/***************
 *	PROTOTYPE
 ***************/
	
/*  Prototype JavaScript framework, version 1.6.0.2
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/
	
var Prototype = {
	Version: '1.6.0.2',

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

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

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

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

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


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

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

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

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

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

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

	klass.prototype.constructor = klass;

	return klass;
	}
};

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

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

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

	return this;
	}
};

var Abstract = { };

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

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

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

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

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

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

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

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

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

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

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

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

	isArray: function(object) {
	return object != null && typeof object == "object" &&
		'splice' in object && 'join' in object;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	return returnValue;
	}
};

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

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

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

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

	this.registerCallback();
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	return camelized;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

var $break = { };

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Object.extend(Enumerable, {
	map:	 Enumerable.collect,
	find:	Enumerable.detect,
	select:	Enumerable.findAll,
	filter:	Enumerable.findAll,
	member:	Enumerable.include,
	entries: Enumerable.toArray,
	every:	Enumerable.all,
	some:	Enumerable.any
});
function $A(iterable) {
	if (!iterable) return [];
	if (iterable.toArray) return iterable.toArray();
	var length = iterable.length || 0, results = new Array(length);
	while (length--) results[length] = iterable[length];
	return results;
}

if (Prototype.Browser.WebKit) {
	$A = function(iterable) {
	if (!iterable) return [];
	if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
		iterable.toArray) return iterable.toArray();
	var length = iterable.length || 0, results = new Array(length);
	while (length--) results[length] = iterable[length];
	return results;
	};
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
	Array.prototype._each = Array.prototype.forEach;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	activeRequestCount: 0
};

Ajax.Responders = {
	responders: [],

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

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

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

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

Object.extend(Ajax.Responders, Enumerable);

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

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

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

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

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

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

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

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

	this.parameters = params;

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

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

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

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

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

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

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

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

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

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

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

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

	// user-defined headers
	if (typeof this.options.requestHeaders == 'object') {
		var extras = this.options.requestHeaders;

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

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

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

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

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

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

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

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

	if (state == 'Complete') {
		// avoid memory leak in MSIE: clean up
		this.transport.onreadystatechange = Prototype.emptyFunction;
	}
	},

	isSameOrigin: function() {
	var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
	return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
		protocol: location.protocol,
		domain: document.domain,
		port: location.port ? ':' + location.port : ''
	}));
	},

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

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

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

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

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

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

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

	status:		0,
	statusText: '',

	getStatus: Ajax.Request.prototype.getStatus,

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

	getHeader: Ajax.Request.prototype.getHeader,

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

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

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

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

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

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

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

	$super(url, options);
	},

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

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

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

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

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

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

	this.start();
	},

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

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

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

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

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

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

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

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

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

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

Element.cache = { };

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

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

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

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

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

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

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

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

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

	var content, insert, tagName, childNodes;

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

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

		content = Object.toHTML(content);

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

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

		if (position == 'top' || position == 'after') childNodes.reverse();
		childNodes.each(insert.curry(element));

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

	return element;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	return element;
	},

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

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

	// All *Width and *Height properties give 0 on elements with display none,
	// so enable the element temporarily
	var els = element.style;
	var originalVisibility = els.visibility;
	var originalPosition = els.position;
	var originalDisplay = els.display;
	els.visibility = 'hidden';
	els.position = 'absolute';
	els.display = 'block';
	var originalWidth = element.clientWidth;
	var originalHeight = element.clientHeight;
	els.display = originalDisplay;
	els.position = originalPosition;
	els.visibility = originalVisibility;
	return {width: originalWidth, height: originalHeight};
	},

	makePositioned: function(element) {
	element = $(element);
	var pos = Element.getStyle(element, 'position');
	if (pos == 'static' || !pos) {
		element._madePositioned = true;
		element.style.position = 'relative';
		// Opera returns the offset relative to the positioning context, when an
		// element is position relative but top and left have not been defined
		if (window.opera) {
		element.style.top = 0;
		element.style.left = 0;
		}
	}
	return element;
	},

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

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

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

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

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

	absolutize: function(element) {
	element = $(element);
	if (element.getStyle('position') == 'absolute') return;
	// Position.prepare(); // To be done manually by Scripty when it needs it.

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

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

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

	relativize: function(element) {
	element = $(element);
	if (element.getStyle('position') == 'relative') return;
	// Position.prepare(); // To be done manually by Scripty when it needs it.

