}
	function interpolate(object, pattern) {
		return (new Template(this, pattern)).evaluate(object)
	}
	return {
		gsub : gsub,
		sub : sub,
		scan : scan,
		truncate : truncate,
		strip : String.prototype.trim ? String.prototype.trim : strip,
		stripTags : stripTags,
		stripScripts : stripScripts,
		extractScripts : extractScripts,
		evalScripts : evalScripts,
		escapeHTML : escapeHTML,
		unescapeHTML : unescapeHTML,
		toQueryParams : toQueryParams,
		parseQuery : toQueryParams,
		toArray : toArray,
		succ : succ,
		times : times,
		camelize : camelize,
		capitalize : capitalize,
		underscore : underscore,
		dasherize : dasherize,
		inspect : inspect,
		toJSON : toJSON,
		unfilterJSON : unfilterJSON,
		isJSON : isJSON,
		evalJSON : evalJSON,
		include : include,
		startsWith : startsWith,
		endsWith : endsWith,
		empty : empty,
		blank : blank,
		interpolate : interpolate
	}
}());
var Template = Class.create( {
	initialize : function(template, pattern) {
		this.template = template.toString();
		this.pattern = pattern || Template.Pattern
	},
	evaluate : function(object) {
		if (object && Object.isFunction(object.toTemplateReplacements))
			object = object.toTemplateReplacements();
		return this.template.gsub(this.pattern, function(match) {
			if (object == null)
				return match[1] + "";
			var before = match[1] || "";
			if (before == "\\")
				return match[2];
			var ctx = object, expr = match[3];
			var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
			match = pattern.exec(expr);
			if (match == null)
				return before;
			while (match != null) {
				var comp = match[1].startsWith("[") ? match[2].replace(
						/\\\\]/g, "]") : match[1];
				ctx = ctx[comp];
				if (null == ctx || "" == match[3])
					break;
				expr = expr.substring("[" == match[3] ? match[1].length
						: match[0].length);
				match = pattern.exec(expr)
			}
			return before + String.interpret(ctx)
		})
	}
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
var $break = {};
var Enumerable = function() {
	function each(iterator, context) {
		var index = 0;
		try {
			this._each(function(value) {
				iterator.call(context, value, index++)
			})
		} catch (e) {
			if (e != $break)
				throw e;
		}
		return this
	}
	function eachSlice(number, iterator, context) {
		var index = -number, slices = [], array = this.toArray();
		if (number < 1)
			return array;
		while ((index += number) < array.length)
			slices.push(array.slice(index, index + number));
		return slices.collect(iterator, context)
	}
	function all(iterator, context) {
		iterator = iterator || Prototype.K;
		var result = true;
		this.each(function(value, index) {
			result = result && !!iterator.call(context, value, index);
			if (!result)
				throw $break;
		});
		return result
	}
	function any(iterator, context) {
		iterator = iterator || Prototype.K;
		var result = false;
		this.each(function(value, index) {
			if (result = !!iterator.call(context, value, index))
				throw $break;
		});
		return result
	}
	function collect(iterator, context) {
		iterator = iterator || Prototype.K;
		var results = [];
		this.each(function(value, index) {
			results.push(iterator.call(context, value, index))
		});
		return results
	}
	function detect(iterator, context) {
		var result;
		this.each(function(value, index) {
			if (iterator.call(context, value, index)) {
				result = value;
				throw $break;
			}
		});
		return result
	}
	function findAll(iterator, context) {
		var results = [];
		this.each(function(value, index) {
			if (iterator.call(context, value, index))
				results.push(value)
		});
		return results
	}
	function grep(filter, iterator, context) {
		iterator = iterator || Prototype.K;
		var results = [];
		if (Object.isString(filter))
			filter = new RegExp(RegExp.escape(filter));
		this.each(function(value, index) {
			if (filter.match(value))
				results.push(iterator.call(context, value, index))
		});
		return results
	}
	function include(object) {
		if (Object.isFunction(this.indexOf))
			if (this.indexOf(object) != -1)
				return true;
		var found = false;
		this.each(function(value) {
			if (value == object) {
				found = true;
				throw $break;
			}
		});
		return found
	}
	function inGroupsOf(number, fillWith) {
		fillWith = Object.isUndefined(fillWith) ? null : fillWith;
		return this.eachSlice(number, function(slice) {
			while (slice.length < number)
				slice.push(fillWith);
			return slice
		})
	}
	function inject(memo, iterator, context) {
		this.each(function(value, index) {
			memo = iterator.call(context, memo, value, index)
		});
		return memo
	}
	function invoke(method) {
		var args = $A(arguments).slice(1);
		return this.map(function(value) {
			return value[method].apply(value, args)
		})
	}
	function max(iterator, context) {
		iterator = iterator || Prototype.K;
		var result;
		this.each(function(value, index) {
			value = iterator.call(context, value, index);
			if (result == null || value >= result)
				result = value
		});
		return result
	}
	function min(iterator, context) {
		iterator = iterator || Prototype.K;
		var result;
		this.each(function(value, index) {
			value = iterator.call(context, value, index);
			if (result == null || value < result)
				result = value
		});
		return result
	}
	function partition(iterator, context) {
		iterator = iterator || Prototype.K;
		var trues = [], falses = [];
		this.each(function(value, index) {
			(iterator.call(context, value, index) ? trues : falses).push(value)
		});
		return [ trues, falses ]
	}
	function pluck(property) {
		var results = [];
		this.each(function(value) {
			results.push(value[property])
		});
		return results
	}
	function reject(iterator, context) {
		var results = [];
		this.each(function(value, index) {
			if (!iterator.call(context, value, index))
				results.push(value)
		});
		return results
	}
	function sortBy(iterator, context) {
		return this.map(function(value, index) {
			return {
				value : value,
				criteria : iterator.call(context, value, index)
			}
		}).sort(function(left, right) {
			var a = left.criteria, b = right.criteria;
			return a < b ? -1 : a > b ? 1 : 0
		}).pluck("value")
	}
	function toArray() {
		return this.map()
	}
	function zip() {
		var iterator = Prototype.K, args = $A(arguments);
		if (Object.isFunction(args.last()))
			iterator = args.pop();
		var collections = [ this ].concat(args).map($A);
		return this.map(function(value, index) {
			return iterator(collections.pluck(index))
		})
	}
	function size() {
		return this.toArray().length
	}
	function inspect() {
		return "#<Enumerable:" + this.toArray().inspect() + ">"
	}
	return {
		each : each,
		eachSlice : eachSlice,
		all : all,
		every : all,
		any : any,
		some : any,
		collect : collect,
		map : collect,
		detect : detect,
		findAll : findAll,
		select : findAll,
		filter : findAll,
		grep : grep,
		include : include,
		member : include,
		inGroupsOf : inGroupsOf,
		inject : inject,
		invoke : invoke,
		max : max,
		min : min,
		partition : partition,
		pluck : pluck,
		reject : reject,
		sortBy : sortBy,
		toArray : toArray,
		entries : toArray,
		zip : zip,
		size : size,
		inspect : inspect,
		find : detect
	}
}();
function $A(iterable) {
	if (!iterable)
		return [];
	if ("toArray" in Object(iterable))
		return iterable.toArray();
	var length = iterable.length || 0, results = new Array(length);
	while (length--)
		results[length] = iterable[length];
	return results
}
function $w(string) {
	if (!Object.isString(string))
		return [];
	string = string.strip();
	return string ? string.split(/\s+/) : []
}
Array.from = $A;
(function() {
	var arrayProto = Array.prototype, slice = arrayProto.slice, _each = arrayProto.forEach;
	function each(iterator) {
		for ( var i = 0, length = this.length; i < length; i++)
			iterator(this[i])
	}
	if (!_each)
		_each = each;
	function clear() {
		this.length = 0;
		return this
	}
	function first() {
		return this[0]
	}
	function last() {
		return this[this.length - 1]
	}
	function compact() {
		return this.select(function(value) {
			return value != null
		})
	}
	function flatten() {
		return this.inject( [], function(array, value) {
			if (Object.isArray(value))
				return array.concat(value.flatten());
			array.push(value);
			return array
		})
	}
	function without() {
		var values = slice.call(arguments, 0);
		return this.select(function(value) {
			return !values.include(value)
		})
	}
	function reverse(inline) {
		return (inline !== false ? this : this.toArray())._reverse()
	}
	function uniq(sorted) {
		return this.inject( [],
				function(array, value, index) {
					if (0 == index
							|| (sorted ? array.last() != value : !array
									.include(value)))
						array.push(value);
					return array
				})
	}
	function intersect(array) {
		return this.uniq().findAll(function(item) {
			return array.detect(function(value) {
				return item === value
			})
		})
	}
	function clone() {
		return slice.call(this, 0)
	}
	function size() {
		return this.length
	}
	function inspect() {
		return "[" + this.map(Object.inspect).join(", ") + "]"
	}
	function toJSON() {
		var results = [];
		this.each(function(object) {
			var value = Object.toJSON(object);
			if (!Object.isUndefined(value))
				results.push(value)
		});
		return "[" + results.join(", ") + "]"
	}
	function indexOf(item, i) {
		i || (i = 0);
		var length = this.length;
		if (i < 0)
			i = length + i;
		for (; i < length; i++)
			if (this[i] === item)
				return i;
		return -1
	}
	function lastIndexOf(item, i) {
		i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
		var n = this.slice(0, i).reverse().indexOf(item);
		return n < 0 ? n : i - n - 1
	}
	function concat() {
		var array = slice.call(this, 0), item;
		for ( var i = 0, length = arguments.length; i < length; i++) {
			item = arguments[i];
			if (Object.isArray(item) && !("callee" in item))
				for ( var j = 0, arrayLength = item.length; j < arrayLength; j++)
					array.push(item[j]);
			else
				array.push(item)
		}
		return array
	}
	Object.extend(arrayProto, Enumerable);
	if (!arrayProto._reverse)
		arrayProto._reverse = arrayProto.reverse;
	Object.extend(arrayProto, {
		_each : _each,
		clear : clear,
		first : first,
		last : last,
		compact : compact,
		flatten : flatten,
		without : without,
		reverse : reverse,
		uniq : uniq,
		intersect : intersect,
		clone : clone,
		toArray : clone,
		size : size,
		inspect : inspect,
		toJSON : toJSON
	});
	var CONCAT_ARGUMENTS_BUGGY = function() {
		return [].concat(arguments)[0][0] !== 1
	}(1, 2);
	if (CONCAT_ARGUMENTS_BUGGY)
		arrayProto.concat = concat;
	if (!arrayProto.indexOf)
		arrayProto.indexOf = indexOf;
	if (!arrayProto.lastIndexOf)
		arrayProto.lastIndexOf = lastIndexOf
})();
function $H(object) {
	return new Hash(object)
}
var Hash = Class.create(Enumerable, function() {
	function initialize(object) {
		this._object = Object.isHash(object) ? object.toObject() : Object
				.clone(object)
	}
	function _each(iterator) {
		for ( var key in this._object) {
			var value = this._object[key], pair = [ key, value ];
			pair.key = key;
			pair.value = value;
			iterator(pair)
		}
	}
	function set(key, value) {
		return this._object[key] = value
	}
	function get(key) {
		if (this._object[key] !== Object.prototype[key])
			return this._object[key]
	}
	function unset(key) {
		var value = this._object[key];
		delete this._object[key];
		return value
	}
	function toObject() {
		return Object.clone(this._object)
	}
	function keys() {
		return this.pluck("key")
	}
	function values() {
		return this.pluck("value")
	}
	function index(value) {
		var match = this.detect(function(pair) {
			return pair.value === value
		});
		return match && match.key
	}
	function merge(object) {
		return this.clone().update(object)
	}
	function update(object) {
		return (new Hash(object)).inject(this, function(result, pair) {
			result.set(pair.key, pair.value);
			return result
		})
	}
	function toQueryPair(key, value) {
		if (Object.isUndefined(value))
			return key;
		return key + "=" + encodeURIComponent(String.interpret(value))
	}
	function toQueryString() {
		return this.inject( [], function(results, pair) {
			var key = encodeURIComponent(pair.key), values = pair.value;
			if (values && typeof values == "object") {
				if (Object.isArray(values))
					return results.concat(values.map(toQueryPair.curry(key)))
			} else
				results.push(toQueryPair(key, values));
			return results
		}).join("&")
	}
	function inspect() {
		return "#<Hash:{" + this.map(function(pair) {
			return pair.map(Object.inspect).join(": ")
		}).join(", ") + "}>"
	}
	function toJSON() {
		return Object.toJSON(this.toObject())
	}
	function clone() {
		return new Hash(this)
	}
	return {
		initialize : initialize,
		_each : _each,
		set : set,
		get : get,
		unset : unset,
		toObject : toObject,
		toTemplateReplacements : toObject,
		keys : keys,
		values : values,
		index : index,
		merge : merge,
		update : update,
		toQueryString : toQueryString,
		inspect : inspect,
		toJSON : toJSON,
		clone : clone
	}
}());
Hash.from = $H;
Object.extend(Number.prototype, function() {
	function toColorPart() {
		return this.toPaddedString(2, 16)
	}
	function succ() {
		return this + 1
	}
	function times(iterator, context) {
		$R(0, this, true).each(iterator, context);
		return this
	}
	function toPaddedString(length, radix) {
		var string = this.toString(radix || 10);
		return "0".times(length - string.length) + string
	}
	function toJSON() {
		return isFinite(this) ? this.toString() : "null"
	}
	function abs() {
		return Math.abs(this)
	}
	function round() {
		return Math.round(this)
	}
	function ceil() {
		return Math.ceil(this)
	}
	function floor() {
		return Math.floor(this)
	}
	return {
		toColorPart : toColorPart,
		succ : succ,
		times : times,
		toPaddedString : toPaddedString,
		toJSON : toJSON,
		abs : abs,
		round : round,
		ceil : ceil,
		floor : floor
	}
}());
function $R(start, end, exclusive) {
	return new ObjectRange(start, end, exclusive)
}
var ObjectRange = Class.create(Enumerable, function() {
	function initialize(start, end, exclusive) {
		this.start = start;
		this.end = end;
		this.exclusive = exclusive
	}
	function _each(iterator) {
		var value = this.start;
		while (this.include(value)) {
			iterator(value);
			value = value.succ()
		}
	}
	function include(value) {
		if (value < this.start)
			return false;
		if (this.exclusive)
			return value < this.end;
		return value <= this.end
	}
	return {
		initialize : initialize,
		_each : _each,
		include : include
	}
}());
var Ajax = {
	getTransport : function() {
		return Try.these(function() {
			return new XMLHttpRequest
		}, function() {
			return new ActiveXObject("Msxml2.XMLHTTP")
		}, function() {
			return new ActiveXObject("Microsoft.XMLHTTP")
		}) || false
	},
	activeRequestCount : 0
};
Ajax.Responders = {
	responders : [],
	_each : function(iterator) {
		this.responders._each(iterator)
	},
	register : function(responder) {
		if (!this.include(responder))
			this.responders.push(responder)
	},
	unregister : function(responder) {
		this.responders = this.responders.without(responder)
	},
	dispatch : function(callback, request, transport, json) {
		this.each(function(responder) {
			if (Object.isFunction(responder[callback]))
				try {
					responder[callback].apply(responder, [ request, transport,
							json ])
				} catch (e) {
				}
		})
	}
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register( {
	onCreate : function() {
		Ajax.activeRequestCount++
	},
	onComplete : function() {
		Ajax.activeRequestCount--
	}
});
Ajax.Base = Class.create( {
	initialize : function(options) {
		this.options = {
			method : "post",
			asynchronous : true,
			contentType : "application/x-www-form-urlencoded",
			encoding : "UTF-8",
			parameters : "",
			evalJSON : true,
			evalJS : true
		};
		Object.extend(this.options, options || {});
		this.options.method = this.options.method.toLowerCase();
		if (Object.isString(this.options.parameters))
			this.options.parameters = this.options.parameters.toQueryParams();
		else if (Object.isHash(this.options.parameters))
			this.options.parameters = this.options.parameters.toObject()
	}
});
Ajax.Request = Class
		.create(
				Ajax.Base,
				{
					_complete : false,
					initialize : function($super, url, options) {
						$super(options);
						this.transport = Ajax.getTransport();
						this.request(url)
					},
					request : function(url) {
						this.url = url;
						this.method = this.options.method;
						var params = Object.clone(this.options.parameters);
						if (! [ "get", "post" ].include(this.method)) {
							params["_method"] = this.method;
							this.method = "post"
						}
						this.parameters = params;
						if (params = Object.toQueryString(params))
							if (this.method == "get")
								this.url += (this.url.include("?") ? "&" : "?")
										+ params;
							else if (/Konqueror|Safari|KHTML/
									.test(navigator.userAgent))
								params += "&_=";
						try {
							var response = new Ajax.Response(this);
							if (this.options.onCreate)
								this.options.onCreate(response);
							Ajax.Responders
									.dispatch("onCreate", this, response);
							this.transport.open(this.method.toUpperCase(),
									this.url, this.options.asynchronous);
							if (this.options.asynchronous)
								this.respondToReadyState.bind(this).defer(1);
							this.transport.onreadystatechange = this.onStateChange
									.bind(this);
							this.setRequestHeaders();
							this.body = this.method == "post" ? this.options.postBody
									|| params
									: null;
							this.transport.send(this.body);
							if (!this.options.asynchronous
									&& this.transport.overrideMimeType)
								this.onStateChange()
						} catch (e) {
							this.dispatchException(e)
						}
					},
					onStateChange : function() {
						var readyState = this.transport.readyState;
						if (readyState > 1
								&& !(readyState == 4 && this._complete))
							this.respondToReadyState(this.transport.readyState)
					},
					setRequestHeaders : function() {
						var headers = {
							"X-Requested-With" : "XMLHttpRequest",
							"X-Prototype-Version" : Prototype.Version,
							Accept : "text/javascript, text/html, application/xml, text/xml, */*"
						};
						if (this.method == "post") {
							headers["Content-type"] = this.options.contentType
									+ (this.options.encoding ? "; charset="
											+ this.options.encoding : "");
							if (this.transport.overrideMimeType
									&& (navigator.userAgent
											.match(/Gecko\/(\d{4})/) || [ 0,
											2005 ])[1] < 2005)
								headers["Connection"] = "close"
						}
						if (typeof this.options.requestHeaders == "object") {
							var extras = this.options.requestHeaders;
							if (Object.isFunction(extras.push))
								for ( var i = 0, length = extras.length; i < length; i += 2)
									headers[extras[i]] = extras[i + 1];
							else
								$H(extras).each(function(pair) {
									headers[pair.key] = pair.value
								})
						}
						for ( var name in headers)
							this.transport
									.setRequestHeader(name, headers[name])
					},
					success : function() {
						var status = this.getStatus();
						return !status || status >= 200 && status < 300
					},
					getStatus : function() {
						try {
							return this.transport.status || 0
						} catch (e) {
							return 0
						}
					},
					respondToReadyState : function(readyState) {
						var state = Ajax.Request.Events[readyState], response = new Ajax.Response(
								this);
						if (state == "Complete") {
							try {
								this._complete = true;
								(this.options["on" + response.status]
										|| this.options["on"
												+ (this.success() ? "Success"
														: "Failure")] || Prototype.emptyFunction)
										(response, response.headerJSON)
							} catch (e) {
								this.dispatchException(e)
							}
							var contentType = response
									.getHeader("Content-type");
							if (this.options.evalJS == "force"
									|| this.options.evalJS
									&& this.isSameOrigin()
									&& contentType
									&& contentType
											.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i))
								this.evalResponse()
						}
						try {
							(this.options["on" + state] || Prototype.emptyFunction)
									(response, response.headerJSON);
							Ajax.Responders.dispatch("on" + state, this,
									response, response.headerJSON)
						} catch (e) {
							this.dispatchException(e)
						}
						if (state == "Complete")
							this.transport.onreadystatechange = Prototype.emptyFunction
					},
					isSameOrigin : function() {
						var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
						return !m
								|| m[0] == "#{protocol}//#{domain}#{port}"
										.interpolate( {
											protocol : location.protocol,
											domain : document.domain,
											port : location.port ? ":"
													+ location.port : ""
										})
					},
					getHeader : function(name) {
						try {
							return this.transport.getResponseHeader(name)
									|| null
						} catch (e) {
							return null
						}
					},
					evalResponse : function() {
						try {
							return eval((this.transport.responseText || "")
									.unfilterJSON())
						} catch (e) {
							this.dispatchException(e)
						}
					},
					dispatchException : function(exception) {
						(this.options.onException || Prototype.emptyFunction)(
								this, exception);
						Ajax.Responders
								.dispatch("onException", this, exception)
					}
				});
Ajax.Request.Events = [ "Uninitialized", "Loading", "Loaded", "Interactive",
		"Complete" ];
Ajax.Response = Class
		.create( {
			initialize : function(request) {
				this.request = request;
				var transport = this.transport = request.transport, readyState = this.readyState = transport.readyState;
				if (readyState > 2 && !Prototype.Browser.IE || readyState == 4) {
					this.status = this.getStatus();
					this.statusText = this.getStatusText();
					this.responseText = String
							.interpret(transport.responseText);
					this.headerJSON = this._getHeaderJSON()