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

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

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

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

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

	return $(document.body);
	},

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

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

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

	} while (element = element.offsetParent);

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

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

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

	// find page position of source
	source = $(source);
	var p = source.viewportOffset();

	// find coordinate system to use
	element = $(element);
	var delta = [0, 0];
	var parent = null;
	// delta [0,0] will do fine with position: fixed elements,
	// position:absolute needs offsetParent deltas
	if (Element.getStyle(element, 'position') == 'absolute') {
		parent = element.getOffsetParent();
		delta = parent.viewportOffset();
	}

	// correct by body offsets (fixes Safari)
	if (parent == document.body) {
		delta[0] -= document.body.offsetLeft;
		delta[1] -= document.body.offsetTop;
	}

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

Element.Methods.identify.counter = 1;

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

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

if (Prototype.Browser.Opera) {
	Element.Methods.getStyle = Element.Methods.getStyle.wrap(
	function(proceed, element, style) {
		switch (style) {
		case 'left': case 'top': case 'right': case 'bottom':
			if (proceed(element, 'position') === 'static') return null;
		case 'height': case 'width':
			// returns '0px' for hidden elements; we want it to return null
			if (!Element.visible(element)) return null;

			// returns the border-box dimensions rather than the content-box
			// dimensions, so we subtract padding and borders from the value
			var dim = parseInt(proceed(element, style), 10);

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

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

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

else if (Prototype.Browser.IE) {
	// IE doesn't report offsets correctly for static elements, so we change them
	// to "relative" to get the values, then change them back.
	Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
	function(proceed, element) {
		element = $(element);
		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);
		var position = element.getStyle('position');
		if (position !== 'static') return proceed(element);
		// Trigger hasLayout on the offset parent so that IE6 reports
		// accurate offsetTop and offsetLeft values for position: fixed.
		var offsetParent = element.getOffsetParent();
		if (offsetParent && offsetParent.getStyle('position') === 'fixed')
			offsetParent.setStyle({ zoom: 1 });
		element.setStyle({ position: 'relative' });
		var value = proceed(element);
		element.setStyle({ position: position });
		return value;
		}
	);
	});

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

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

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

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

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

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

	Element._attributeTranslations.write = {
	names: Object.extend({
		cellpadding: 'cellPadding',
		cellspacing: 'cellSpacing'
	}, Element._attributeTranslations.read.names),
	values: {
		checked: function(element, value) {
		element.checked = !!value;
		},

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

	Element._attributeTranslations.has = {};

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

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

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

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

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

	return element;
	};

	// Safari returns margins on body which is incorrect if the child is absolutely
	// positioned.	For performance reasons, redefine Element#cumulativeOffset for
	// KHTML/WebKit only.
	Element.Methods.cumulativeOffset = function(element) {
	var valueT = 0, valueL = 0;
	do {
		valueT += element.offsetTop	|| 0;
		valueL += element.offsetLeft || 0;
		if (element.offsetParent == document.body)
		if (Element.getStyle(element, 'position') == 'absolute') break;

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

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

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
	// IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
	Element.Methods.update = function(element, content) {
	element = $(element);

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

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

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

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

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

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

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

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

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

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

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

Element._insertionTranslations = {
	before: function(element, node) {
	element.parentNode.insertBefore(node, element);
	},
	top: function(element, node) {
	element.insertBefore(node, element.firstChild);
	},
	bottom: function(element, node) {
	element.appendChild(node);
	},
	after: function(element, node) {
	element.parentNode.insertBefore(node, element.nextSibling);
	},
	tags: {
	TABLE:	['<table>',				'</table>',					1],
	TBODY:	['<table><tbody>',		 '</tbody></table>',			2],
	TR:	 ['<table><tbody><tr>',	 '</tr></tbody></table>',		3],
	TD:	 ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
	SELECT: ['<select>',				'</select>',					1]
	}
};

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

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

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

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

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

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

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

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

	// extend methods for specific tags
	if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

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

	element._extendedByPrototype = Prototype.emptyFunction;
	return element;

	}, {
	refresh: function() {
		// extend methods for all tags (Safari doesn't need this)
		if (!Prototype.BrowserFeatures.ElementExtensions) {
		Object.extend(Methods, Element.Methods);
		Object.extend(Methods, Element.Methods.Simulated);
		}
	}
	});

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	var e = this.expression;

	// Safari 3 chokes on :*-of-type and :empty
	if (Prototype.Browser.WebKit &&
	 (e.include("-of-type") || e.include(":empty")))
		return false;