				}
				if (readyState == 4) {
					var xml = transport.responseXML;
					this.responseXML = Object.isUndefined(xml) ? null : xml;
					this.responseJSON = this._getResponseJSON()
				}
			},
			status : 0,
			statusText : "",
			getStatus : Ajax.Request.prototype.getStatus,
			getStatusText : function() {
				try {
					return this.transport.statusText || ""
				} catch (e) {
					return ""
				}
			},
			getHeader : Ajax.Request.prototype.getHeader,
			getAllHeaders : function() {
				try {
					return this.getAllResponseHeaders()
				} catch (e) {
					return null
				}
			},
			getResponseHeader : function(name) {
				return this.transport.getResponseHeader(name)
			},
			getAllResponseHeaders : function() {
				return this.transport.getAllResponseHeaders()
			},
			_getHeaderJSON : function() {
				var json = this.getHeader("X-JSON");
				if (!json)
					return null;
				json = decodeURIComponent(escape(json));
				try {
					return json.evalJSON(this.request.options.sanitizeJSON
							|| !this.request.isSameOrigin())
				} catch (e) {
					this.request.dispatchException(e)
				}
			},
			_getResponseJSON : function() {
				var options = this.request.options;
				if (!options.evalJSON
						|| options.evalJSON != "force"
						&& !(this.getHeader("Content-type") || "")
								.include("application/json")
						|| this.responseText.blank())
					return null;
				try {
					return this.responseText.evalJSON(options.sanitizeJSON
							|| !this.request.isSameOrigin())
				} catch (e) {
					this.request.dispatchException(e)
				}
			}
		});
Ajax.Updater = Class.create(Ajax.Request,
		{
			initialize : function($super, container, url, options) {
				this.container = {
					success : container.success || container,
					failure : container.failure
							|| (container.success ? null : container)
				};
				options = Object.clone(options);
				var onComplete = options.onComplete;
				options.onComplete = function(response, json) {
					this.updateContent(response.responseText);
					if (Object.isFunction(onComplete))
						onComplete(response, json)
				}.bind(this);
				$super(url, options)
			},
			updateContent : function(responseText) {
				var receiver = this.container[this.success() ? "success"
						: "failure"], options = this.options;
				if (!options.evalScripts)
					responseText = responseText.stripScripts();
				if (receiver = $(receiver))
					if (options.insertion)
						if (Object.isString(options.insertion)) {
							var insertion = {};
							insertion[options.insertion] = responseText;
							receiver.insert(insertion)
						} else
							options.insertion(receiver, responseText);
					else
						receiver.update(responseText)
			}
		});
Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
	initialize : function($super, container, url, options) {
		$super(options);
		this.onComplete = this.options.onComplete;
		this.frequency = this.options.frequency || 2;
		this.decay = this.options.decay || 1;
		this.updater = {};
		this.container = container;
		this.url = url;
		this.start()
	},
	start : function() {
		this.options.onComplete = this.updateComplete.bind(this);
		this.onTimerEvent()
	},
	stop : function() {
		this.updater.options.onComplete = undefined;
		clearTimeout(this.timer);
		(this.onComplete || Prototype.emptyFunction).apply(this, arguments)
	},
	updateComplete : function(response) {
		if (this.options.decay) {
			this.decay = response.responseText == this.lastText ? this.decay
					* this.options.decay : 1;
			this.lastText = response.responseText
		}
		this.timer = this.onTimerEvent.bind(this).delay(
				this.decay * this.frequency)
	},
	onTimerEvent : function() {
		this.updater = new Ajax.Updater(this.container, this.url, this.options)
	}
});
function $(element) {
	if (arguments.length > 1) {
		for ( var i = 0, elements = [], length = arguments.length; i < length; i++)
			elements.push($(arguments[i]));
		return elements
	}
	if (Object.isString(element))
		element = document.getElementById(element);
	return Element.extend(element)
}
if (Prototype.BrowserFeatures.XPath)
	document._getElementsByXPath = function(expression, parentElement) {
		var results = [];
		var query = document.evaluate(expression, $(parentElement) || document,
				null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
		for ( var i = 0, length = query.snapshotLength; i < length; i++)
			results.push(Element.extend(query.snapshotItem(i)));
		return results
	};
if (!window.Node)
	var Node = {};
if (!Node.ELEMENT_NODE)
	Object.extend(Node, {
		ELEMENT_NODE : 1,
		ATTRIBUTE_NODE : 2,
		TEXT_NODE : 3,
		CDATA_SECTION_NODE : 4,
		ENTITY_REFERENCE_NODE : 5,
		ENTITY_NODE : 6,
		PROCESSING_INSTRUCTION_NODE : 7,
		COMMENT_NODE : 8,
		DOCUMENT_NODE : 9,
		DOCUMENT_TYPE_NODE : 10,
		DOCUMENT_FRAGMENT_NODE : 11,
		NOTATION_NODE : 12
	});
(function(global) {
	var SETATTRIBUTE_IGNORES_NAME = function() {
		var elForm = document.createElement("form");
		var elInput = document.createElement("input");
		var root = document.documentElement;
		elInput.setAttribute("name", "test");
		elForm.appendChild(elInput);
		root.appendChild(elForm);
		var isBuggy = elForm.elements ? typeof elForm.elements.test == "undefined"
				: null;
		root.removeChild(elForm);
		elForm = elInput = null;
		return isBuggy
	}();
	var element = global.Element;
	global.Element = function(tagName, attributes) {
		attributes = attributes || {};
		tagName = tagName.toLowerCase();
		var cache = Element.cache;
		if (SETATTRIBUTE_IGNORES_NAME && attributes.name) {
			tagName = "<" + tagName + ' name="' + attributes.name + '">';
			delete attributes.name;
			return Element.writeAttribute(document.createElement(tagName),
					attributes)
		}
		if (!cache[tagName])
			cache[tagName] = Element.extend(document.createElement(tagName));
		return Element.writeAttribute(cache[tagName].cloneNode(false),
				attributes)
	};
	Object.extend(global.Element, element || {});
	if (element)
		global.Element.prototype = element.prototype
})(this);
Element.cache = {};
Element.idCounter = 1;
Element.Methods = {
	visible : function(element) {
		return $(element).style.display != "none"
	},
	toggle : function(element) {
		element = $(element);
		Element[Element.visible(element) ? "hide" : "show"](element);
		return element
	},
	hide : function(element) {
		element = $(element);
		element.style.display = "none";
		return element
	},
	show : function(element) {
		element = $(element);
		element.style.display = "";
		return element
	},
	remove : function(element) {
		element = $(element);
		element.parentNode.removeChild(element);
		return element
	},
	update : function() {
		var SELECT_ELEMENT_INNERHTML_BUGGY = function() {
			var el = document.createElement("select"), isBuggy = true;
			el.innerHTML = '<option value="test">test</option>';
			if (el.options && el.options[0])
				isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
			el = null;
			return isBuggy
		}();
		var TABLE_ELEMENT_INNERHTML_BUGGY = function() {
			try {
				var el = document.createElement("table");
				if (el && el.tBodies) {
					el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
					var isBuggy = typeof el.tBodies[0] == "undefined";
					el = null;
					return isBuggy
				}
			} catch (e) {
				return true
			}
		}();
		var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = function() {
			var s = document.createElement("script"), isBuggy = false;
			try {
				s.appendChild(document.createTextNode(""));
				isBuggy = !s.firstChild || s.firstChild
						&& s.firstChild.nodeType !== 3
			} catch (e) {
				isBuggy = true
			}
			s = null;
			return isBuggy
		}();
		function update(element, content) {
			element = $(element);
			if (content && content.toElement)
				content = content.toElement();
			if (Object.isElement(content))
				return element.update().insert(content);
			content = Object.toHTML(content);
			var tagName = element.tagName.toUpperCase();
			if (tagName === "SCRIPT"
					&& SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
				element.text = content;
				return element
			}
			if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY)
				if (tagName in Element._insertionTranslations.tags) {
					while (element.firstChild)
						element.removeChild(element.firstChild);
					Element._getContentFromAnonymousElement(tagName,
							content.stripScripts()).each(function(node) {
						element.appendChild(node)
					})
				} else
					element.innerHTML = content.stripScripts();
			else
				element.innerHTML = content.stripScripts();
			content.evalScripts.bind(content).defer();
			return element
		}
		return update
	}(),
	replace : function(element, content) {
		element = $(element);
		if (content && content.toElement)
			content = content.toElement();
		else if (!Object.isElement(content)) {
			content = Object.toHTML(content);
			var range = element.ownerDocument.createRange();
			range.selectNode(element);
			content.evalScripts.bind(content).defer();
			content = range.createContextualFragment(content.stripScripts())
		}
		element.parentNode.replaceChild(content, element);
		return element
	},
	insert : function(element, insertions) {
		element = $(element);
		if (Object.isString(insertions) || Object.isNumber(insertions)
				|| Object.isElement(insertions) || insertions
				&& (insertions.toElement || insertions.toHTML))
			insertions = {
				bottom : insertions
			};
		var content, insert, tagName, childNodes;
		for ( var position in insertions) {
			content = insertions[position];
			position = position.toLowerCase();
			insert = Element._insertionTranslations[position];
			if (content && content.toElement)
				content = content.toElement();
			if (Object.isElement(content)) {
				insert(element, content);
				continue
			}
			content = Object.toHTML(content);
			tagName = (position == "before" || position == "after" ? element.parentNode
					: element).tagName.toUpperCase();
			childNodes = Element._getContentFromAnonymousElement(tagName,
					content.stripScripts());
			if (position == "top" || position == "after")
				childNodes.reverse();
			childNodes.each(insert.curry(element));
			content.evalScripts.bind(content).defer()
		}
		return element
	},
	wrap : function(element, wrapper, attributes) {
		element = $(element);
		if (Object.isElement(wrapper))
			$(wrapper).writeAttribute(attributes || {});
		else if (Object.isString(wrapper))
			wrapper = new Element(wrapper, attributes);
		else
			wrapper = new Element("div", wrapper);
		if (element.parentNode)
			element.parentNode.replaceChild(wrapper, element);
		wrapper.appendChild(element);
		return wrapper
	},
	inspect : function(element) {
		element = $(element);
		var result = "<" + element.tagName.toLowerCase();
		$H( {
			id : "id",
			className : "class"
		}).each(function(pair) {
			var property = pair.first(), attribute = pair.last();
			var value = (element[property] || "").toString();
			if (value)
				result += " " + attribute + "=" + value.inspect(true)
		});
		return result + ">"
	},
	recursivelyCollect : function(element, property) {
		element = $(element);
		var elements = [];
		while (element = element[property])
			if (element.nodeType == 1)
				elements.push(Element.extend(element));
		return elements
	},
	ancestors : function(element) {
		return Element.recursivelyCollect(element, "parentNode")
	},
	descendants : function(element) {
		return Element.select(element, "*")
	},
	firstDescendant : function(element) {
		element = $(element).firstChild;
		while (element && element.nodeType != 1)
			element = element.nextSibling;
		return $(element)
	},
	immediateDescendants : function(element) {
		if (!(element = $(element).firstChild))
			return [];
		while (element && element.nodeType != 1)
			element = element.nextSibling;
		if (element)
			return [ element ].concat($(element).nextSiblings());
		return []
	},
	previousSiblings : function(element) {
		return Element.recursivelyCollect(element, "previousSibling")
	},
	nextSiblings : function(element) {
		return Element.recursivelyCollect(element, "nextSibling")
	},
	siblings : function(element) {
		element = $(element);
		return Element.previousSiblings(element).reverse().concat(
				Element.nextSiblings(element))
	},
	match : function(element, selector) {
		if (Object.isString(selector))
			selector = new Selector(selector);
		return selector.match($(element))
	},
	up : function(element, expression, index) {
		element = $(element);
		if (arguments.length == 1)
			return $(element.parentNode);
		var ancestors = Element.ancestors(element);
		return Object.isNumber(expression) ? ancestors[expression] : Selector
				.findElement(ancestors, expression, index)
	},
	down : function(element, expression, index) {
		element = $(element);
		if (arguments.length == 1)
			return Element.firstDescendant(element);
		return Object.isNumber(expression) ? Element.descendants(element)[expression]
				: Element.select(element, expression)[index || 0]
	},
	previous : function(element, expression, index) {
		element = $(element);
		if (arguments.length == 1)
			return $(Selector.handlers.previousElementSibling(element));
		var previousSiblings = Element.previousSiblings(element);
		return Object.isNumber(expression) ? previousSiblings[expression]
				: Selector.findElement(previousSiblings, expression, index)
	},
	next : function(element, expression, index) {
		element = $(element);
		if (arguments.length == 1)
			return $(Selector.handlers.nextElementSibling(element));
		var nextSiblings = Element.nextSiblings(element);
		return Object.isNumber(expression) ? nextSiblings[expression]
				: Selector.findElement(nextSiblings, expression, index)
	},
	select : function(element) {
		var args = Array.prototype.slice.call(arguments, 1);
		return Selector.findChildElements(element, args)
	},
	adjacent : function(element) {
		var args = Array.prototype.slice.call(arguments, 1);
		return Selector.findChildElements(element.parentNode, args).without(
				element)
	},
	identify : function(element) {
		element = $(element);
		var id = Element.readAttribute(element, "id");
		if (id)
			return id;
		do
			id = "anonymous_element_" + Element.idCounter++;
		while ($(id));
		Element.writeAttribute(element, "id", id);
		return id
	},
	readAttribute : function(element, name) {
		element = $(element);
		if (Prototype.Browser.IE) {
			var t = Element._attributeTranslations.read;
			if (t.values[name])
				return t.values[name](element, name);
			if (t.names[name])
				name = t.names[name];
			if (name.include(":"))
				return !element.attributes || !element.attributes[name] ? null
						: element.attributes[name].value
		}
		return element.getAttribute(name)
	},
	writeAttribute : function(element, name, value) {
		element = $(element);
		var attributes = {}, t = Element._attributeTranslations.write;
		if (typeof name == "object")
			attributes = name;
		else
			attributes[name] = Object.isUndefined(value) ? true : value;
		for ( var attr in attributes) {
			name = t.names[attr] || attr;
			value = attributes[attr];
			if (t.values[attr])
				name = t.values[attr](element, value);
			if (value === false || value === null)
				element.removeAttribute(name);
			else if (value === true)
				element.setAttribute(name, name);
			else
				element.setAttribute(name, value)
		}
		return element
	},
	getHeight : function(element) {
		return Element.getDimensions(element).height
	},
	getWidth : function(element) {
		return Element.getDimensions(element).width
	},
	classNames : function(element) {
		return new Element.ClassNames(element)
	},
	hasClassName : function(element, className) {
		if (!(element = $(element)))
			return;
		var elementClassName = element.className;
		return elementClassName.length > 0
				&& (elementClassName == className || (new RegExp("(^|\\s)"
						+ className + "(\\s|$)")).test(elementClassName))
	},
	addClassName : function(element, className) {
		if (!(element = $(element)))
			return;
		if (!Element.hasClassName(element, className))
			element.className += (element.className ? " " : "") + className;
		return element
	},
	removeClassName : function(element, className) {
		if (!(element = $(element)))
			return;
		element.className = element.className.replace(
				new RegExp("(^|\\s+)" + className + "(\\s+|$)"), " ").strip();
		return element
	},
	toggleClassName : function(element, className) {
		if (!(element = $(element)))
			return;
		return Element[Element.hasClassName(element, className) ? "removeClassName"
				: "addClassName"](element, className)
	},
	cleanWhitespace : function(element) {
		element = $(element);
		var node = element.firstChild;
		while (node) {
			var nextNode = node.nextSibling;
			if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
				element.removeChild(node);
			node = nextNode
		}
		return element
	},
	empty : function(element) {
		return $(element).innerHTML.blank()
	},
	descendantOf : function(element, ancestor) {
		element = $(element), ancestor = $(ancestor);
		if (element.compareDocumentPosition)
			return (element.compareDocumentPosition(ancestor) & 8) === 8;
		if (ancestor.contains)
			return ancestor.contains(element) && ancestor !== element;
		while (element = element.parentNode)
			if (element == ancestor)
				return true;
		return false
	},
	scrollTo : function(element) {
		element = $(element);
		var pos = Element.cumulativeOffset(element);
		window.scrollTo(pos[0], pos[1]);
		return element
	},
	getStyle : function(element, style) {
		element = $(element);
		style = style == "float" ? "cssFloat" : style.camelize();
		var value = element.style[style];
		if (!value || value == "auto") {
			var css = document.defaultView.getComputedStyle(element, null);
			value = css ? css[style] : null
		}
		if (style == "opacity")
			return value ? parseFloat(value) : 1;
		return value == "auto" ? null : value
	},
	getOpacity : function(element) {
		return $(element).getStyle("opacity")
	},
	setStyle : function(element, styles) {
		element = $(element);
		var elementStyle = element.style, match;
		if (Object.isString(styles)) {
			element.style.cssText += ";" + styles;
			return styles.include("opacity") ? element.setOpacity(styles
					.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element
		}
		for ( var property in styles)
			if (property == "opacity")
				element.setOpacity(styles[property]);
			else
				elementStyle[property == "float" || property == "cssFloat" ? Object
						.isUndefined(elementStyle.styleFloat) ? "cssFloat"
						: "styleFloat"
						: property] = styles[property];
		return element
	},
	setOpacity : function(element, value) {
		element = $(element);
		element.style.opacity = value == 1 || value === "" ? ""
				: value < 1.0E-5 ? 0 : value;
		return element
	},
	getDimensions : function(element) {
		element = $(element);
		var display = Element.getStyle(element, "display");
		if (display != "none" && display != null)
			return {
				width : element.offsetWidth,
				height : element.offsetHeight
			};
		var els = element.style;
		var originalVisibility = els.visibility;
		var originalPosition = els.position;
		var originalDisplay = els.display;
		els.visibility = "hidden";
		if (originalPosition != "fixed")
			els.position = "absolute";
		els.display = "block";
		var originalWidth = element.clientWidth;
		var originalHeight = element.clientHeight;
		els.display = originalDisplay;
		els.position = originalPosition;
		els.visibility = originalVisibility;
		return {
			width : originalWidth,
			height : originalHeight
		}
	},
	makePositioned : function(element) {
		element = $(element);
		var pos = Element.getStyle(element, "position");
		if (pos == "static" || !pos) {
			element._madePositioned = true;
			element.style.position = "relative";
			if (Prototype.Browser.Opera) {
				element.style.top = 0;
				element.style.left = 0
			}
		}
		return element
	},
	undoPositioned : function(element) {
		element = $(element);
		if (element._madePositioned) {
			element._madePositioned = undefined;
			element.style.position = element.style.top = element.style.left = element.style.bottom = element.style.right = ""
		}
		return element
	},
	makeClipping : function(element) {
		element = $(element);
		if (element._overflow)
			return element;
		element._overflow = Element.getStyle(element, "overflow") || "auto";
		if (element._overflow !== "hidden")
			element.style.overflow = "hidden";
		return element
	},
	undoClipping : function(element) {
		element = $(element);
		if (!element._overflow)
			return element;
		element.style.overflow = element._overflow == "auto" ? ""
				: element._overflow;
		element._overflow = null;
		return element
	},
	cumulativeOffset : function(element) {
		var valueT = 0, valueL = 0;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			element = element.offsetParent
		} while (element);
		return Element._returnOffset(valueL, valueT)
	},
	positionedOffset : function(element) {
		var valueT = 0, valueL = 0;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			element = element.offsetParent;
			if (element) {
				if (element.tagName.toUpperCase() == "BODY")
					break;
				var p = Element.getStyle(element, "position");
				if (p !== "static")
					break
			}
		} while (element);
		return Element._returnOffset(valueL, valueT)
	},
	absolutize : function(element) {
		element = $(element);
		if (Element.getStyle(element, "position") == "absolute")
			return element;
		var offsets = Element.positionedOffset(element);
		var top = offsets[1];
		var left = offsets[0];
		var width = element.clientWidth;
		var height = element.clientHeight;
		element._originalLeft = left - parseFloat(element.style.left || 0);
		element._originalTop = top - parseFloat(element.style.top || 0);
		element._originalWidth = element.style.width;
		element._originalHeight = element.style.height;
		element.style.position = "absolute";
		element.style.top = top + "px";
		element.style.left = left + "px";
		element.style.width = width + "px";
		element.style.height = height + "px";
		return element
	},
	relativize : function(element) {
		element = $(element);
		if (Element.getStyle(element, "position") == "relative")