	// XPath can't do namespaced attributes, nor can it read
	// the "checked" property from DOM nodes
	if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
		return false;

	return true;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

	while (e && le !== e && (/\S/).test(e)) {
		le = e;
		for (var i in ps) {
		p = ps[i];
		if (m = e.match(p)) {
			// use the Selector.assertions methods unless the selector
			// is too complex.
			if (as[i]) {
			this.tokens.push([i, Object.clone(m)]);
			e = e.replace(m[0], '');
			} else {
			// reluctantly do a document-wide search
			// and look for a match in the array
			return this.findElements(document).include(element);
			}
		}
		}
	}

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

	return match;
	},

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

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

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

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

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

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

	patterns: {
	// combinators must be listed first
	// (and descendant needs to be last combinator)
	laterSibling: /^\s*~\s*/,
	child:		/^\s*>\s*/,
	adjacent:	 /^\s*\+\s*/,
	descendant:	/^\s/,

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

	// for Selector.match and Element#match
	assertions: {
	tagName: function(element, matches) {
		return matches[1].toUpperCase() == element.tagName.toUpperCase();
	},

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

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

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

	attr: function(element, matches) {
		var nodeValue = Element.readAttribute(element, matches[1]);
		return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
	}
	},

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

	// marks an array of nodes for counting
	mark: function(nodes) {
		var _true = Prototype.emptyFunction;
		for (var i = 0, node; node = nodes[i]; i++)
		node._countedByPrototype = _true;
		return nodes;
	},

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

	// mark each child node with its position (for nth calls)
	// "ofType" flag indicates whether we're indexing for nth-of-type
	// rather than nth-child
	index: function(parentNode, reverse, ofType) {
		parentNode._countedByPrototype = Prototype.emptyFunction;
		if (reverse) {
		for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
			var node = nodes[i];
			if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
		}
		} else {
		for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
			if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
		}
	},

	// filters out duplicates and extends all nodes
	unique: function(nodes) {
		if (nodes.length == 0) return nodes;
		var results = [], n;
		for (var i = 0, l = nodes.length; i < l; i++)
		if (!(n = nodes[i])._countedByPrototype) {
			n._countedByPrototype = Prototype.emptyFunction;
			results.push(Element.extend(n));
		}
		return Selector.handlers.unmark(results);
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	split: function(expression) {
	var expressions = [];
	expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
		expressions.push(m[1].strip());
	});
	return expressions;
	},

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

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

	findChildElements: function(element, expressions) {
	expressions = Selector.split(expressions.join(','));
	var results = [], h = Selector.handlers;
	for (var i = 0, l = expressions.length, selector; i < l; i++) {
		selector = new Selector(expressions[i].strip());
		h.concat(results, selector.findElements(element));
	}
	return (l > 1) ? h.unique(results) : results;
	}
});

if (Prototype.Browser.IE) {
	Object.extend(Selector.handlers, {
	// IE returns comment nodes on getElementsByTagName("*").
	// Filter them out.
	concat: function(a, b) {
		for (var i = 0, node; node = b[i]; i++)
		if (node.tagName !== "!") a.push(node);
		return a;
	},

	// IE improperly serializes _countedByPrototype in (inner|outer)HTML.
	unmark: function(nodes) {
		for (var i = 0, node; node = nodes[i]; i++)
		node.removeAttribute('_countedByPrototype');
		return nodes;
	}
	});
}

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

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

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

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

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

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

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

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

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

	return matchingInputs;
	},

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	optionValue: function(opt) {
	// extend element because hasAttribute may not be native
	return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
	}
};

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	cache: { },

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

	function getEventID(element) {
	if (element._prototypeEventID) return element._prototypeEventID[0];
	arguments.callee.id = arguments.callee.id || 1;
	return element._prototypeEventID = [++arguments.callee.id];
	}

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

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

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

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

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

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

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

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

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

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

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

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

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

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

		return element;
	},

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

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

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

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

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

		destroyWrapper(id, eventName, handler);

		return element;
	},

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

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

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

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

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

Object.extend(Event, Event.Methods);

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

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

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

	var timer;

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

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

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

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

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

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

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

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

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

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

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

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

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
	// set to true if needed, warning: firefox performance problems
	// NOT neeeded for page scrolling, only if draggable contained in
	// scrollable elements
	includeScrollOffsets: false,