			return element;
		element.style.position = "relative";
		var top = parseFloat(element.style.top || 0)
				- (element._originalTop || 0);
		var left = parseFloat(element.style.left || 0)
				- (element._originalLeft || 0);
		element.style.top = top + "px";
		element.style.left = left + "px";
		element.style.height = element._originalHeight;
		element.style.width = element._originalWidth;
		return element
	},
	cumulativeScrollOffset : function(element) {
		var valueT = 0, valueL = 0;
		do {
			valueT += element.scrollTop || 0;
			valueL += element.scrollLeft || 0;
			element = element.parentNode
		} while (element);
		return Element._returnOffset(valueL, valueT)
	},
	getOffsetParent : function(element) {
		if (element.offsetParent)
			return $(element.offsetParent);
		if (element == document.body)
			return $(element);
		while ((element = element.parentNode) && element != document.body)
			if (Element.getStyle(element, "position") != "static")
				return $(element);
		return $(document.body)
	},
	viewportOffset : function(forElement) {
		var valueT = 0, valueL = 0;
		var element = forElement;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			if (element.offsetParent == document.body
					&& Element.getStyle(element, "position") == "absolute")
				break
		} while (element = element.offsetParent);
		element = forElement;
		do
			if (!Prototype.Browser.Opera || element.tagName
					&& element.tagName.toUpperCase() == "BODY") {
				valueT -= element.scrollTop || 0;
				valueL -= element.scrollLeft || 0
			}
		while (element = element.parentNode);
		return Element._returnOffset(valueL, valueT)
	},
	clonePosition : function(element, source) {
		var options = Object.extend( {
			setLeft : true,
			setTop : true,
			setWidth : true,
			setHeight : true,
			offsetTop : 0,
			offsetLeft : 0
		}, arguments[2] || {});
		source = $(source);
		var p = Element.viewportOffset(source);
		element = $(element);
		var delta = [ 0, 0 ];
		var parent = null;
		if (Element.getStyle(element, "position") == "absolute") {
			parent = Element.getOffsetParent(element);
			delta = Element.viewportOffset(parent)
		}
		if (parent == document.body) {
			delta[0] -= document.body.offsetLeft;
			delta[1] -= document.body.offsetTop
		}
		if (options.setLeft)
			element.style.left = p[0] - delta[0] + options.offsetLeft + "px";
		if (options.setTop)
			element.style.top = p[1] - delta[1] + options.offsetTop + "px";
		if (options.setWidth)
			element.style.width = source.offsetWidth + "px";
		if (options.setHeight)
			element.style.height = source.offsetHeight + "px";
		return element
	}
};
Object.extend(Element.Methods, {
	getElementsBySelector : Element.Methods.select,
	childElements : Element.Methods.immediateDescendants
});
Element._attributeTranslations = {
	write : {
		names : {
			className : "class",
			htmlFor : "for"
		},
		values : {}
	}
};
if (Prototype.Browser.Opera) {
	Element.Methods.getStyle = Element.Methods.getStyle.wrap(function(proceed,
			element, style) {
		switch (style) {
		case "left":
		case "top":
		case "right":
		case "bottom":
			if (proceed(element, "position") === "static")
				return null;
		case "height":
		case "width":
			if (!Element.visible(element))
				return null;
			var dim = parseInt(proceed(element, style), 10);
			if (dim !== element["offset" + style.capitalize()])
				return dim + "px";
			var properties;
			if (style === "height")
				properties = [ "border-top-width", "padding-top",
						"padding-bottom", "border-bottom-width" ];
			else
				properties = [ "border-left-width", "padding-left",
						"padding-right", "border-right-width" ];
			return properties.inject(dim, function(memo, property) {
				var val = proceed(element, property);
				return val === null ? memo : memo - parseInt(val, 10)
			}) + "px";
		default:
			return proceed(element, style)
		}
	});
	Element.Methods.readAttribute = Element.Methods.readAttribute
			.wrap(function(proceed, element, attribute) {
				if (attribute === "title")
					return element.title;
				return proceed(element, attribute)
			})
} else if (Prototype.Browser.IE) {
	Element.Methods.getOffsetParent = Element.Methods.getOffsetParent
			.wrap(function(proceed, element) {
				element = $(element);
				try {
					element.offsetParent
				} catch (e) {
					return $(document.body)
				}
				var position = element.getStyle("position");
				if (position !== "static")
					return proceed(element);
				element.setStyle( {
					position : "relative"
				});
				var value = proceed(element);
				element.setStyle( {
					position : position
				});
				return value
			});
	$w("positionedOffset viewportOffset")
			.each(
					function(method) {
						Element.Methods[method] = Element.Methods[method]
								.wrap(function(proceed, element) {
									element = $(element);
									try {
										element.offsetParent
									} catch (e) {
										return Element._returnOffset(0, 0)
									}
									var position = element.getStyle("position");
									if (position !== "static")
										return proceed(element);
									var offsetParent = element
											.getOffsetParent();
									if (offsetParent
											&& offsetParent
													.getStyle("position") === "fixed")
										offsetParent.setStyle( {
											zoom : 1
										});
									element.setStyle( {
										position : "relative"
									});
									var value = proceed(element);
									element.setStyle( {
										position : position
									});
									return value
								})
					});
	Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset
			.wrap(function(proceed, element) {
				try {
					element.offsetParent
				} catch (e) {
					return Element._returnOffset(0, 0)
				}
				return proceed(element)
			});
	Element.Methods.getStyle = function(element, style) {
		element = $(element);
		style = style == "float" || style == "cssFloat" ? "styleFloat" : style
				.camelize();
		var value = element.style[style];
		if (!value && element.currentStyle)
			value = element.currentStyle[style];
		if (style == "opacity") {
			if (value = (element.getStyle("filter") || "")
					.match(/alpha\(opacity=(.*)\)/))
				if (value[1])
					return parseFloat(value[1]) / 100;
			return 1
		}
		if (value == "auto") {
			if ((style == "width" || style == "height")
					&& element.getStyle("display") != "none")
				return element["offset" + style.capitalize()] + "px";
			return null
		}
		return value
	};
	Element.Methods.setOpacity = function(element, value) {
		function stripAlpha(filter) {
			return filter.replace(/alpha\([^\)]*\)/gi, "")
		}
		element = $(element);
		var currentStyle = element.currentStyle;
		if (currentStyle && !currentStyle.hasLayout || !currentStyle
				&& element.style.zoom == "normal")
			element.style.zoom = 1;
		var filter = element.getStyle("filter"), style = element.style;
		if (value == 1 || value === "") {
			(filter = stripAlpha(filter)) ? (style.filter = filter) : style
					.removeAttribute("filter");
			return element
		} else if (value < 1.0E-5)
			value = 0;
		style.filter = stripAlpha(filter) + "alpha(opacity=" + value * 100
				+ ")";
		return element
	};
	Element._attributeTranslations = function() {
		var classProp = "className";
		var forProp = "for";
		var el = document.createElement("div");
		el.setAttribute(classProp, "x");
		if (el.className !== "x") {
			el.setAttribute("class", "x");
			if (el.className === "x")
				classProp = "class"
		}
		el = null;
		el = document.createElement("label");
		el.setAttribute(forProp, "x");
		if (el.htmlFor !== "x") {
			el.setAttribute("htmlFor", "x");
			if (el.htmlFor === "x")
				forProp = "htmlFor"
		}
		el = null;
		return {
			read : {
				names : {
					"class" : classProp,
					className : classProp,
					"for" : forProp,
					htmlFor : forProp
				},
				values : {
					_getAttr : function(element, attribute) {
						return element.getAttribute(attribute)
					},
					_getAttr2 : function(element, attribute) {
						return element.getAttribute(attribute, 2)
					},
					_getAttrNode : function(element, attribute) {
						var node = element.getAttributeNode(attribute);
						return node ? node.value : ""
					},
					_getEv : function() {
						var el = document.createElement("div");
						el.onclick = Prototype.emptyFunction;
						var value = el.getAttribute("onclick");
						var f;
						if (String(value).indexOf("{") > -1)
							f = function(element, attribute) {
								attribute = element.getAttribute(attribute);
								if (!attribute)
									return null;
								attribute = attribute.toString();
								attribute = attribute.split("{")[1];
								attribute = attribute.split("}")[0];
								return attribute.strip()
							};
						else if (value === "")
							f = function(element, attribute) {
								attribute = element.getAttribute(attribute);
								if (!attribute)
									return null;
								return attribute.strip()
							};
						el = null;
						return f
					}(),
					_flag : function(element, attribute) {
						return $(element).hasAttribute(attribute) ? attribute
								: null
					},
					style : function(element) {
						return element.style.cssText.toLowerCase()
					},
					title : function(element) {
						return element.title
					}
				}
			}
		}
	}();
	Element._attributeTranslations.write = {
		names : Object.extend( {
			cellpadding : "cellPadding",
			cellspacing : "cellSpacing"
		}, Element._attributeTranslations.read.names),
		values : {
			checked : function(element, value) {
				element.checked = !!value
			},
			style : function(element, value) {
				element.style.cssText = value ? value : ""
			}
		}
	};
	Element._attributeTranslations.has = {};
	$w(
			"colSpan rowSpan vAlign dateTime accessKey tabIndex "
					+ "encType maxLength readOnly longDesc frameBorder")
			.each(
					function(attr) {
						Element._attributeTranslations.write.names[attr
								.toLowerCase()] = attr;
						Element._attributeTranslations.has[attr.toLowerCase()] = attr
					});
	(function(v) {
		Object.extend(v, {
			href : v._getAttr2,
			src : v._getAttr2,
			type : v._getAttr,
			action : v._getAttrNode,
			disabled : v._flag,
			checked : v._flag,
			readonly : v._flag,
			multiple : v._flag,
			onload : v._getEv,
			onunload : v._getEv,
			onclick : v._getEv,
			ondblclick : v._getEv,
			onmousedown : v._getEv,
			onmouseup : v._getEv,
			onmouseover : v._getEv,
			onmousemove : v._getEv,
			onmouseout : v._getEv,
			onfocus : v._getEv,
			onblur : v._getEv,
			onkeypress : v._getEv,
			onkeydown : v._getEv,
			onkeyup : v._getEv,
			onsubmit : v._getEv,
			onreset : v._getEv,
			onselect : v._getEv,
			onchange : v._getEv
		})
	})(Element._attributeTranslations.read.values);
	if (Prototype.BrowserFeatures.ElementExtensions)
		(function() {
			function _descendants(element) {
				var nodes = element.getElementsByTagName("*"), results = [];
				for ( var i = 0, node; node = nodes[i]; i++)
					if (node.tagName !== "!")
						results.push(node);
				return results
			}
			Element.Methods.down = function(element, expression, index) {
				element = $(element);
				if (arguments.length == 1)
					return element.firstDescendant();
				return Object.isNumber(expression) ? _descendants(element)[expression]
						: Element.select(element, expression)[index || 0]
			}
		})()
} else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent))
	Element.Methods.setOpacity = function(element, value) {
		element = $(element);
		element.style.opacity = value == 1 ? 0.999999 : value === "" ? ""
				: value < 1.0E-5 ? 0 : value;
		return element
	};
else if (Prototype.Browser.WebKit) {
	Element.Methods.setOpacity = function(element, value) {
		element = $(element);
		element.style.opacity = value == 1 || value === "" ? ""
				: value < 1.0E-5 ? 0 : value;
		if (value == 1)
			if (element.tagName.toUpperCase() == "IMG" && element.width) {
				element.width++;
				element.width--
			} else
				try {
					var n = document.createTextNode(" ");
					element.appendChild(n);
					element.removeChild(n)
				} catch (e) {
				}
		return element
	};
	Element.Methods.cumulativeOffset = function(element) {
		var valueT = 0, valueL = 0;
		do {
			valueT += element.offsetTop || 0;
			valueL += element.offsetLeft || 0;
			if (element.offsetParent == document.body)
				if (Element.getStyle(element, "position") == "absolute")
					break;
			element = element.offsetParent
		} while (element);
		return Element._returnOffset(valueL, valueT)
	}
}
if ("outerHTML" in document.documentElement)
	Element.Methods.replace = function(element, content) {
		element = $(element);
		if (content && content.toElement)
			content = content.toElement();
		if (Object.isElement(content)) {
			element.parentNode.replaceChild(content, element);
			return element
		}
		content = Object.toHTML(content);
		var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
		if (Element._insertionTranslations.tags[tagName]) {
			var nextSibling = element.next();
			var fragments = Element._getContentFromAnonymousElement(tagName,
					content.stripScripts());
			parent.removeChild(element);
			if (nextSibling)
				fragments.each(function(node) {
					parent.insertBefore(node, nextSibling)
				});
			else
				fragments.each(function(node) {
					parent.appendChild(node)
				})
		} else
			element.outerHTML = content.stripScripts();
		content.evalScripts.bind(content).defer();
		return element
	};
Element._returnOffset = function(l, t) {
	var result = [ l, t ];
	result.left = l;
	result.top = t;
	return result
};
Element._getContentFromAnonymousElement = function(tagName, html) {
	var div = new Element("div"), t = Element._insertionTranslations.tags[tagName];
	if (t) {
		div.innerHTML = t[0] + html + t[1];
		t[2].times(function() {
			div = div.firstChild
		})
	} else
		div.innerHTML = html;
	return $A(div.childNodes)
};
Element._insertionTranslations = {
	before : function(element, node) {
		element.parentNode.insertBefore(node, element)
	},
	top : function(element, node) {
		element.insertBefore(node, element.firstChild)
	},
	bottom : function(element, node) {
		element.appendChild(node)
	},
	after : function(element, node) {
		element.parentNode.insertBefore(node, element.nextSibling)
	},
	tags : {
		TABLE : [ "<table>", "</table>", 1 ],
		TBODY : [ "<table><tbody>", "</tbody></table>", 2 ],
		TR : [ "<table><tbody><tr>", "</tr></tbody></table>", 3 ],
		TD : [ "<table><tbody><tr><td>", "</td></tr></tbody></table>", 4 ],
		SELECT : [ "<select>", "</select>", 1 ]
	}
};
(function() {
	var tags = Element._insertionTranslations.tags;
	Object.extend(tags, {
		THEAD : tags.TBODY,
		TFOOT : tags.TBODY,
		TH : tags.TD
	})
})();
Element.Methods.Simulated = {
	hasAttribute : function(element, attribute) {
		attribute = Element._attributeTranslations.has[attribute] || attribute;
		var node = $(element).getAttributeNode(attribute);
		return !!(node && node.specified)
	}
};
Element.Methods.ByTag = {};
Object.extend(Element, Element.Methods);
(function(div) {
	if (!Prototype.BrowserFeatures.ElementExtensions && div["__proto__"]) {
		window.HTMLElement = {};
		window.HTMLElement.prototype = div["__proto__"];
		Prototype.BrowserFeatures.ElementExtensions = true
	}
	div = null
})(document.createElement("div"));
Element.extend = function() {
	function checkDeficiency(tagName) {
		if (typeof window.Element != "undefined") {
			var proto = window.Element.prototype;
			if (proto) {
				var id = "_" + (Math.random() + "").slice(2);
				var el = document.createElement(tagName);
				proto[id] = "x";
				var isBuggy = el[id] !== "x";
				delete proto[id];
				el = null;
				return isBuggy
			}
		}
		return false
	}
	function extendElementWith(element, methods) {
		for ( var property in methods) {
			var value = methods[property];
			if (Object.isFunction(value) && !(property in element))
				element[property] = value.methodize()
		}
	}
	var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency("object");
	if (Prototype.BrowserFeatures.SpecificElementExtensions) {
		if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY)
			return function(element) {
				if (element
						&& typeof element._extendedByPrototype == "undefined") {
					var t = element.tagName;
					if (t && /^(?:object|applet|embed)$/i.test(t)) {
						extendElementWith(element, Element.Methods);
						extendElementWith(element, Element.Methods.Simulated);
						extendElementWith(element, Element.Methods.ByTag[t
								.toUpperCase()])
					}
				}
				return element
			};
		return Prototype.K
	}
	var Methods = {}, ByTag = Element.Methods.ByTag;
	var extend = Object.extend(function(element) {
		if (!element || typeof element._extendedByPrototype != "undefined"
				|| element.nodeType != 1 || element == window)
			return element;
		var methods = Object.clone(Methods), tagName = element.tagName
				.toUpperCase();
		if (ByTag[tagName])
			Object.extend(methods, ByTag[tagName]);
		extendElementWith(element, methods);
		element._extendedByPrototype = Prototype.emptyFunction;
		return element
	}, {
		refresh : function() {
			if (!Prototype.BrowserFeatures.ElementExtensions) {
				Object.extend(Methods, Element.Methods);
				Object.extend(Methods, Element.Methods.Simulated)
			}
		}
	});
	extend.refresh();
	return extend
}();
Element.hasAttribute = function(element, attribute) {
	if (element.hasAttribute)
		return element.hasAttribute(attribute);
	return Element.Methods.Simulated.hasAttribute(element, attribute)
};
Element.addMethods = function(methods) {
	var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
	if (!methods) {
		Object.extend(Form, Form.Methods);
		Object.extend(Form.Element, Form.Element.Methods);
		Object.extend(Element.Methods.ByTag, {
			FORM : Object.clone(Form.Methods),
			INPUT : Object.clone(Form.Element.Methods),
			SELECT : Object.clone(Form.Element.Methods),
			TEXTAREA : Object.clone(Form.Element.Methods)
		})
	}
	if (arguments.length == 2) {
		var tagName = methods;
		methods = arguments[1]
	}
	if (!tagName)
		Object.extend(Element.Methods, methods || {});
	else if (Object.isArray(tagName))
		tagName.each(extend);
	else
		extend(tagName);
	function extend(tagName) {
		tagName = tagName.toUpperCase();
		if (!Element.Methods.ByTag[tagName])
			Element.Methods.ByTag[tagName] = {};
		Object.extend(Element.Methods.ByTag[tagName], methods)
	}
	function copy(methods, destination, onlyIfAbsent) {
		onlyIfAbsent = onlyIfAbsent || false;
		for ( var property in methods) {
			var value = methods[property];
			if (!Object.isFunction(value))
				continue;
			if (!onlyIfAbsent || !(property in destination))
				destination[property] = value.methodize()
		}
	}
	function findDOMClass(tagName) {
		var klass;
		var trans = {
			OPTGROUP : "OptGroup",
			TEXTAREA : "TextArea",
			P : "Paragraph",
			FIELDSET : "FieldSet",
			UL : "UList",
			OL : "OList",
			DL : "DList",
			DIR : "Directory",
			H1 : "Heading",
			H2 : "Heading",
			H3 : "Heading",
			H4 : "Heading",
			H5 : "Heading",
			H6 : "Heading",
			Q : "Quote",
			INS : "Mod",
			DEL : "Mod",
			A : "Anchor",
			IMG : "Image",
			CAPTION : "TableCaption",
			COL : "TableCol",
			COLGROUP : "TableCol",
			THEAD : "TableSection",
			TFOOT : "TableSection",
			TBODY : "TableSection",
			TR : "TableRow",
			TH : "TableCell",
			TD : "TableCell",
			FRAMESET : "FrameSet",
			IFRAME : "IFrame"
		};
		if (trans[tagName])
			klass = "HTML" + trans[tagName] + "Element";
		if (window[klass])
			return window[klass];
		klass = "HTML" + tagName + "Element";
		if (window[klass])
			return window[klass];
		klass = "HTML" + tagName.capitalize() + "Element";
		if (window[klass])
			return window[klass];
		var element = document.createElement(tagName);
		var proto = element["__proto__"] || element.constructor.prototype;
		element = null;
		return proto
	}
	var elementPrototype = window.HTMLElement ? HTMLElement.prototype
			: Element.prototype;
	if (F.ElementExtensions) {
		copy(Element.Methods, elementPrototype);
		copy(Element.Methods.Simulated, elementPrototype, true)
	}
	if (F.SpecificElementExtensions)
		for ( var tag in Element.Methods.ByTag) {
			var klass = findDOMClass(tag);
			if (Object.isUndefined(klass))
				continue;
			copy(T[tag], klass.prototype)
		}
	Object.extend(Element, Element.Methods);
	delete Element.ByTag;
	if (Element.extend.refresh)
		Element.extend.refresh();
	Element.cache = {}
};
document.viewport = {
	getDimensions : function() {
		return {
			width : this.getWidth(),
			height : this.getHeight()
		}
	},
	getScrollOffsets : function() {
		return Element._returnOffset(window.pageXOffset
				|| document.documentElement.scrollLeft
				|| document.body.scrollLeft, window.pageYOffset
				|| document.documentElement.scrollTop
				|| document.body.scrollTop)
	}
};
(function(viewport) {
	var B = Prototype.Browser, doc = document, element, property = {};
	function getRootElement() {
		if (B.WebKit && !doc.evaluate)
			return document;
		if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
			return document.body;
		return document.documentElement
	}
	function define(D) {
		if (!element)
			element = getRootElement();
		property[D] = "client" + D;
		viewport["get" + D] = function() {
			return element[property[D]]
		};
		return viewport["get" + D]()
	}
	viewport.getWidth = define.curry("Width");
	viewport.getHeight = define.curry("Height")
})(document.viewport);
Element.Storage = {
	UID : 1
};
Element
		.addMethods( {
			getStorage : function(element) {
				if (!(element = $(element)))
					return;
				var uid;
				if (element === window)
					uid = 0;
				else {
					if (typeof element._prototypeUID === "undefined")
						element._prototypeUID = [ Element.Storage.UID++ ];
					uid = element._prototypeUID[0]
				}
				if (!Element.Storage[uid])
					Element.Storage[uid] = $H();
				return Element.Storage[uid]
			},
			store : function(element, key, value) {
				if (!(element = $(element)))
					return;
				if (arguments.length === 2)
					Element.getStorage(element).update(key);
				else
					Element.getStorage(element).set(key, value);
				return element
			},
			retrieve : function(element, key, defaultValue) {
				if (!(element = $(element)))
					return;
				var hash = Element.getStorage(element), value = hash.get(key);
				if (Object.isUndefined(value)) {
					hash.set(key, defaultValue);
					value = defaultValue
				}
				return value
			},
			clone : function(element, deep) {
				if (!(element = $(element)))
					return;
				var clone = element.cloneNode(deep);
				clone._prototypeUID = void 0;
				if (deep) {
					var descendants = Element.select(clone, "*"), i = descendants.length;
					while (i--)
						descendants[i]._prototypeUID = void 0
				}
				return Element.extend(clone)
			}
		});
var Selector = Class
		.create( {
			initialize : function(expression) {
				this.expression = expression.strip();
				if (this.shouldUseSelectorsAPI())
					this.mode = "selectorsAPI";
				else if (this.shouldUseXPath()) {
					this.mode = "xpath";
					this.compileXPathMatcher()
				} else {
					this.mode = "normal";
					this.compileMatcher()
				}
			},
			shouldUseXPath : function() {
				var IS_DESCENDANT_SELECTOR_BUGGY = function() {
					var isBuggy = false;
					if (document.evaluate && window.XPathResult) {
						var el = document.createElement("div");
						el.innerHTML = "<ul><li></li></ul><div><ul><li></li></ul></div>";
						var xpath = ".//*[local-name()='ul' or local-name()='UL']"
								+ "//*[local-name()='li' or local-name()='LI']";
						var result = document.evaluate(xpath, el, null,
								XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
						isBuggy = result.snapshotLength !== 2;
						el = null
					}
					return isBuggy
				}();
				return function() {
					if (!Prototype.BrowserFeatures.XPath)
						return false;
					var e = this.expression;
					if (Prototype.Browser.WebKit
							&& (e.include("-of-type") || e.include(":empty")))
						return false;
					if (/(\[[\w-]*?:|:checked)/.test(e))
						return false;
					if (IS_DESCENDANT_SELECTOR_BUGGY)
						return false;
					return true
				}
			}(),
			shouldUseSelectorsAPI : function() {
				if (!Prototype.BrowserFeatures.SelectorsAPI)
					return false;
				if (Selector.CASE_INSENSITIVE_CLASS_NAMES)
					return false;
				if (!Selector._div)
					Selector._div = new Element("div");
				try {
					Selector._div.querySelector(this.expression)
				} catch (e) {
					return false
				}
				return true
			},
			compileMatcher : function() {
				var e = this.expression, ps = Selector.patterns, h = Selector.handlers, c = Selector.criteria, le, p, m, len = ps.length, name;
				if (Selector._cache[e]) {
					this.matcher = Selector._cache[e];
					return
				}
				this.matcher = [ "this.matcher = function(root) {",
						"var r = root, h = Selector.handlers, c = false, n;" ];
				while (e && le != e && /\S/.test(e)) {
					le = e;
					for ( var i = 0; i < len; i++) {
						p = ps[i].re;
						name = ps[i].name;
						if (m = e.match(p)) {
							this.matcher
									.push(Object.isFunction(c[name]) ? c[name]
											(m) : (new Template(c[name]))
											.evaluate(m));
							e = e.replace(m[0], "");
							break
						}
					}
				}
				this.matcher.push("return h.unique(n);\n}");
				eval(this.matcher.join("\n"));
				Selector._cache[this.expression] = this.matcher
			},
			compileXPathMatcher : function() {
				var e = this.expression, ps = Selector.patterns, x = Selector.xpath, le, m, len = ps.length, name;
				if (Selector._cache[e]) {
					this.xpath = Selector._cache[e];
					return
				}
				this.matcher = [ ".//*" ];
				while (e && le != e && /\S/.test(e)) {
					le = e;
					for ( var i = 0; i < len; i++) {
						name = ps[i].name;
						if (m = e.match(ps[i].re)) {
							this.matcher
									.push(Object.isFunction(x[name]) ? x[name]
											(m) : (new Template(x[name]))
											.evaluate(m));
							e = e.replace(m[0], "");
							break
						}
					}
				}
				this.xpath = this.matcher.join("");
				Selector._cache[this.expression] = this.xpath
			},
			findElements : function(root) {
				root = root || document;
				var e = this.expression, results;
				switch (this.mode) {
				case "selectorsAPI":
					if (root !== document) {
						var oldId = root.id, id = $(root).identify();
						id = id.replace(/([\.:])/g, "\\$1");
						e = "#" + id + " " + e
					}
					results = $A(root.querySelectorAll(e)).map(Element.extend);
					root.id = oldId;
					return results;
				case "xpath":
					return document._getElementsByXPath(this.xpath, root);
				default:
					return this.matcher(root)
				}
			},
			match : function(element) {
				this.tokens = [];
				var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
				var le, p, m, len = ps.length, name;
				while (e && le !== e && /\S/.test(e)) {
					le = e;
					for ( var i = 0; i < len; i++) {
						p = ps[i].re;
						name = ps[i].name;
						if (m = e.match(p))
							if (as[name]) {
								this.tokens.push( [ name, Object.clone(m) ]);
								e = e.replace(m[0], "")
							} else
								return this.findElements(document).include(
										element)
					}
				}
				var match = true, name, matches;
				for ( var i = 0, token; token = this.tokens[i]; i++) {
					name = token[0], matches = token[1];
					if (!Selector.assertions[name](element, matches)) {
						match = false;
						break
					}
				}
				return match
			},
			toString : function() {
				return this.expression
			},
			inspect : function() {
				return "#<Selector:" + this.expression.inspect() + ">"
			}
		});
if (Prototype.BrowserFeatures.SelectorsAPI
		&& document.compatMode === "BackCompat")
	Selector.CASE_INSENSITIVE_CLASS_NAMES = function() {
		var div = document.createElement("div"), span = document
				.createElement("span");
		div.id = "prototype_test_id";
		span.className = "Test";
		div.appendChild(span);
		var isIgnored = div.querySelector("#prototype_test_id .test") !== null;
		div = span = null;
		return isIgnored
	}();
Object
		.extend(
				Selector,
				{
					_cache : {},
					xpath : {
						descendant : "//*",
						child : "/*",
						adjacent : "/following-sibling::*[1]",
						laterSibling : "/following-sibling::*",
						tagName : function(m) {
							if (m[1] == "*")
								return "";
							return "[local-name()='" + m[1].toLowerCase()
									+ "' or local-name()='"
									+ m[1].toUpperCase() + "']"
						},
						className : "[contains(concat(' ', @class, ' '), ' #{1} ')]",
						id : "[@id='#{1}']",
						attrPresence : function(m) {
							m[1] = m[1].toLowerCase();
							return (new Template("[@#{1}]")).evaluate(m)
						},
						attr : function(m) {
							m[1] = m[1].toLowerCase();
							m[3] = m[5] || m[6];
							return (new Template(Selector.xpath.operators[m[2]]))
									.evaluate(m)
						},
						pseudo : function(m) {
							var h = Selector.xpath.pseudos[m[1]];
							if (!h)
								return "";
							if (Object.isFunction(h))
								return h(m);
							return (new Template(Selector.xpath.pseudos[m[1]]))
									.evaluate(m)
						},
						operators : {
							"=" : "[@#{1}='#{3}']",
							"!=" : "[@#{1}!='#{3}']",
							"^=" : "[starts-with(@#{1}, '#{3}')]",
							"$=" : "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
							"*=" : "[contains(@#{1}, '#{3}')]",
							"~=" : "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
							"|=" : "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
						},
						pseudos : {
							"first-child" : "[not(preceding-sibling::*)]",
							"last-child" : "[not(following-sibling::*)]",
							"only-child" : "[not(preceding-sibling::* or following-sibling::*)]",
							empty : "[count(*) = 0 and (count(text()) = 0)]",
							checked : "[@checked]",
							disabled : "[(@disabled) and (@type!='hidden')]",
							enabled : "[not(@disabled) and (@type!='hidden')]",
							not : function(m) {
								var e = m[6], p = Selector.patterns, x = Selector.xpath, le, v, len = p.length, name;
								var exclusion = [];
								while (e && le != e && /\S/.test(e)) {
									le = e;
									for ( var i = 0; i < len; i++) {
										name = p[i].name;
										if (m = e.match(p[i].re)) {
											v = Object.isFunction(x[name]) ? x[name]
													(m)
													: (new Template(x[name]))
															.evaluate(m);
											exclusion
													.push("("
															+ v
																	.substring(
																			1,
																			v.length - 1)
															+ ")");
											e = e.replace(m[0], "");
											break
										}
									}
								}
								return "[not(" + exclusion.join(" and ") + ")]"
							},
							"nth-child" : function(m) {
								return Selector.xpath.pseudos.nth(
										"(count(./preceding-sibling::*) + 1) ",
										m)
							},
							"nth-last-child" : function(m) {
								return Selector.xpath.pseudos.nth(
										"(count(./following-sibling::*) + 1) ",
										m)
							},
							"nth-of-type" : function(m) {
								return Selector.xpath.pseudos.nth(
										"position() ", m)
							},
							"nth-last-of-type" : function(m) {
								return Selector.xpath.pseudos.nth(
										"(last() + 1 - position()) ", m)
							},
							"first-of-type" : function(m) {
								m[6] = "1";
								return Selector.xpath.pseudos["nth-of-type"](m)
							},
							"last-of-type" : function(m) {
								m[6] = "1";
								return Selector.xpath.pseudos["nth-last-of-type"]
										(m)
							},
							"only-of-type" : function(m) {
								var p = Selector.xpath.pseudos;
								return p["first-of-type"](m)
										+ p["last-of-type"](m)
							},
							nth : function(fragment, m) {
								var mm, formula = m[6], predicate;
								if (formula == "even")
									formula = "2n+0";
								if (formula == "odd")
									formula = "2n+1";
								if (mm = formula.match(/^(\d+)$/))
									return "[" + fragment + "= " + mm[1] + "]";
								if (mm = formula
										.match(/^(-?\d*)?n(([+-])(\d+))?/)) {
									if (mm[1] == "-")
										mm[1] = -1;
									var a = mm[1] ? Number(mm[1]) : 1;
									var b = mm[2] ? Number(mm[2]) : 0;
									predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and "
											+ "((#{fragment} - #{b}) div #{a} >= 0)]";
									return (new Template(predicate)).evaluate( {
										fragment : fragment,
										a : a,
										b : b
									})
								}
							}
						}
					},
					criteria : {
						tagName : 'n = h.tagName(n, r, "#{1}", c);      c = false;',
						className : 'n = h.className(n, r, "#{1}", c);    c = false;',
						id : 'n = h.id(n, r, "#{1}", c);           c = false;',
						attrPresence : 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
						attr : function(m) {
							m[3] = m[5] || m[6];
							return (new Template(
									'n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;'))
									.evaluate(m)
						},
						pseudo : function(m) {
							if (m[6])
								m[6] = m[6].replace(/"/g, '\\"');
							return (new Template(
									'n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;'))
									.evaluate(m)
						},
						descendant : 'c = "descendant";',
						child : 'c = "child";',
						adjacent : 'c = "adjacent";',
						laterSibling : 'c = "laterSibling";'
					},
					patterns : [
							{
								name : "laterSibling",
								re : /^\s*~\s*/
							},
							{
								name : "child",
								re : /^\s*>\s*/
							},
							{
								name : "adjacent",
								re : /^\s*\+\s*/
							},
							{
								name : "descendant",
								re : /^\s/
							},
							{
								name : "tagName",
								re : /^\s*(\*|[\w\-]+)(\b|$)?/
							},
							{
								name : "id",
								re : /^#([\w\-\*]+)(\b|$)/
							},
							{
								name : "className",
								re : /^\.([\w\-\*]+)(\b|$)/
							},
							{
								name : "pseudo",
								re : /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/
							},
							{
								name : "attrPresence",
								re : /^\[((?:[\w-]+:)?[\w-]+)\]/
							},
							{
								name : "attr",
								re : /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
							} ],
					assertions : {
						tagName : function(element, matches) {
							return matches[1].toUpperCase() == element.tagName
									.toUpperCase()
						},
						className : function(element, matches) {
							return Element.hasClassName(element, matches[1])
						},
						id : function(element, matches) {
							return element.id === matches[1]
						},
						attrPresence : function(element, matches) {
							return Element.hasAttribute(element, matches[1])
						},
						attr : function(element, matches) {
							var nodeValue = Element.readAttribute(element,
									matches[1]);
							return nodeValue
									&& Selector.operators[matches[2]]
											(nodeValue, matches[5]
													|| matches[6])
						}
					},
					handlers : {
						concat : function(a, b) {
							for ( var i = 0, node; node = b[i]; i++)
								a.push(node);
							return a
						},
						mark : function(nodes) {
							var _true = Prototype.emptyFunction;
							for ( var i = 0, node; node = nodes[i]; i++)
								node._countedByPrototype = _true;
							return nodes
						},
						unmark : function() {
							var PROPERTIES_ATTRIBUTES_MAP = function() {
								var el = document.createElement("div"), isBuggy = false, propName = "_countedByPrototype", value = "x";
								el[propName] = value;
								isBuggy = el.getAttribute(propName) === value;
								el = null;
								return isBuggy
							}();
							return PROPERTIES_ATTRIBUTES_MAP ? function(nodes) {
								for ( var i = 0, node; node = nodes[i]; i++)
									node.removeAttribute("_countedByPrototype");
								return nodes
							}
									: function(nodes) {
										for ( var i = 0, node; node = nodes[i]; i++)
											node._countedByPrototype = void 0;
										return nodes
									}
						}(),
						index : function(parentNode, reverse, ofType) {
							parentNode._countedByPrototype = Prototype.emptyFunction;
							if (reverse)
								for ( var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
									var node = nodes[i];
									if (node.nodeType == 1
											&& (!ofType || node._countedByPrototype))
										node.nodeIndex = j++
								}
							else
								for ( var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
									if (node.nodeType == 1
											&& (!ofType || node._countedByPrototype))
										node.nodeIndex = j++
						},
						unique : function(nodes) {
							if (nodes.length == 0)
								return nodes;
							var results = [], n;
							for ( var i = 0, l = nodes.length; i < l; i++)
								if (typeof (n = nodes[i])._countedByPrototype == "undefined") {
									n._countedByPrototype = Prototype.emptyFunction;
									results.push(Element.extend(n))
								}
							return Selector.handlers.unmark(results)
						},
						descendant : function(nodes) {
							var h = Selector.handlers;
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								h.concat(results, node
										.getElementsByTagName("*"));
							return results
						},
						child : function(nodes) {
							var h = Selector.handlers;
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								for ( var j = 0, child; child = node.childNodes[j]; j++)
									if (child.nodeType == 1
											&& child.tagName != "!")
										results.push(child);
							return results
						},
						adjacent : function(nodes) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++) {
								var next = this.nextElementSibling(node);
								if (next)
									results.push(next)
							}
							return results
						},
						laterSibling : function(nodes) {
							var h = Selector.handlers;
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								h.concat(results, Element.nextSiblings(node));
							return results
						},
						nextElementSibling : function(node) {
							while (node = node.nextSibling)
								if (node.nodeType == 1)
									return node;
							return null
						},
						previousElementSibling : function(node) {
							while (node = node.previousSibling)
								if (node.nodeType == 1)
									return node;
							return null
						},
						tagName : function(nodes, root, tagName, combinator) {
							var uTagName = tagName.toUpperCase();
							var results = [], h = Selector.handlers;
							if (nodes) {
								if (combinator) {
									if (combinator == "descendant") {
										for ( var i = 0, node; node = nodes[i]; i++)
											h
													.concat(
															results,
															node
																	.getElementsByTagName(tagName));
										return results
									} else
										nodes = this[combinator](nodes);
									if (tagName == "*")
										return nodes
								}
								for ( var i = 0, node; node = nodes[i]; i++)
									if (node.tagName.toUpperCase() === uTagName)
										results.push(node);
								return results
							} else
								return root.getElementsByTagName(tagName)
						},
						id : function(nodes, root, id, combinator) {
							var targetNode = $(id), h = Selector.handlers;
							if (root == document) {
								if (!targetNode)
									return [];
								if (!nodes)
									return [ targetNode ]
							} else if (!root.sourceIndex
									|| root.sourceIndex < 1) {
								var nodes = root.getElementsByTagName("*");
								for ( var j = 0, node; node = nodes[j]; j++)
									if (node.id === id)
										return [ node ]
							}
							if (nodes) {
								if (combinator)
									if (combinator == "child")
										for ( var i = 0, node; node = nodes[i]; i++) {
											if (targetNode.parentNode == node)
												return [ targetNode ]
										}
									else if (combinator == "descendant")
										for ( var i = 0, node; node = nodes[i]; i++) {
											if (Element.descendantOf(
													targetNode, node))
												return [ targetNode ]
										}
									else if (combinator == "adjacent")
										for ( var i = 0, node; node = nodes[i]; i++) {
											if (Selector.handlers
													.previousElementSibling(targetNode) == node)
												return [ targetNode ]
										}
									else
										nodes = h[combinator](nodes);
								for ( var i = 0, node; node = nodes[i]; i++)
									if (node == targetNode)
										return [ targetNode ];
								return []
							}
							return targetNode
									&& Element.descendantOf(targetNode, root) ? [ targetNode ]
									: []
						},
						className : function(nodes, root, className, combinator) {
							if (nodes && combinator)
								nodes = this[combinator](nodes);
							return Selector.handlers.byClassName(nodes, root,
									className)
						},
						byClassName : function(nodes, root, className) {
							if (!nodes)
								nodes = Selector.handlers.descendant( [ root ]);
							var needle = " " + className + " ";
							for ( var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
								nodeClassName = node.className;
								if (nodeClassName.length == 0)
									continue;
								if (nodeClassName == className
										|| (" " + nodeClassName + " ")
												.include(needle))
									results.push(node)
							}
							return results
						},
						attrPresence : function(nodes, root, attr, combinator) {
							if (!nodes)
								nodes = root.getElementsByTagName("*");
							if (nodes && combinator)
								nodes = this[combinator](nodes);
							var results = [];
							for ( var i = 0, node; node = nodes[i]; i++)
								if (Element.hasAttribute(node, attr))
									results.push(node);
							return results
						},
						attr : function(nodes, root, attr, value, operator,
								combinator) {
							if (!nodes)
								nodes = root.getElementsByTagName("*");
							if (nodes && combinator)
								nodes = this[combinator](nodes);
							var handler = Selector.operators[operator], results = [];
							for ( var i = 0, node; node = nodes[i]; i++) {
								var nodeValue = Element.readAttribute(node,
										attr);
								if (nodeValue === null)
									continue;
								if (handler(nodeValue, value))
									results.push(node)
							}
							return results
						},
						pseudo : function(nodes, name, value, root, combinator) {
							if (nodes && combinator)
								nodes = this[combinator](nodes);
							if (!nodes)
								nodes = root.getElementsByTagName("*");
							return Selector.pseudos[name](nodes, value, root)
						}
					},
					pseudos : {
						"first-child" : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++) {
								if (Selector.handlers
										.previousElementSibling(node))
									continue;
								results.push(node)
							}
							return results
						},
						"last-child" : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++) {
								if (Selector.handlers.nextElementSibling(node))
									continue;
								results.push(node)
							}
							return results
						},
						"only-child" : function(nodes, value, root) {
							var h = Selector.handlers;
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								if (!h.previousElementSibling(node)
										&& !h.nextElementSibling(node))
									results.push(node);
							return results
						},
						"nth-child" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, formula, root)
						},
						"nth-last-child" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, formula, root,
									true)
						},
						"nth-of-type" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, formula, root,
									false, true)
						},
						"nth-last-of-type" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, formula, root,
									true, true)
						},
						"first-of-type" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, "1", root,
									false, true)
						},
						"last-of-type" : function(nodes, formula, root) {
							return Selector.pseudos.nth(nodes, "1", root, true,
									true)
						},
						"only-of-type" : function(nodes, formula, root) {
							var p = Selector.pseudos;
							return p["last-of-type"](p["first-of-type"](nodes,
									formula, root), formula, root)
						},
						getIndices : function(a, b, total) {
							if (a == 0)
								return b > 0 ? [ b ] : [];
							return $R(1, total).inject( [], function(memo, i) {
								if (0 == (i - b) % a && (i - b) / a >= 0)
									memo.push(i);
								return memo
							})
						},
						nth : function(nodes, formula, root, reverse, ofType) {
							if (nodes.length == 0)
								return [];
							if (formula == "even")
								formula = "2n+0";
							if (formula == "odd")
								formula = "2n+1";
							var h = Selector.handlers, results = [], indexed = [], m;
							h.mark(nodes);
							for ( var i = 0, node; node = nodes[i]; i++)
								if (!node.parentNode._countedByPrototype) {
									h.index(node.parentNode, reverse, ofType);
									indexed.push(node.parentNode)
								}
							if (formula.match(/^\d+$/)) {
								formula = Number(formula);
								for ( var i = 0, node; node = nodes[i]; i++)
									if (node.nodeIndex == formula)
										results.push(node)
							} else if (m = formula
									.match(/^(-?\d*)?n(([+-])(\d+))?/)) {
								if (m[1] == "-")
									m[1] = -1;
								var a = m[1] ? Number(m[1]) : 1;
								var b = m[2] ? Number(m[2]) : 0;
								var indices = Selector.pseudos.getIndices(a, b,
										nodes.length);
								for ( var i = 0, node, l = indices.length; node = nodes[i]; i++)
									for ( var j = 0; j < l; j++)
										if (node.nodeIndex == indices[j])
											results.push(node)
							}
							h.unmark(nodes);
							h.unmark(indexed);
							return results
						},
						empty : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++) {
								if (node.tagName == "!" || node.firstChild)
									continue;
								results.push(node)
							}
							return results
						},
						not : function(nodes, selector, root) {
							var h = Selector.handlers, selectorType, m;
							var exclusions = (new Selector(selector))
									.findElements(root);
							h.mark(exclusions);
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								if (!node._countedByPrototype)
									results.push(node);
							h.unmark(exclusions);
							return results
						},
						enabled : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								if (!node.disabled
										&& (!node.type || node.type !== "hidden"))
									results.push(node);
							return results
						},
						disabled : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								if (node.disabled)
									results.push(node);
							return results
						},
						checked : function(nodes, value, root) {
							for ( var i = 0, results = [], node; node = nodes[i]; i++)
								if (node.checked)
									results.push(node);
							return results
						}
					},
					operators : {
						"=" : function(nv, v) {
							return nv == v
						},
						"!=" : function(nv, v) {
							return nv != v
						},
						"^=" : function(nv, v) {
							return nv == v || nv && nv.startsWith(v)
						},
						"$=" : function(nv, v) {
							return nv == v || nv && nv.endsWith(v)
						},
						"*=" : function(nv, v) {
							return nv == v || nv && nv.include(v)
						},
						"~=" : function(nv, v) {
							return (" " + nv + " ").include(" " + v + " ")
						},
						"|=" : function(nv, v) {
							return ("-" + (nv || "").toUpperCase() + "-")
									.include("-" + (v || "").toUpperCase()
											+ "-")
						}
					},
					split : function(expression) {
						var expressions = [];
						expression.scan(
								/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/,
								function(m) {
									expressions.push(m[1].strip())
								});
						return expressions
					},
					matchElements : function(elements, expression) {
						var matches = $$(expression), h = Selector.handlers;
						h.mark(matches);
						for ( var i = 0, results = [], element; element = elements[i]; i++)
							if (element._countedByPrototype)
								results.push(element);
						h.unmark(matches);
						return results
					},
					findElement : function(elements, expression, index) {
						if (Object.isNumber(expression)) {
							index = expression;
							expression = false
						}
						return Selector.matchElements(elements, expression
								|| "*")[index || 0]
					},
					findChildElements : function(element, expressions) {
						expressions = Selector.split(expressions.join(","));
						var results = [], h = Selector.handlers;
						for ( var i = 0, l = expressions.length, selector; i < l; i++) {
							selector = new Selector(expressions[i].strip());
							h.concat(results, selector.findElements(element))
						}
						return l > 1 ? h.unique(results) : results
					}
				});
if (Prototype.Browser.IE)
	Object.extend(Selector.handlers, {
		concat : function(a, b) {
			for ( var i = 0, node; node = b[i]; i++)
				if (node.tagName !== "!")
					a.push(node);
			return a
		}
	});
function $$() {
	return Selector.findChildElements(document, $A(arguments))
}
var Form = {
	reset : function(form) {
		form = $(form);
		form.reset();
		return form
	},
	serializeElements : function(elements, options) {
		if (typeof options != "object")
			options = {
				hash : !!options
			};
		else if (Object.isUndefined(options.hash))
			options.hash = true;
		var key, value, submitted = false, submit = options.submit;
		var data = elements.inject( {}, function(result, element) {
			if (!element.disabled && element.name) {
				key = element.name;
				value = $(element).getValue();
				if (value != null
						&& element.type != "file"
						&& (element.type != "submit" || !submitted
								&& submit !== false
								&& (!submit || key == submit)
								&& (submitted = true)))
					if (key in result) {
						if (!Object.isArray(result[key]))
							result[key] = [ result[key] ];
						result[key].push(value)
					} else
						result[key] = value
			}
			return result
		});
		return options.hash ? data : Object.toQueryString(data)
	}
};
Form.Methods = {
	serialize : function(form, options) {
		return Form.serializeElements(Form.getElements(form), options)
	},
	getElements : function(form) {
		var elements = $(form).getElementsByTagName("*"), element, arr = [], serializers = Form.Element.Serializers;
		for ( var i = 0; element = elements[i]; i++)
			arr.push(element);
		return arr.inject( [], function(elements, child) {
			if (serializers[child.tagName.toLowerCase()])
				elements.push(Element.extend(child));
			return elements
		})
	},
	getInputs : function(form, typeName, name) {
		form = $(form);
		var inputs = form.getElementsByTagName("input");
		if (!typeName && !name)
			return $A(inputs).map(Element.extend);
		for ( var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
			var input = inputs[i];
			if (typeName && input.type != typeName || name
					&& input.name != name)
				continue;
			matchingInputs.push(Element.extend(input))
		}
		return matchingInputs
	},
	disable : function(form) {
		form = $(form);
		Form.getElements(form).invoke("disable");
		return form
	},
	enable : function(form) {
		form = $(form);
		Form.getElements(form).invoke("enable");
		return form
	},
	findFirstElement : function(form) {
		var elements = $(form).getElements().findAll(function(element) {
			return "hidden" != element.type && !element.disabled
		});
		var firstByIndex = elements.findAll(function(element) {
			return element.hasAttribute("tabIndex") && element.tabIndex >= 0
		}).sortBy(function(element) {
			return element.tabIndex
		}).first();
		return firstByIndex ? firstByIndex : elements.find(function(element) {
			return /^(?:input|select|textarea)$/i.test(element.tagName)
		})
	},
	focusFirstElement : function(form) {
		form = $(form);
		form.findFirstElement().activate();
		return form
	},
	request : function(form, options) {
		form = $(form), options = Object.clone(options || {});
		var params = options.parameters, action = form.readAttribute("action")
				|| "";
		if (action.blank())
			action = window.location.href;
		options.parameters = form.serialize(true);
		if (params) {
			if (Object.isString(params))
				params = params.toQueryParams();
			Object.extend(options.parameters, params)
		}
		if (form.hasAttribute("method") && !options.method)
			options.method = form.method;
		return new Ajax.Request(action, options)
	}
};
Form.Element = {
	focus : function(element) {
		$(element).focus();
		return element
	},
	select : function(element) {
		$(element).select();
		return element
	}
};
Form.Element.Methods = {
	serialize : function(element) {
		element = $(element);
		if (!element.disabled && element.name) {
			var value = element.getValue();
			if (value != undefined) {
				var pair = {};
				pair[element.name] = value;
				return Object.toQueryString(pair)
			}
		}
		return ""
	},
	getValue : function(element) {
		element = $(element);
		var method = element.tagName.toLowerCase();
		return Form.Element.Serializers[method](element)
	},
	setValue : function(element, value) {
		element = $(element);
		var method = element.tagName.toLowerCase();
		Form.Element.Serializers[method](element, value);
		return element
	},
	clear : function(element) {
		$(element).value = "";
		return element
	},
	present : function(element) {
		return $(element).value != ""
	},
	activate : function(element) {
		element = $(element);
		try {
			element.focus();
			if (element.select
					&& (element.tagName.toLowerCase() != "input" || !/^(?:button|reset|submit)$/i
							.test(element.type)))
				element.select()
		} catch (e) {
		}
		return element
	},
	disable : function(element) {
		element = $(element);
		element.disabled = true;
		return element
	},
	enable : function(element) {
		element = $(element);
		element.disabled = false;
		return element
	}
};
var Field = Form.Element;
var $F = Form.Element.Methods.getValue;
Form.Element.Serializers = {
	input : function(element, value) {
		switch (element.type.toLowerCase()) {
		case "checkbox":
		case "radio":
			return Form.Element.Serializers.inputSelector(element, value);
		default:
			return Form.Element.Serializers.textarea(element, value)
		}
	},
	inputSelector : function(element, value) {
		if (Object.isUndefined(value))
			return element.checked ? element.value : null;
		else
			element.checked = !!value
	},
	textarea : function(element, value) {
		if (Object.isUndefined(value))
			return element.value;
		else
			element.value = value
	},
	select : function(element, value) {
		if (Object.isUndefined(value))
			return this[element.type == "select-one" ? "selectOne"
					: "selectMany"](element);
		else {
			var opt, currentValue, single = !Object.isArray(value);
			for ( var i = 0, length = element.length; i < length; i++) {
				opt = element.options[i];
				currentValue = this.optionValue(opt);
				if (single) {
					if (currentValue == value) {
						opt.selected = true;
						return
					}
				} else
					opt.selected = value.include(currentValue)
			}
		}
	},
	selectOne : function(element) {
		var index = element.selectedIndex;
		return index >= 0 ? this.optionValue(element.options[index]) : null
	},
	selectMany : function(element) {
		var values, length = element.length;
		if (!length)
			return null;
		for ( var i = 0, values = []; i < length; i++) {
			var opt = element.options[i];
			if (opt.selected)
				values.push(this.optionValue(opt))
		}
		return values
	},
	optionValue : function(opt) {
		return Element.extend(opt).hasAttribute("value") ? opt.value : opt.text
	}
};
Abstract.TimedObserver = Class
		.create(
				PeriodicalExecuter,
				{
					initialize : function($super, element, frequency, callback) {
						$super(callback, frequency);
						this.element = $(element);
						this.lastValue = this.getValue()
					},
					execute : function() {
						var value = this.getValue();
						if (Object.isString(this.lastValue)
								&& Object.isString(value) ? this.lastValue != value
								: String(this.lastValue) != String(value)) {
							this.callback(this.element, value);
							this.lastValue = value
						}
					}
				});
Form.Element.Observer = Class.create(Abstract.TimedObserver, {
	getValue : function() {
		return Form.Element.getValue(this.element)
	}
});
Form.Observer = Class.create(Abstract.TimedObserver, {
	getValue : function() {
		return Form.serialize(this.element)
	}
});
Abstract.EventObserver = Class
		.create( {
			initialize : function(element, callback) {
				this.element = $(element);
				this.callback = callback;
				this.lastValue = this.getValue();
				if (this.element.tagName.toLowerCase() == "form")
					this.registerFormCallbacks();
				else
					this.registerCallback(this.element)
			},
			onElementEvent : function() {
				var value = this.getValue();
				if (this.lastValue != value) {
					this.callback(this.element, value);
					this.lastValue = value
				}
			},
			registerFormCallbacks : function() {
				Form.getElements(this.element)
						.each(this.registerCallback, this)
			},
			registerCallback : function(element) {
				if (element.type)
					switch (element.type.toLowerCase()) {
					case "checkbox":
					case "radio":
						Event.observe(element, "click", this.onElementEvent
								.bind(this));
						break;
					default:
						Event.observe(element, "change", this.onElementEvent
								.bind(this));
						break
					}
			}
		});
Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
	getValue : function() {
		return Form.Element.getValue(this.element)
	}
});
Form.EventObserver = Class.create(Abstract.EventObserver, {
	getValue : function() {
		return Form.serialize(this.element)
	}
});
(function() {
	var Event = {
		KEY_BACKSPACE : 8,
		KEY_TAB : 9,
		KEY_RETURN : 13,
		KEY_ESC : 27,
		KEY_LEFT : 37,
		KEY_UP : 38,
		KEY_RIGHT : 39,
		KEY_DOWN : 40,
		KEY_DELETE : 46,
		KEY_HOME : 36,
		KEY_END : 35,
		KEY_PAGEUP : 33,
		KEY_PAGEDOWN : 34,
		KEY_INSERT : 45,
		cache : {}
	};
	var docEl = document.documentElement;
	var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = "onmouseenter" in docEl
			&& "onmouseleave" in docEl;
	var _isButton;
	if (Prototype.Browser.IE) {
		var buttonMap = {
			0 : 1,
			1 : 4,
			2 : 2
		};
		_isButton = function(event, code) {
			return event.button === buttonMap[code]
		}
	} else if (Prototype.Browser.WebKit)
		_isButton = function(event, code) {
			switch (code) {
			case 0:
				return event.which == 1 && !event.metaKey;
			case 1:
				return event.which == 1 && event.metaKey;
			default:
				return false
			}
		};
	else
		_isButton = function(event, code) {
			return event.which ? event.which === code + 1
					: event.button === code
		};
	function isLeftClick(event) {
		return _isButton(event, 0)
	}
	function isMiddleClick(event) {
		return _isButton(event, 1)
	}
	function isRightClick(event) {
		return _isButton(event, 2)
	}
	function element(event) {
		event = Event.extend(event);
		var node = event.target, type = event.type, currentTarget = event.currentTarget;
		if (currentTarget && currentTarget.tagName)
			if (type === "load" || type === "error" || type === "click"
					&& currentTarget.tagName.toLowerCase() === "input"
					&& currentTarget.type === "radio")
				node = currentTarget;
		if (node.nodeType == Node.TEXT_NODE)
			node = node.parentNode;
		return Element.extend(node)
	}
	function findElement(event, expression) {
		var element = Event.element(event);
		if (!expression)
			return element;
		var elements = [ element ].concat(element.ancestors());
		return Selector.findElement(elements, expression, 0)
	}
	function pointer(event) {
		return {
			x : pointerX(event),
			y : pointerY(event)
		}
	}
	function pointerX(event) {
		var docElement = document.documentElement, body = document.body || {
			scrollLeft : 0
		};
		return event.pageX || event.clientX
				+ (docElement.scrollLeft || body.scrollLeft)
				- (docElement.clientLeft || 0)
	}
	function pointerY(event) {
		var docElement = document.documentElement, body = document.body || {
			scrollTop : 0
		};
		return event.pageY || event.clientY
				+ (docElement.scrollTop || body.scrollTop)
				- (docElement.clientTop || 0)
	}
	function stop(event) {
		Event.extend(event);
		event.preventDefault();
		event.stopPropagation();
		event.stopped = true
	}
	Event.Methods = {
		isLeftClick : isLeftClick,
		isMiddleClick : isMiddleClick,
		isRightClick : isRightClick,
		element : element,
		findElement : findElement,
		pointer : pointer,
		pointerX : pointerX,
		pointerY : pointerY,
		stop : stop
	};
	var methods = Object.keys(Event.Methods).inject( {}, function(m, name) {
		m[name] = Event.Methods[name].methodize();
		return m
	});
	if (Prototype.Browser.IE) {
		function _relatedTarget(event) {
			var element;
			switch (event.type) {
			case "mouseover":
				element = event.fromElement;
				break;
			case "mouseout":
				element = event.toElement;
				break;
			default:
				return null
			}
			return Element.extend(element)
		}
		Object.extend(methods, {
			stopPropagation : function() {
				this.cancelBubble = true
			},
			preventDefault : function() {
				this.returnValue = false
			},
			inspect : function() {
				return "[object Event]"
			}
		});
		Event.extend = function(event, element) {
			if (!event)
				return false;
			if (event._extendedByPrototype)
				return event;
			event._extendedByPrototype = Prototype.emptyFunction;
			var pointer = Event.pointer(event);
			Object.extend(event, {
				target : event.srcElement || element,
				relatedTarget : _relatedTarget(event),
				pageX : pointer.x,
				pageY : pointer.y
			});
			return Object.extend(event, methods)
		}
	} else {
		Event.prototype = window.Event.prototype
				|| document.createEvent("HTMLEvents").__proto__;
		Object.extend(Event.prototype, methods);
		Event.extend = Prototype.K
	}
	function _createResponder(element, eventName, handler) {
		var registry = Element.retrieve(element, "prototype_event_registry");
		if (Object.isUndefined(registry)) {
			CACHE.push(element);
			registry = Element.retrieve(element, "prototype_event_registry",
					$H())
		}
		var respondersForEvent = registry.get(eventName);
		if (Object.isUndefined(respondersForEvent)) {
			respondersForEvent = [];
			registry.set(eventName, respondersForEvent)
		}
		if (respondersForEvent.pluck("handler").include(handler))
			return false;
		var responder;
		if (eventName.include(":"))
			responder = function(event) {
				if (Object.isUndefined(event.eventName))
					return false;
				if (event.eventName !== eventName)
					return false;
				Event.extend(event, element);
				handler.call(element, event)
			};
		else if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED
				&& (eventName === "mouseenter" || eventName === "mouseleave")) {
			if (eventName === "mouseenter" || eventName === "mouseleave")
				responder = function(event) {
					Event.extend(event, element);
					var parent = event.relatedTarget;
					while (parent && parent !== element)
						try {
							parent = parent.parentNode
						} catch (e) {
							parent = element
						}
					if (parent === element)
						return;
					handler.call(element, event)
				}
		} else
			responder = function(event) {
				Event.extend(event, element);
				handler.call(element, event)
			};
		responder.handler = handler;
		respondersForEvent.push(responder);
		return responder
	}
	function _destroyCache() {
		for ( var i = 0, length = CACHE.length; i < length; i++) {
			Event.stopObserving(CACHE[i]);
			CACHE[i] = null
		}
	}
	var CACHE = [];
	if (Prototype.Browser.IE)
		window.attachEvent("onunload", _destroyCache);
	if (Prototype.Browser.WebKit)
		window.addEventListener("unload", Prototype.emptyFunction, false);
	var _getDOMEventName = Prototype.K;
	if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED)
		_getDOMEventName = function(eventName) {
			var translations = {
				mouseenter : "mouseover",
				mouseleave : "mouseout"
			};
			return eventName in translations ? translations[eventName]
					: eventName
		};
	function observe(element, eventName, handler) {
		element = $(element);
		var responder = _createResponder(element, eventName, handler);
		if (!responder)
			return element;
		if (eventName.include(":"))
			if (element.addEventListener)
				element.addEventListener("dataavailable", responder, false);
			else {
				element.attachEvent("ondataavailable", responder);
				element.attachEvent("onfilterchange", responder)
			}
		else {
			var actualEventName = _getDOMEventName(eventName);
			if (element.addEventListener)
				element.addEventListener(actualEventName, responder, false);
			else
				element.attachEvent("on" + actualEventName, responder)
		}
		return element
	}
	function stopObserving(element, eventName, handler) {
		element = $(element);
		var registry = Element.retrieve(element, "prototype_event_registry");
		if (Object.isUndefined(registry))
			return element;
		if (eventName && !handler) {
			var responders = registry.get(eventName);
			if (Object.isUndefined(responders))
				return element;
			responders.each(function(r) {
				Element.stopObserving(element, eventName, r.handler)
			});
			return element
		} else if (!eventName) {
			registry.each(function(pair) {
				var eventName = pair.key, responders = pair.value;
				responders.each(function(r) {
					Element.stopObserving(element, eventName, r.handler)
				})
			});
			return element
		}
		var responders = registry.get(eventName);
		if (!responders)
			return;
		var responder = responders.find(function(r) {
			return r.handler === handler
		});
		if (!responder)
			return element;
		var actualEventName = _getDOMEventName(eventName);
		if (eventName.include(":"))
			if (element.removeEventListener)
				element.removeEventListener("dataavailable", responder, false);
			else {
				element.detachEvent("ondataavailable", responder);
				element.detachEvent("onfilterchange", responder)
			}
		else if (element.removeEventListener)
			element.removeEventListener(actualEventName, responder, false);
		else
			element.detachEvent("on" + actualEventName, responder);
		registry.set(eventName, responders.without(responder));
		return element
	}
	function fire(element, eventName, memo, bubble) {
		element = $(element);
		if (Object.isUndefined(bubble))
			bubble = true;
		if (element == document && document.createEvent
				&& !element.dispatchEvent)
			element = document.documentElement;
		var event;
		if (document.createEvent) {
			event = document.createEvent("HTMLEvents");
			event.initEvent("dataavailable", true, true)
		} else {
			event = document.createEventObject();
			event.eventType = bubble ? "ondataavailable" : "onfilterchange"
		}
		event.eventName = eventName;
		event.memo = memo || {};
		if (document.createEvent)
			element.dispatchEvent(event);
		else
			element.fireEvent(event.eventType, event);
		return Event.extend(event)
	}
	Object.extend(Event, Event.Methods);
	Object.extend(Event, {
		fire : fire,
		observe : observe,
		stopObserving : stopObserving
	});
	Element.addMethods( {
		fire : fire,
		observe : observe,
		stopObserving : stopObserving
	});
	Object.extend(document, {
		fire : fire.methodize(),
		observe : observe.methodize(),
		stopObserving : stopObserving.methodize(),
		loaded : false
	});
	if (window.Event)
		Object.extend(window.Event, Event);
	else
		window.Event = Event
})();
(function() {
	var timer;
	function fireContentLoadedEvent() {
		if (document.loaded)
			return;
		if (timer)
			window.clearTimeout(timer);
		document.loaded = true;
		document.fire("dom:loaded")
	}
	function checkReadyState() {
		if (document.readyState === "complete") {
			document.stopObserving("readystatechange", checkReadyState);
			fireContentLoadedEvent()
		}
	}
	function pollDoScroll() {
		try {
			document.documentElement.doScroll("left")
		} catch (e) {
			timer = pollDoScroll.defer();
			return
		}
		fireContentLoadedEvent()
	}
	if (document.addEventListener)
		document.addEventListener("DOMContentLoaded", fireContentLoadedEvent,
				false);
	else {
		document.observe("readystatechange", checkReadyState);
		if (window == top)
			timer = pollDoScroll.defer()
	}
	Event.observe(window, "load", fireContentLoadedEvent)
})();
Element.addMethods();
Hash.toQueryString = Object.toQueryString;
var Toggle = {
	display : Element.toggle
};
Element.Methods.childOf = Element.Methods.descendantOf;
var Insertion = {
	Before : function(element, content) {
		return Element.insert(element, {
			before : content
		})
	},
	Top : function(element, content) {
		return Element.insert(element, {
			top : content
		})
	},
	Bottom : function(element, content) {
		return Element.insert(element, {
			bottom : content
		})
	},
	After : function(element, content) {
		return Element.insert(element, {
			after : content
		})
	}
};
var $continue = new Error(
		'"throw $continue" is deprecated, use "return" instead');
var Position = {
	includeScrollOffsets : false,
	prepare : function() {
		this.deltaX = window.pageXOffset || document.documentElement.scrollLeft
				|| document.body.scrollLeft || 0;
		this.deltaY = window.pageYOffset || document.documentElement.scrollTop
				|| document.body.scrollTop || 0
	},
	within : function(element, x, y) {
		if (this.includeScrollOffsets)
			return this.withinIncludingScrolloffsets(element, x, y);
		this.xcomp = x;
		this.ycomp = y;
		this.offset = Element.cumulativeOffset(element);
		return y >= this.offset[1] && y < this.offset[1] + element.offsetHeight
				&& x >= this.offset[0]
				&& x < this.offset[0] + element.offsetWidth
	},
	withinIncludingScrolloffsets : function(element, x, y) {
		var offsetcache = Element.cumulativeScrollOffset(element);
		this.xcomp = x + offsetcache[0] - this.deltaX;
		this.ycomp = y + offsetcache[1] - this.deltaY;
		this.offset = Element.cumulativeOffset(element);
		return this.ycomp >= this.offset[1]
				&& this.ycomp < this.offset[1] + element.offsetHeight
				&& this.xcomp >= this.offset[0]
				&& this.xcomp < this.offset[0] + element.offsetWidth
	},
	overlap : function(mode, element) {
		if (!mode)
			return 0;
		if (mode == "vertical")
			return (this.offset[1] + element.offsetHeight - this.ycomp)
					/ element.offsetHeight;
		if (mode == "horizontal")
			return (this.offset[0] + element.offsetWidth - this.xcomp)
					/ element.offsetWidth
	},
	cumulativeOffset : Element.Methods.cumulativeOffset,
	positionedOffset : Element.Methods.positionedOffset,
	absolutize : function(element) {
		Position.prepare();
		return Element.absolutize(element)
	},
	relativize : function(element) {
		Position.prepare();
		return Element.relativize(element)
	},
	realOffset : Element.Methods.cumulativeScrollOffset,
	offsetParent : Element.Methods.getOffsetParent,
	page : Element.Methods.viewportOffset,
	clone : function(source, target, options) {
		options = options || {};
		return Element.clonePosition(target, source, options)
	}
};
if (!document.getElementsByClassName)
	document.getElementsByClassName = function(instanceMethods) {
		function iter(name) {
			return name.blank() ? null
					: "[contains(concat(' ', @class, ' '), ' " + name + " ')]"
		}
		instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ? function(
				element, className) {
			className = className.toString().strip();
			var cond = /\s/.test(className) ? $w(className).map(iter).join("")
					: iter(className);
			return cond ? document._getElementsByXPath(".//*" + cond, element)
					: []
		}
				: function(element, className) {
					className = className.toString().strip();
					var elements = [], classNames = /\s/.test(className) ? $w(className)
							: null;
					if (!classNames && !className)
						return elements;
					var nodes = $(element).getElementsByTagName("*");
					className = " " + className + " ";
					for ( var i = 0, child, cn; child = nodes[i]; i++)
						if (child.className
								&& (cn = " " + child.className + " ")
								&& (cn.include(className) || classNames
										&& classNames.all(function(name) {
											return !name.toString().blank()
													&& cn.include(" " + name
															+ " ")
										})))
							elements.push(Element.extend(child));
					return elements
				};
		return function(className, parentElement) {
			return $(parentElement || document.body).getElementsByClassName(
					className)
		}
	}(Element.Methods);
Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
	initialize : function(element) {
		this.element = $(element)
	},
	_each : function(iterator) {
		this.element.className.split(/\s+/).select(function(name) {
			return name.length > 0
		})._each(iterator)
	},
	set : function(className) {
		this.element.className = className
	},
	add : function(classNameToAdd) {
		if (this.include(classNameToAdd))
			return;
		this.set($A(this).concat(classNameToAdd).join(" "))
	},
	remove : function(classNameToRemove) {
		if (!this.include(classNameToRemove))
			return;
		this.set($A(this).without(classNameToRemove).join(" "))
	},
	toString : function() {
		return $A(this).join(" ")
	}
};
Object.extend(Element.ClassNames.prototype, Enumerable);
String.prototype.parseColor = function() {
	var color = "#";
	if (this.slice(0, 4) == "rgb(") {
		var cols = this.slice(4, this.length - 1).split(",");
		var i = 0;
		do
			color += parseInt(cols[i]).toColorPart();
		while (++i < 3)
	} else if (this.slice(0, 1) == "#") {
		if (this.length == 4)
			for ( var i = 1; i < 4; i++)
				color += (this.charAt(i) + this.charAt(i)).toLowerCase();
		if (this.length == 7)
			color = this.toLowerCase()
	}
	return color.length == 7 ? color : arguments[0] || this
};
Element.collectTextNodes = function(element) {
	return $A($(element).childNodes).collect(
			function(node) {
				return node.nodeType == 3 ? node.nodeValue : node
						.hasChildNodes() ? Element.collectTextNodes(node) : ""
			}).flatten().join("")
};
Element.collectTextNodesIgnoreClass = function(element, className) {
	return $A($(element).childNodes).collect(
			function(node) {
				return node.nodeType == 3 ? node.nodeValue : node
						.hasChildNodes()
						&& !Element.hasClassName(node, className) ? Element
						.collectTextNodesIgnoreClass(node, className) : ""
			}).flatten().join("")
};
Element.setContentZoom = function(element, percent) {
	element = $(element);
	element.setStyle( {
		fontSize : percent / 100 + "em"
	});
	if (Prototype.Browser.WebKit)
		window.scrollBy(0, 0);
	return element
};
Element.getInlineOpacity = function(element) {
	return $(element).style.opacity || ""
};
Element.forceRerendering = function(element) {
	try {
		element = $(element);
		var n = document.createTextNode(" ");
		element.appendChild(n);
		element.removeChild(n)
	} catch (e) {
	}
};
var Effect = {
	_elementDoesNotExistError : {
		name : "ElementDoesNotExistError",
		message : "The specified DOM element does not exist, but is required for this effect to operate"
	},
	Transitions : {
		linear : Prototype.K,
		sinoidal : function(pos) {
			return -Math.cos(pos * Math.PI) / 2 + 0.5
		},
		reverse : function(pos) {
			return 1 - pos
		},
		flicker : function(pos) {
			var pos = -Math.cos(pos * Math.PI) / 4 + 0.75 + Math.random() / 4;
			return pos > 1 ? 1 : pos
		},
		wobble : function(pos) {
			return -Math.cos(pos * Math.PI * 9 * pos) / 2 + 0.5
		},
		pulse : function(pos, pulses) {
			return -Math.cos(pos * ((pulses || 5) - 0.5) * 2 * Math.PI) / 2 + 0.5
		},
		spring : function(pos) {
			return 1 - Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)
		},
		none : function(pos) {
			return 0
		},
		full : function(pos) {
			return 1
		}
	},
	DefaultOptions : {
		duration : 1,
		fps : 100,
		sync : false,
		from : 0,
		to : 1,
		delay : 0,
		queue : "parallel"
	},
	tagifyText : function(element) {
		var tagifyStyle = "position:relative";
		if (Prototype.Browser.IE)
			tagifyStyle += ";zoom:1";
		element = $(element);
		$A(element.childNodes).each(
				function(child) {
					if (child.nodeType == 3) {
						child.nodeValue.toArray().each(
								function(character) {
									element.insertBefore((new Element("span", {
										style : tagifyStyle
									})).update(character == " " ? String
											.fromCharCode(160) : character),
											child)
								});
						Element.remove(child)
					}
				})
	},
	multiple : function(element, effect) {
		var elements;
		if ((typeof element == "object" || Object.isFunction(element))
				&& element.length)
			elements = element;
		else
			elements = $(element).childNodes;
		var options = Object.extend( {
			speed : 0.1,
			delay : 0
		}, arguments[2] || {});
		var masterDelay = options.delay;
		$A(elements).each(function(element, index) {
			new effect(element, Object.extend(options, {
				delay : index * options.speed + masterDelay
			}))
		})
	},
	PAIRS : {
		slide : [ "SlideDown", "SlideUp" ],
		blind : [ "BlindDown", "BlindUp" ],
		appear : [ "Appear", "Fade" ]
	},
	toggle : function(element, effect, options) {
		element = $(element);
		effect = (effect || "appear").toLowerCase();
		return Effect[Effect.PAIRS[effect][element.visible() ? 1 : 0]](element,
				Object.extend( {
					queue : {
						position : "end",
						scope : element.id || "global",
						limit : 1
					}
				}, options || {}))
	}
};
Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;
Effect.ScopedQueue = Class
		.create(
				Enumerable,
				{
					initialize : function() {
						this.effects = [];
						this.interval = null
					},
					_each : function(iterator) {
						this.effects._each(iterator)
					},
					add : function(effect) {
						var timestamp = (new Date).getTime();
						var position = Object.isString(effect.options.queue) ? effect.options.queue
								: effect.options.queue.position;
						switch (position) {
						case "front":
							this.effects.findAll(function(e) {
								return e.state == "idle"
							}).each(function(e) {
								e.startOn += effect.finishOn;
								e.finishOn += effect.finishOn
							});
							break;
						case "with-last":
							timestamp = this.effects.pluck("startOn").max()
									|| timestamp;
							break;
						case "end":
							timestamp = this.effects.pluck("finishOn").max()
									|| timestamp;
							break
						}
						effect.startOn += timestamp;
						effect.finishOn += timestamp;
						if (!effect.options.queue.limit
								|| this.effects.length < effect.options.queue.limit)
							this.effects.push(effect);
						if (!this.interval)
							this.interval = setInterval(this.loop.bind(this),
									15)
					},
					remove : function(effect) {
						this.effects = this.effects.reject(function(e) {
							return e == effect
						});
						if (this.effects.length == 0) {
							clearInterval(this.interval);
							this.interval = null
						}
					},
					loop : function() {
						var timePos = (new Date).getTime();
						for ( var i = 0, len = this.effects.length; i < len; i++)
							this.effects[i] && this.effects[i].loop(timePos)
					}
				});
Effect.Queues = {
	instances : $H(),
	get : function(queueName) {
		if (!Object.isString(queueName))
			return queueName;
		return this.instances.get(queueName)
				|| this.instances.set(queueName, new Effect.ScopedQueue)
	}
};
Effect.Queue = Effect.Queues.get("global");
Effect.Base = Class
		.create( {
			position : null,
			start : function(options) {
				if (options && options.transition === false)
					options.transition = Effect.Transitions.linear;
				this.options = Object.extend(Object.extend( {},
						Effect.DefaultOptions), options || {});
				this.currentFrame = 0;
				this.state = "idle";
				this.startOn = this.options.delay * 1E3;
				this.finishOn = this.startOn + this.options.duration * 1E3;
				this.fromToDelta = this.options.to - this.options.from;
				this.totalTime = this.finishOn - this.startOn;
				this.totalFrames = this.options.fps * this.options.duration;
				this.render = function() {
					function dispatch(effect, eventName) {
						if (effect.options[eventName + "Internal"])
							effect.options[eventName + "Internal"](effect);
						if (effect.options[eventName])
							effect.options[eventName](effect)
					}
					return function(pos) {
						if (this.state === "idle") {
							this.state = "running";
							dispatch(this, "beforeSetup");
							if (this.setup)
								this.setup();
							dispatch(this, "afterSetup")
						}
						if (this.state === "running") {
							pos = this.options.transition(pos)
									* this.fromToDelta + this.options.from;
							this.position = pos;
							dispatch(this, "beforeUpdate");
							if (this.update)
								this.update(pos);
							dispatch(this, "afterUpdate")
						}
					}
				}();
				this.event("beforeStart");
				if (!this.options.sync)
					Effect.Queues.get(
							Object.isString(this.options.queue) ? "global"
									: this.options.queue.scope).add(this)
			},
			loop : function(timePos) {
				if (timePos >= this.startOn) {
					if (timePos >= this.finishOn) {
						this.render(1);
						this.cancel();
						this.event("beforeFinish");
						if (this.finish)
							this.finish();
						this.event("afterFinish");
						return
					}
					var pos = (timePos - this.startOn) / this.totalTime, frame = (pos * this.totalFrames)
							.round();
					if (frame > this.currentFrame) {
						this.render(pos);
						this.currentFrame = frame
					}
				}
			},
			cancel : function() {
				if (!this.options.sync)
					Effect.Queues.get(
							Object.isString(this.options.queue) ? "global"
									: this.options.queue.scope).remove(this);
				this.state = "finished"
			},
			event : function(eventName) {
				if (this.options[eventName + "Internal"])
					this.options[eventName + "Internal"](this);
				if (this.options[eventName])
					this.options[eventName](this)
			},
			inspect : function() {
				var data = $H();
				for (property in this)
					if (!Object.isFunction(this[property]))
						data.set(property, this[property]);
				return "#<Effect:" + data.inspect() + ",options:"
						+ $H(this.options).inspect() + ">"
			}
		});
Effect.Parallel = Class.create(Effect.Base, {
	initialize : function(effects) {
		this.effects = effects || [];
		this.start(arguments[1])
	},
	update : function(position) {
		this.effects.invoke("render", position)
	},
	finish : function(position) {
		this.effects.each(function(effect) {
			effect.render(1);
			effect.cancel();
			effect.event("beforeFinish");
			if (effect.finish)
				effect.finish(position);
			effect.event("afterFinish")
		})
	}
});
Effect.Tween = Class
		.create(
				Effect.Base,
				{
					initialize : function(object, from, to) {
						object = Object.isString(object) ? $(object) : object;
						var args = $A(arguments), method = args.last(), options = args.length == 5 ? args[3]
								: null;
						this.method = Object.isFunction(method) ? method
								.bind(object) : Object
								.isFunction(object[method]) ? object[method]
								.bind(object) : function(value) {
							object[method] = value
						};
						this.start(Object.extend( {
							from : from,
							to : to
						}, options || {}))
					},
					update : function(position) {
						this.method(position)
					}
				});
Effect.Event = Class.create(Effect.Base, {
	initialize : function() {
		this.start(Object.extend( {
			duration : 0
		}, arguments[0] || {}))
	},
	update : Prototype.emptyFunction
});
Effect.Opacity = Class.create(Effect.Base, {
	initialize : function(element) {
		this.element = $(element);
		if (!this.element)
			throw Effect._elementDoesNotExistError;
		if (Prototype.Browser.IE && !this.element.currentStyle.hasLayout)
			this.element.setStyle( {
				zoom : 1
			});
		var options = Object.extend( {
			from : this.element.getOpacity() || 0,
			to : 1
		}, arguments[1] || {});
		this.start(options)
	},
	update : function(position) {
		this.element.setOpacity(position)
	}
});
Effect.Move = Class.create(Effect.Base, {
	initialize : function(element) {
		this.element = $(element);
		if (!this.element)
			throw Effect._elementDoesNotExistError;
		var options = Object.extend( {
			x : 0,
			y : 0,
			mode : "relative"
		}, arguments[1] || {});
		this.start(options)
	},
	setup : function() {
		this.element.makePositioned();
		this.originalLeft = parseFloat(this.element.getStyle("left") || "0");
		this.originalTop = parseFloat(this.element.getStyle("top") || "0");
		if (this.options.mode == "absolute") {
			this.options.x = this.options.x - this.originalLeft;
			this.options.y = this.options.y - this.originalTop
		}
	},
	update : function(position) {
		this.element.setStyle( {
			left : (this.options.x * position + this.originalLeft).round()
					+ "px",
			top : (this.options.y * position + this.originalTop).round() + "px"
		})
	}
});
Effect.MoveBy = function(element, toTop, toLeft) {
	return new Effect.Move(element, Object.extend( {
		x : toLeft,
		y : toTop
	}, arguments[3] || {}))
};
Effect.Scale = Class
		.create(
				Effect.Base,
				{
					initialize : function(element, percent) {
						this.element = $(element);
						if (!this.element)
							throw Effect._elementDoesNotExistError;
						var options = Object.extend( {
							scaleX : true,
							scaleY : true,
							scaleContent : true,
							scaleFromCenter : false,
							scaleMode : "box",
							scaleFrom : 100,
							scaleTo : percent
						}, arguments[2] || {});
						this.start(options)
					},
					setup : function() {
						this.restoreAfterFinish = this.options.restoreAfterFinish || false;
						this.elementPositioning = this.element
								.getStyle("position");
						this.originalStyle = {};
						[ "top", "left", "width", "height", "fontSize" ]
								.each(function(k) {
									this.originalStyle[k] = this.element.style[k]
								}.bind(this));
						this.originalTop = this.element.offsetTop;
						this.originalLeft = this.element.offsetLeft;
						var fontSize = this.element.getStyle("font-size")
								|| "100%";
						[ "em", "px", "%", "pt" ].each(function(fontSizeType) {
							if (fontSize.indexOf(fontSizeType) > 0) {
								this.fontSize = parseFloat(fontSize);
								this.fontSizeType = fontSizeType
							}
						}.bind(this));
						this.factor = (this.options.scaleTo - this.options.scaleFrom) / 100;
						this.dims = null;
						if (this.options.scaleMode == "box")
							this.dims = [ this.element.offsetHeight,
									this.element.offsetWidth ];
						if (/^content/.test(this.options.scaleMode))
							this.dims = [ this.element.scrollHeight,
									this.element.scrollWidth ];
						if (!this.dims)
							this.dims = [
									this.options.scaleMode.originalHeight,
									this.options.scaleMode.originalWidth ]
					},
					update : function(position) {
						var currentScale = this.options.scaleFrom / 100
								+ this.factor * position;
						if (this.options.scaleContent && this.fontSize)
							this.element.setStyle( {
								fontSize : this.fontSize * currentScale
										+ this.fontSizeType
							});
						this.setDimensions(this.dims[0] * currentScale,
								this.dims[1] * currentScale)
					},
					finish : function(position) {
						if (this.restoreAfterFinish)
							this.element.setStyle(this.originalStyle)
					},
					setDimensions : function(height, width) {
						var d = {};
						if (this.options.scaleX)
							d.width = width.round() + "px";
						if (this.options.scaleY)
							d.height = height.round() + "px";
						if (this.options.scaleFromCenter) {
							var topd = (height - this.dims[0]) / 2;
							var leftd = (width - this.dims[1]) / 2;
							if (this.elementPositioning == "absolute") {
								if (this.options.scaleY)
									d.top = this.originalTop - topd + "px";
								if (this.options.scaleX)
									d.left = this.originalLeft - leftd + "px"
							} else {
								if (this.options.scaleY)
									d.top = -topd + "px";
								if (this.options.scaleX)
									d.left = -leftd + "px"
							}
						}
						this.element.setStyle(d)
					}
				});
Effect.Highlight = Class.create(Effect.Base, {
	initialize : function(element) {
		this.element = $(element);
		if (!this.element)
			throw Effect._elementDoesNotExistError;
		var options = Object.extend( {
			startcolor : "#ffff99"
		}, arguments[1] || {});
		this.start(options)
	},
	setup : function() {
		if (this.element.getStyle("display") == "none") {
			this.cancel();
			return
		}
		this.oldStyle = {};
		if (!this.options.keepBackgroundImage) {
			this.oldStyle.backgroundImage = this.element
					.getStyle("background-image");
			this.element.setStyle( {
				backgroundImage : "none"
			})
		}
		if (!this.options.endcolor)
			this.options.endcolor = this.element.getStyle("background-color")
					.parseColor("#ffffff");
		if (!this.options.restorecolor)
			this.options.restorecolor = this.element
					.getStyle("background-color");
		this._base = $R(0, 2).map(
				function(i) {
					return parseInt(this.options.startcolor.slice(i * 2 + 1,
							i * 2 + 3), 16)
				}.bind(this));
		this._delta = $R(0, 2).map(
				function(i) {
					return parseInt(this.options.endcolor.slice(i * 2 + 1,
							i * 2 + 3), 16)
							- this._base[i]
				}.bind(this))
	},
	update : function(position) {
		this.element.setStyle( {
			backgroundColor : $R(0, 2).inject(
					"#",
					function(m, v, i) {
						return m
								+ (this._base[i] + this._delta[i] * position)
										.round().toColorPart()
					}.bind(this))
		})
	},
	finish : function() {
		this.element.setStyle(Object.extend(this.oldStyle, {
			backgroundColor : this.options.restorecolor
		}))
	}
});
Effect.ScrollTo = function(element) {
	var options = arguments[1] || {}, scrollOffsets = document.viewport
			.getScrollOffsets(), elementOffsets = $(element).cumulativeOffset();
	if (options.offset)
		elementOffsets[1] += options.offset;
	return new Effect.Tween(null, scrollOffsets.top, elementOffsets[1],
			options, function(p) {
				scrollTo(scrollOffsets.left, p.round())
			})
};
Effect.Fade = function(element) {
	element = $(element);
	var oldOpacity = element.getInlineOpacity();
	var options = Object.extend( {
		from : element.getOpacity() || 1,
		to : 0,
		afterFinishInternal : function(effect) {
			if (effect.options.to != 0)
				return;
			effect.element.hide().setStyle( {
				opacity : oldOpacity
			})
		}
	}, arguments[1] || {});
	return new Effect.Opacity(element, options)
};
Effect.Appear = function(element) {
	element = $(element);
	var options = Object.extend( {
		from : element.getStyle("display") == "none" ? 0
				: element.getOpacity() || 0,
		to : 1,
		afterFinishInternal : function(effect) {
			effect.element.forceRerendering()
		},
		beforeSetup : function(effect) {
			effect.element.setOpacity(effect.options.from).show()
		}
	}, arguments[1] || {});
	return new Effect.Opacity(element, options)
};
Effect.Puff = function(element) {
	element = $(element);
	var oldStyle = {
		opacity : element.getInlineOpacity(),
		position : element.getStyle("position"),
		top : element.style.top,
		left : element.style.left,
		width : element.style.width,
		height : element.style.height
	};
	return new Effect.Parallel( [ new Effect.Scale(element, 200, {
		sync : true,
		scaleFromCenter : true,
		scaleContent : true,
		restoreAfterFinish : true
	}), new Effect.Opacity(element, {
		sync : true,
		to : 0
	}) ], Object.extend( {
		duration : 1,
		beforeSetupInternal : function(effect) {
			Position.absolutize(effect.effects[0].element)
		},
		afterFinishInternal : function(effect) {
			effect.effects[0].element.hide().setStyle(oldStyle)
		}
	}, arguments[1] || {}))
};
Effect.BlindUp = function(element) {
	element = $(element);
	element.makeClipping();
	return new Effect.Scale(element, 0, Object.extend( {
		scaleContent : false,
		scaleX : false,
		restoreAfterFinish : true,
		afterFinishInternal : function(effect) {
			effect.element.hide().undoClipping()
		}
	}, arguments[1] || {}))
};
Effect.BlindDown = function(element) {
	element = $(element);
	var elementDimensions = element.getDimensions();
	return new Effect.Scale(element, 100, Object.extend( {
		scaleContent : false,
		scaleX : false,
		scaleFrom : 0,
		scaleMode : {
			originalHeight : elementDimensions.height,
			originalWidth : elementDimensions.width
		},
		restoreAfterFinish : true,
		afterSetup : function(effect) {
			effect.element.makeClipping().setStyle( {
				height : "0px"
			}).show()
		},
		afterFinishInternal : function(effect) {
			effect.element.undoClipping()
		}
	}, arguments[1] || {}))
};
Effect.SwitchOff = function(element) {
	element = $(element);
	var oldOpacity = element.getInlineOpacity();
	return new Effect.Appear(element, Object.extend( {
		duration : 0.4,
		from : 0,
		transition : Effect.Transitions.flicker,
		afterFinishInternal : function(effect) {
			new Effect.Scale(effect.element, 1, {
				duration : 0.3,
				scaleFromCenter : true,
				scaleX : false,
				scaleContent : false,
				restoreAfterFinish : true,
				beforeSetup : function(effect) {
					effect.element.makePositioned().makeClipping()
				},
				afterFinishInternal : function(effect) {
					effect.element.hide().undoClipping().undoPositioned()
							.setStyle( {
								opacity : oldOpacity
							})
				}
			})
		}
	}, arguments[1] || {}))
};
Effect.DropOut = function(element) {
	element = $(element);
	var oldStyle = {
		top : element.getStyle("top"),
		left : element.getStyle("left"),
		opacity : element.getInlineOpacity()
	};
	return new Effect.Parallel( [ new Effect.Move(element, {
		x : 0,
		y : 100,
		sync : true
	}), new Effect.Opacity(element, {
		sync : true,
		to : 0
	}) ], Object.extend( {
		duration : 0.5,
		beforeSetup : function(effect) {
			effect.effects[0].element.makePositioned()
		},
		afterFinishInternal : function(effect) {
			effect.effects[0].element.hide().undoPositioned()
					.setStyle(oldStyle)
		}
	}, arguments[1] || {}))
};
Effect.Shake = function(element) {
	element = $(element);
	var options = Object.extend( {
		distance : 20,
		duration : 0.5
	}, arguments[1] || {});
	var distance = parseFloat(options.distance);
	var split = parseFloat(options.duration) / 10;
	var oldStyle = {
		top : element.getStyle("top"),
		left : element.getStyle("left")
	};
	return new Effect.Move(element, {
		x : distance,
		y : 0,
		duration : split,
		afterFinishInternal : function(effect) {
			new Effect.Move(effect.element, {
				x : -distance * 2,
				y : 0,
				duration : split * 2,
				afterFinishInternal : function(effect) {
					new Effect.Move(effect.element, {
						x : distance * 2,
						y : 0,
						duration : split * 2,
						afterFinishInternal : function(effect) {
							new Effect.Move(effect.element, {
								x : -distance * 2,
								y : 0,
								duration : split * 2,
								afterFinishInternal : function(effect) {
									new Effect.Move(effect.element, {
										x : distance * 2,
										y : 0,
										duration : split * 2,
										afterFinishInternal : function(effect) {
											new Effect.Move(effect.element, {
												x : -distance,
												y : 0,
												duration : split,
												afterFinishInternal : function(
														effect) {
													effect.element
															.undoPositioned()
															.setStyle(oldStyle)
												}
											})
										}
									})
								}
							})
						}
					})
				}
			})
		}
	})
};
Effect.SlideDown = function(element) {
	element = $(element).cleanWhitespace();
	var oldInnerBottom = element.down().getStyle("bottom");
	var elementDimensions = element.getDimensions();
	return new Effect.Scale(element, 100, Object.extend( {
		scaleContent : false,
		scaleX : false,
		scaleFrom : window.opera ? 0 : 1,
		scaleMode : {
			originalHeight : elementDimensions.height,
			originalWidth : elementDimensions.width
		},
		restoreAfterFinish : true,
		afterSetup : function(effect) {
			effect.element.makePositioned();
			effect.element.down().makePositioned();
			if (window.opera)
				effect.element.setStyle( {
					top : ""
				});
			effect.element.makeClipping().setStyle( {
				height : "0px"
			}).show()
		},
		afterUpdateInternal : function(effect) {
			effect.element.down().setStyle( {
				bottom : effect.dims[0] - effect.element.clientHeight + "px"
			})
		},
		afterFinishInternal : function(effect) {
			effect.element.undoClipping().undoPositioned();
			effect.element.down().undoPositioned().setStyle( {
				bottom : oldInnerBottom
			})
		}
	}, arguments[1] || {}))
};
Effect.SlideUp = function(element) {
	element = $(element).cleanWhitespace();
	var oldInnerBottom = element.down().getStyle("bottom");
	var elementDimensions = element.getDimensions();
	return new Effect.Scale(element, window.opera ? 0 : 1, Object.extend( {
		scaleContent : false,
		scaleX : false,
		scaleMode : "box",
		scaleFrom : 100,
		scaleMode : {
			originalHeight : elementDimensions.height,
			originalWidth : elementDimensions.width
		},
		restoreAfterFinish : true,
		afterSetup : function(effect) {
			effect.element.makePositioned();
			effect.element.down().makePositioned();
			if (window.opera)
				effect.element.setStyle( {
					top : ""
				});
			effect.element.makeClipping().show()
		},
		afterUpdateInternal : function(effect) {
			effect.element.down().setStyle( {
				bottom : effect.dims[0] - effect.element.clientHeight + "px"
			})
		},
		afterFinishInternal : function(effect) {
			effect.element.hide().undoClipping().undoPositioned();
			effect.element.down().undoPositioned().setStyle( {
				bottom : oldInnerBottom
			})
		}
	}, arguments[1] || {}))
};
Effect.Squish = function(element) {
	return new Effect.Scale(element, window.opera ? 1 : 0, {
		restoreAfterFinish : true,
		beforeSetup : function(effect) {
			effect.element.makeClipping()
		},
		afterFinishInternal : function(effect) {
			effect.element.hide().undoClipping()
		}
	})
};
Effect.Grow = function(element) {
	element = $(element);
	var options = Object.extend( {
		direction : "center",
		moveTransition : Effect.Transitions.sinoidal,
		scaleTransition : Effect.Transitions.sinoidal,
		opacityTransition : Effect.Transitions.full
	}, arguments[1] || {});
	var oldStyle = {
		top : element.style.top,
		left : element.style.left,
		height : element.style.height,
		width : element.style.width,
		opacity : element.getInlineOpacity()
	};
	var dims = element.getDimensions();
	var initialMoveX, initialMoveY;
	var moveX, moveY;
	switch (options.direction) {
	case "top-left":
		initialMoveX = initialMoveY = moveX = moveY = 0;
		break;
	case "top-right":
		initialMoveX = dims.width;
		initialMoveY = moveY = 0;
		moveX = -dims.width;
		break;
	case "bottom-left":
		initialMoveX = moveX = 0;
		initialMoveY = dims.height;
		moveY = -dims.height;
		break;
	case "bottom-right":
		initialMoveX = dims.width;
		initialMoveY = dims.height;
		moveX = -dims.width;
		moveY = -dims.height;
		break;
	case "center":
		initialMoveX = dims.width / 2;
		initialMoveY = dims.height / 2;
		moveX = -dims.width / 2;
		moveY = -dims.height / 2;
		break
	}
	return new Effect.Move(element, {
		x : initialMoveX,
		y : initialMoveY,
		duration : 0.01,
		beforeSetup : function(effect) {
			effect.element.hide().makeClipping().makePositioned()
		},
		afterFinishInternal : function(effect) {
			new Effect.Parallel( [ new Effect.Opacity(effect.element, {
				sync : true,
				to : 1,
				from : 0,
				transition : options.opacityTransition
			}), new Effect.Move(effect.element, {
				x : moveX,
				y : moveY,
				sync : true,
				transition : options.moveTransition
			}), new Effect.Scale(effect.element, 100, {
				scaleMode : {
					originalHeight : dims.height,
					originalWidth : dims.width
				},
				sync : true,
				scaleFrom : window.opera ? 1 : 0,
				transition : options.scaleTransition,
				restoreAfterFinish : true
			}) ], Object.extend( {
				beforeSetup : function(effect) {
					effect.effects[0].element.setStyle( {
						height : "0px"
					}).show()
				},
				afterFinishInternal : function(effect) {
					effect.effects[0].element.undoClipping().undoPositioned()
							.setStyle(oldStyle)
				}
			}, options))
		}
	})
};
Effect.Shrink = function(element) {
	element = $(element);
	var options = Object.extend( {
		direction : "center",
		moveTransition : Effect.Transitions.sinoidal,
		scaleTransition : Effect.Transitions.sinoidal,
		opacityTransition : Effect.Transitions.none
	}, arguments[1] || {});
	var oldStyle = {
		top : element.style.top,
		left : element.style.left,
		height : element.style.height,
		width : element.style.width,
		opacity : element.getInlineOpacity()
	};
	var dims = element.getDimensions();
	var moveX, moveY;
	switch (options.direction) {
	case "top-left":
		moveX = moveY = 0;
		break;
	case "top-right":
		moveX = dims.width;
		moveY = 0;
		break;
	case "bottom-left":
		moveX = 0;
		moveY = dims.height;
		break;
	case "bottom-right":
		moveX = dims.width;
		moveY = dims.height;
		break;
	case "center":
		moveX = dims.width / 2;
		moveY = dims.height / 2;
		break
	}
	return new Effect.Parallel( [ new Effect.Opacity(element, {
		sync : true,
		to : 0,
		from : 1,
		transition : options.opacityTransition
	}), new Effect.Scale(element, window.opera ? 1 : 0, {
		sync : true,
		transition : options.scaleTransition,
		restoreAfterFinish : true
	}), new Effect.Move(element, {
		x : moveX,
		y : moveY,
		sync : true,
		transition : options.moveTransition
	}) ], Object.extend( {
		beforeStartInternal : function(effect) {
			effect.effects[0].element.makePositioned().makeClipping()
		},
		afterFinishInternal : function(effect) {
			effect.effects[0].element.hide().undoClipping().undoPositioned()
					.setStyle(oldStyle)
		}
	}, options))
};
Effect.Pulsate = function(element) {
	element = $(element);
	var options = arguments[1] || {}, oldOpacity = element.getInlineOpacity(), transition = options.transition
			|| Effect.Transitions.linear, reverser = function(pos) {
		return 1 - transition(-Math.cos(pos * (options.pulses || 5) * 2
				* Math.PI) / 2 + 0.5)
	};
	return new Effect.Opacity(element, Object.extend(Object.extend( {
		duration : 2,
		from : 0,
		afterFinishInternal : function(effect) {
			effect.element.setStyle( {
				opacity : oldOpacity
			})
		}
	}, options), {
		transition : reverser
	}))
};
Effect.Fold = function(element) {
	element = $(element);
	var oldStyle = {
		top : element.style.top,
		left : element.style.left,
		width : element.style.width,
		height : element.style.height
	};
	element.makeClipping();
	return new Effect.Scale(element, 5, Object.extend( {
		scaleContent : false,
		scaleX : false,
		afterFinishInternal : function(effect) {
			new Effect.Scale(element, 1, {
				scaleContent : false,
				scaleY : false,
				afterFinishInternal : function(effect) {
					effect.element.hide().undoClipping().setStyle(oldStyle)
				}
			})
		}
	}, arguments[1] || {}))
};
Effect.Morph = Class
		.create(
				Effect.Base,
				{
					initialize : function(element) {
						this.element = $(element);
						if (!this.element)
							throw Effect._elementDoesNotExistError;
						var options = Object.extend( {
							style : {}
						}, arguments[1] || {});
						if (!Object.isString(options.style))
							this.style = $H(options.style);
						else if (options.style.include(":"))
							this.style = options.style.parseStyle();
						else {
							this.element.addClassName(options.style);
							this.style = $H(this.element.getStyles());
							this.element.removeClassName(options.style);
							var css = this.element.getStyles();
							this.style = this.style.reject(function(style) {
								return style.value == css[style.key]
							});
							options.afterFinishInternal = function(effect) {
								effect.element
										.addClassName(effect.options.style);
								effect.transforms.each(function(transform) {
									effect.element.style[transform.style] = ""
								})
							}
						}
						this.start(options)
					},
					setup : function() {
						function parseColor(color) {
							if (!color
									|| [ "rgba(0, 0, 0, 0)", "transparent" ]
											.include(color))
								color = "#ffffff";
							color = color.parseColor();
							return $R(0, 2).map(
									function(i) {
										return parseInt(color.slice(i * 2 + 1,
												i * 2 + 3), 16)
									})
						}
						this.transforms = this.style
								.map(
										function(pair) {
											var property = pair[0], value = pair[1], unit = null;
											if (value.parseColor("#zzzzzz") != "#zzzzzz") {
												value = value.parseColor();
												unit = "color"
											} else if (property == "opacity") {
												value = parseFloat(value);
												if (Prototype.Browser.IE
														&& !this.element.currentStyle.hasLayout)
													this.element.setStyle( {
														zoom : 1
													})
											} else if (Element.CSS_LENGTH
													.test(value)) {
												var components = value
														.match(/^([\+\-]?[0-9\.]+)(.*)$/);
												value = parseFloat(components[1]);
												unit = components.length == 3 ? components[2]
														: null
											}
											var originalValue = this.element
													.getStyle(property);
											return {
												style : property.camelize(),
												originalValue : unit == "color" ? parseColor(originalValue)
														: parseFloat(originalValue || 0),
												targetValue : unit == "color" ? parseColor(value)
														: value,
												unit : unit
											}
										}.bind(this))
								.reject(
										function(transform) {
											return transform.originalValue == transform.targetValue
													|| transform.unit != "color"
													&& (isNaN(transform.originalValue) || isNaN(transform.targetValue))
										})
					},
					update : function(position) {
						var style = {}, transform, i = this.transforms.length;
						while (i--)
							style[(transform = this.transforms[i]).style] = transform.unit == "color" ? "#"
									+ Math
											.round(
													transform.originalValue[0]
															+ (transform.targetValue[0] - transform.originalValue[0])
															* position)
											.toColorPart()
									+ Math
											.round(
													transform.originalValue[1]
															+ (transform.targetValue[1] - transform.originalValue[1])
															* position)
											.toColorPart()
									+ Math
											.round(
													transform.originalValue[2]
															+ (transform.targetValue[2] - transform.originalValue[2])
															* position)
											.toColorPart()
									: (transform.originalValue + (transform.targetValue - transform.originalValue)
											* position).toFixed(3)
											+ (transform.unit === null ? ""
													: transform.unit);
						this.element.setStyle(style, true)
					}
				});
Effect.Transform = Class.create( {
	initialize : function(tracks) {
		this.tracks = [];
		this.options = arguments[1] || {};
		this.addTracks(tracks)
	},
	addTracks : function(tracks) {
		tracks.each(function(track) {
			track = $H(track);
			var data = track.values().first();
			this.tracks.push($H( {
				ids : track.keys().first(),
				effect : Effect.Morph,
				options : {
					style : data
				}
			}))
		}.bind(this));
		return this
	},
	play : function() {
		return new Effect.Parallel(this.tracks
				.map(
						function(track) {
							var ids = track.get("ids"), effect = track
									.get("effect"), options = track
									.get("options");
							var elements = [ $(ids) || $$(ids) ].flatten();
							return elements.map(function(e) {
								return new effect(e, Object.extend( {
									sync : true
								}, options))
							})
						}).flatten(), this.options)
	}
});
Element.CSS_PROPERTIES = $w("backgroundColor backgroundPosition borderBottomColor borderBottomStyle "
		+ "borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth "
		+ "borderRightColor borderRightStyle borderRightWidth borderSpacing "
		+ "borderTopColor borderTopStyle borderTopWidth bottom clip color "
		+ "fontSize fontWeight height left letterSpacing lineHeight "
		+ "marginBottom marginLeft marginRight marginTop markerOffset maxHeight "
		+ "maxWidth minHeight minWidth opacity outlineColor outlineOffset "
		+ "outlineWidth paddingBottom paddingLeft paddingRight paddingTop "
		+ "right textIndent top width wordSpacing zIndex");
Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;
String.__parseStyleElement = document.createElement("div");
String.prototype.parseStyle = function() {
	var style, styleRules = $H();
	if (Prototype.Browser.WebKit)
		style = (new Element("div", {
			style : this
		})).style;
	else {
		String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
		style = String.__parseStyleElement.childNodes[0].style
	}
	Element.CSS_PROPERTIES.each(function(property) {
		if (style[property])
			styleRules.set(property, style[property])
	});
	if (Prototype.Browser.IE && this.include("opacity"))
		styleRules.set("opacity",
				this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);
	return styleRules
};
if (document.defaultView && document.defaultView.getComputedStyle)
	Element.getStyles = function(element) {
		var css = document.defaultView.getComputedStyle($(element), null);
		return Element.CSS_PROPERTIES.inject( {}, function(styles, property) {
			styles[property] = css[property];
			return styles
		})
	};
else
	Element.getStyles = function(element) {
		element = $(element);
		var css = element.currentStyle, styles;
		styles = Element.CSS_PROPERTIES.inject( {},
				function(results, property) {
					results[property] = css[property];
					return results
				});
		if (!styles.opacity)
			styles.opacity = element.getOpacity();
		return styles
	};
Effect.Methods = {
	morph : function(element, style) {
		element = $(element);
		new Effect.Morph(element, Object.extend( {
			style : style
		}, arguments[2] || {}));
		return element
	},
	visualEffect : function(element, effect, options) {
		element = $(element);
		var s = effect.dasherize().camelize(), klass = s.charAt(0)
				.toUpperCase()
				+ s.substring(1);
		new Effect[klass](element, options);
		return element
	},
	highlight : function(element, options) {
		element = $(element);
		new Effect.Highlight(element, options);
		return element
	}
};
$w(
		"fade appear grow shrink fold blindUp blindDown slideUp slideDown "
				+ "pulsate shake puff squish switchOff dropOut").each(
		function(effect) {
			Effect.Methods[effect] = function(element, options) {
				element = $(element);
				Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](
						element, options);
				return element
			}
		});
$w(
		"getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles")
		.each(function(f) {
			Effect.Methods[f] = Element[f]
		});
Element.addMethods(Effect.Methods);
basket_summary = 'basket_summary';
request_count = 0;

function js_warning(id, message) {
	try {
		
	} catch (err) {

	}
}

function submit_basket_form(form_id, button_spinner_id, currency_conversion_id) {

	if (button_spinner_id) {
		if (currency_conversion_id && $(currency_conversion_id)) {
			$(currency_conversion_id).hide();
		}
		$(button_spinner_id).show();
	}

	basket_ajax_start($(form_id).serialize(true));

}

function show_basket_box() {
	if (!$('basket_summary_box').visible()) {

		cancel_idle_effects("basket_summary_box");
		if (!$("basket_summary_box").visible()) {
			Effect.BlindDown("basket_summary_box", {
				duration : 0.3,
				queue : {
					position : 'end',
					scope : "basket_summary_box",
					limit : 2
				},

				scaleMode : 'contents'

			});
		}

	}
}


function cancel_idle_effects(queue) {
	var queue = Effect.Queues.get(queue);
	queue.each(function(effect) {
		if (effect.state == "idle") {
			effect.cancel();
		}
	});
}

function in_viewport(dom_id) {
	offset = $(dom_id).viewportOffset();
	dimensions = $(dom_id).getDimensions();
	viewport = document.viewport.getDimensions();

	var dom_top = offset.top;
	var dom_bottom = offset.top + dimensions.height;

	if (dom_bottom < 0 || dom_top > viewport.height) {
		return false;
	} else {
		return true;
	}
}


function popper(url) {
	window
			.open(
					"/popup.html?" + url,
					"popperami",
					"toolbar=no,scrollbars=yes,status=no,menubar=no,resizable=yes,copyhistory=no,width=500,height=450,top=100,left=200");
}

var SideScroller = Class
		.create( {

			initialize : function(dom_prefix, scroll_by) {

				this.prefix = dom_prefix
				this.viewport = $(dom_prefix + "_viewport");
				this.content = $(dom_prefix + "_content");

				this.paging_blobs = false;
				this.paging_left_arrow = $(dom_prefix + "_leftarrow");
				this.paging_right_arrow = $(dom_prefix + "_rightarrow");

				this.current_page = 1;
				this.effect_duration = 1.0;
				this.scroll_amount = scroll_by;

				// IE6 (and others perhaps, have some extra padding somewhere in
				// the content, lets just remove a little for the time being)

				if (this.content) {
					if (this.content.offsetWidth <= scroll_by) {
						this.max_pages = 1;
					} else {
						// IE6 (and others perhaps, have some extra padding
						// somewhere in the content, lets just remove a little
						// for the time being)
						this.max_pages = Math
								.ceil((this.content.offsetWidth - 20)
										/ this.scroll_amount);
					}

					if (this.paging_right_arrow && this.paging_left_arrow) {
						Event.observe(this.paging_left_arrow, "click",
								this.scroll_left.bind(this));
						Event.observe(this.paging_right_arrow, "click",
								this.scroll_right.bind(this));
						this.update_arrows();
					}
				}

			},

			some_num : function() {
				return this.max_pages;
			},

			add_paging_blobs : function(dom_id) {
				this.paging_blobs = $(dom_id);
				this.create_blobs();
				return this.update_blobs();
			},

			create_blobs : function() {
				var html = '';

				for ( var x = 1; x <= this.max_pages; x++) {

					if (this.current_page == x) {
						var image = '/i/home/shopfront_currentpage.gif';
					} else {
						var image = '/i/home/shopfront_otherpage.gif';
					}

					html += '<img id="' + this.prefix + '_pageicon_' + x
							+ '" src="' + image + '" width="10" height="10" />';

				}

				this.paging_blobs.innerHTML = html;

				for ( var x = 1; x <= this.max_pages; x++) {

					Event.observe(this.prefix + '_pageicon_' + x, "click",
							this.goto_page_event_handler.bind(this))

				}

				return true;

			},

			update_blobs : function() {
				if (this.paging_blobs) {

					for (i = 1; i <= this.max_pages; i++) {
						$(this.prefix + '_pageicon_' + i).src = "/i/home/shopfront_otherpage.gif";
					}
					$(this.prefix + '_pageicon_' + this.current_page).src = "/i/home/shopfront_currentpage.gif";

					return true;
				} else {
					return false;
				}
			},

			goto_page_event_handler : function(event) {
				var element = Event.element(event);

				// Grab the page number form the end of the DOM id.
				temp = element.id
				reg = new RegExp("_([0-9]+)$");
				page = reg.exec(temp);
				page = parseInt(page[1]);

				if (page > 0 && page <= this.max_pages) {
					this.goto_page(page);
				}

				return true;
			},

			goto_page : function(page) {

				if (this.current_page != page && page > 0
						&& page <= this.max_pages) {

					new Effect.Move(this.content, {
						x : (this.current_page * this.scroll_amount)
								- (page * this.scroll_amount),
						y : 0,
						mode : 'relative',
						duration : this.effect_duration,
						queue : {
							position : 'end',
							scope : this.prefix + '_scrollscope'
						}
					});

					this.current_page = page;
					this.update_arrows();
					this.update_blobs();
				}

				return false;
			},

			scroll_left : function() {

				if (this.current_page > 1) {

					new Effect.Move(this.content, {
						x : this.scroll_amount,
						y : 0,
						mode : 'relative',
						duration : this.effect_duration,

						queue : {
							position : 'end',
							scope : this.prefix + '_scrollscope'
						}
					});
					this.current_page--;
					this.update_arrows();
					this.update_blobs();
				}

				return false;
			},

			scroll_right : function() {
				if (this.current_page < this.max_pages) {

					new Effect.Move(this.content, {
						x : 0 - this.scroll_amount,
						y : 0,
						mode : 'relative',
						duration : this.effect_duration,

						queue : {
							position : 'end',
							scope : this.prefix + '_scrollscope'
						}
					});

					this.current_page++;
					this.update_arrows();
					this.update_blobs();
				}

				return false;
			},

			update_arrows : function() {

				effects = new Array();

				if (this.current_page < this.max_pages) {
					// enable right arrow
			effects.push(new Effect.Appear(this.paging_right_arrow, {
				sync : true
			}));
		} else {
			// disable right arrow
			effects.push(new Effect.Fade(this.paging_right_arrow, {
				sync : true
			}));
		}

		if (this.current_page > 1) {
			// enable right arrow
			effects.push(new Effect.Appear(this.paging_left_arrow, {
				sync : true
			}));
		} else {
			// disable right arrow
			effects.push(new Effect.Fade(this.paging_left_arrow, {
				sync : true
			}));
		}

		if (effects.length > 0) {
			new Effect.Parallel(effects, {
				duration : this.effect_duration,
				queue : {
					position : 'end',
					scope : this.prefix + '_arrowscope'
				}
			});
		}

		return true;
	}

		});
function sendusyourvideo(product_id) {
	window.open('/v/upload/?product_id=' + product_id, 'addvideo2',
			'width=500,height=540,resizable=yes,scrollbars=yes');
}

function review(product_id) {
	window.open('/popup.html?dir=admin&action=review&id=' + product_id,
			'r' + product_id,
			'width=450,height=550,resizable=yes,scrollbars=yes');
}

function enlarge(product_id) {
	window
			.open(
					'/popup.html?dir=admin&action=enlarge&id=' + product_id,
					'e' + product_id,
					'directories=no,location=no,menubar=no,scrollbars=no,status=no,toolbar=no,resizeable=yes,width=750,height=750');

}
function addimage(product_id) {
	window.open(
			'/popup.html?dir=images&action=addimage&product_id=' + product_id,
			'r1109', 'width=450,height=500,resizable=yes,scrollbars=yes');
}

function viewimage(imageID, imageWidth, imageHeight) {
	window.open('/popup.html?dir=images&action=viewimage&imageID=' + imageID,
			'imageID', 'width=' + imageWidth + ',height=' + imageHeight
					+ ',resizable=yes,scrollbars=no');
}

/**
 * adapted from:
 * http://www.michaelminella.com/javascript/prototype-script.aculo.us-lightbox.html
 * Lightbox
 * 
 * This libary is used to create a lightbox in a web application. This library
 * requires the Prototype 1.6 library and Script.aculo.us core, effects, and
 * dragdrop libraries. To use, add a div containing the content to be displayed
 * anywhere on the page. To create the lightbox, add the following code:
 * 
 * var test;
 * 
 * Event.observe(window, 'load', function () { test = new Lightbox('idOfMyDiv');
 * });
 * 
 * Event.observe('lightboxLink', 'click', function () { test.open(); });
 * 
 * Event.observe('closeLink', 'click', function () { test.close(); });
 * 
 */

var Lightbox = Class
		.create( {
			open_with_customer_image : function(image_id) {
				var customer_image_data = window.customer_image_data();
				image_details = customer_image_data[image_id];
				var text;
				if (image_details.f_text) {
					text = image_details.r_text
							+ "<br /><div class=\"booncart_says\"><strong>WWFDO says:</strong> "
							+ image_details.f_text + "</div>";
				} else {
					text = image_details.r_text
				}

				this.open_with_image(image_details.url, image_details.w,
						image_details.h, text);
			},

			open_with_image : function(url, width, height, text) {
				text_element = $(this.text_element);
				if (text_element) {
					text_element.update("");
				}

				photo_element = $(this.photo_element);
				photo_element.src = "/i/spacer.gif";
				if (width && height) {
					photo_element.width = width;
					photo_element.height = height;
					$('light_box_container_header').style.width = width + "px";
				}
				this.open();
				photo_element.src = url;

				if (text) {
					if (text_element) {
						text_element.update(text);
					}
				}
			},

			open : function() {
				this._centerWindow(this.container);
				this._fade('open', this.container);
				this.binded_handle_keypress = this.handle_keypress.bind(this)
				document.observe('keydown', this.binded_handle_keypress);
			},

			close : function() {
				this._fade('close', this.container);
				photo_element = $(this.photo_element);
				photo_element.src = "/i/spacer.gif";
				document.stopObserving('keydown', this.binded_handle_keypress);
			},

			handle_keypress : function(event) {
				if (Event.KEY_ESC == event.keyCode) {
					this.close();
				}
			},

			_fade : function(userAction, id) {
				if (userAction == 'close') {
					new Effect.Opacity('light_box_bg_fade', {
						duration : 0.2,
						from : 0.8,
						to : 0,
						afterFinish : this._makeInvisible,
						afterUpdate : this._hideLayer(id)
					});
				} else {
					$('light_box_bg_fade').style.height = $(document.body)
							.getHeight() + 'px';
					new Effect.Opacity('light_box_bg_fade', {
						duration : 0.2,
						from : 0,
						to : 0.8,
						beforeUpdate : this._makeVisible,
						afterFinish : this._showLayer(id)
					});
				}
			},

			_makeVisible : function() {
				$("light_box_bg_fade").style.visibility = "visible";
			},

			_makeInvisible : function() {
				$("light_box_bg_fade").style.visibility = "hidden";
			},

			_showLayer : function(id) {
				$(id).style.display = "block";
			},

			_hideLayer : function(id) {
				$(id).style.display = "none";
			},

			_centerWindow : function(element) {
				var windowHeight = parseFloat($(element).getHeight()) / 2;
				var windowWidth = parseFloat($(element).getWidth()) / 2;
				var offset = $(document.body).viewportOffset();

				var top;
				var left;

				if (typeof window.innerHeight != 'undefined') {
					top = Math.round(document.body.offsetTop
							+ ((window.innerHeight - $(element).getHeight()))
							/ 2);
					left = Math
							.round(document.body.offsetLeft
									+ ((window.innerWidth - $(element)
											.getWidth())) / 2);
				} else {
					top = Math.round(document.body.offsetTop
							+ ((document.documentElement.offsetHeight - $(
									element).getHeight())) / 2);
					left = Math.round(document.body.offsetLeft
							+ ((document.documentElement.offsetWidth - $(
									element).getWidth())) / 2);
				}
				if (top < 0) {
					top = 0;
				}

				if (left < 0) {
					left = 0;
				}
				top -= offset.top;
				left -= offset.left;
				$(element).style.top = top + 'px';
				$(element).style.left = left + 'px';

			},

			initialize : function(containerDiv) {
				this.container = containerDiv;
				this.photo_element = this.container + '_photo';
				this.text_element = this.container + '_text';
				if ($('light_box_bg_fade') === null) {
					var screen = new Element('div', {
						'id' : 'light_box_bg_fade'
					});
					screen.style.height = $(document.body).getHeight() + 'px';
					document.body.appendChild(screen);
				}
				this._hideLayer(this.container);
			}
		});

function addbuttons_ajax_submission(javascript_to_call) {
	setTimeout(javascript_to_call, 10);
	// stop submission propagating to form
	return false;
}