	// must be called before calling withinIncludingScrolloffset, every time the
	// page is scrolled
	prepare: function() {
	this.deltaX =	window.pageXOffset
				|| document.documentElement.scrollLeft
				|| document.body.scrollLeft
				|| 0;
	this.deltaY =	window.pageYOffset
				|| document.documentElement.scrollTop
				|| document.body.scrollTop
				|| 0;
	},

	// caches x/y coordinate pair to use with overlap
	within: function(element, x, y) {
	if (this.includeScrollOffsets)
		return this.withinIncludingScrolloffsets(element, x, y);
	this.xcomp = x;
	this.ycomp = y;
	this.offset = Element.cumulativeOffset(element);

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

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

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

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

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

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

	cumulativeOffset: Element.Methods.cumulativeOffset,

	positionedOffset: Element.Methods.positionedOffset,

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

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

	realOffset: Element.Methods.cumulativeScrollOffset,

	offsetParent: Element.Methods.getOffsetParent,

	page: Element.Methods.viewportOffset,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Element.addMethods();


/****************
 *	SWF OBJECT
 ****************/

/**
 * SWFObject v1.5: Flash Player detection and embed - http://blog.deconcept.com/swfobject/
 *
 * SWFObject is (c) 2007 Geoff Stearns and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 */
 
/*
if(typeof deconcept=="undefined"){var deconcept=new Object();}if(typeof deconcept.util=="undefined"){deconcept.util=new Object();}if(typeof deconcept.SWFObjectUtil=="undefined"){deconcept.SWFObjectUtil=new Object();}deconcept.SWFObject=function(_1,id,w,h,_5,c,_7,_8,_9,_a){if(!document.getElementById){return;}this.DETECT_KEY=_a?_a:"detectflash";this.skipDetect=deconcept.util.getRequestParameter(this.DETECT_KEY);this.params=new Object();this.variables=new Object();this.attributes=new Array();if(_1){this.setAttribute("swf",_1);}if(id){this.setAttribute("id",id);}if(w){this.setAttribute("width",w);}if(h){this.setAttribute("height",h);}if(_5){this.setAttribute("version",new deconcept.PlayerVersion(_5.toString().split(".")));}this.installedVer=deconcept.SWFObjectUtil.getPlayerVersion();if(!window.opera&&document.all&&this.installedVer.major>7){deconcept.SWFObject.doPrepUnload=true;}if(c){this.addParam("bgcolor",c);}var q=_7?_7:"high";this.addParam("quality",q);this.setAttribute("useExpressInstall",false);this.setAttribute("doExpressInstall",false);var _c=(_8)?_8:window.location;this.setAttribute("xiRedirectUrl",_c);this.setAttribute("redirectUrl","");if(_9){this.setAttribute("redirectUrl",_9);}};deconcept.SWFObject.prototype={useExpressInstall:function(_d){this.xiSWFPath=!_d?"expressinstall.swf":_d;this.setAttribute("useExpressInstall",true);},setAttribute:function(_e,_f){this.attributes[_e]=_f;},getAttribute:function(_10){return this.attributes[_10];},addParam:function(_11,_12){this.params[_11]=_12;},getParams:function(){return this.params;},addVariable:function(_13,_14){this.variables[_13]=_14;},getVariable:function(_15){return this.variables[_15];},getVariables:function(){return this.variables;},getVariablePairs:function(){var _16=new Array();var key;var _18=this.getVariables();for(key in _18){_16[_16.length]=key+"="+_18[key];}return _16;},getSWFHTML:function(){var _19="";if(navigator.plugins&&navigator.mimeTypes&&navigator.mimeTypes.length){if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","PlugIn");this.setAttribute("swf",this.xiSWFPath);}_19="<embed type=\"application/x-shockwave-flash\" src=\""+this.getAttribute("swf")+"\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\"";_19+=" id=\""+this.getAttribute("id")+"\" name=\""+this.getAttribute("id")+"\" ";var _1a=this.getParams();for(var key in _1a){_19+=[key]+"=\""+_1a[key]+"\" ";}var _1c=this.getVariablePairs().join("&");if(_1c.length>0){_19+="flashvars=\""+_1c+"\"";}_19+="/>";}else{if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","ActiveX");this.setAttribute("swf",this.xiSWFPath);}_19="<object id=\""+this.getAttribute("id")+"\" classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\" style=\""+this.getAttribute("style")+"\">";_19+="<param name=\"movie\" value=\""+this.getAttribute("swf")+"\" />";var _1d=this.getParams();for(var key in _1d){_19+="<param name=\""+key+"\" value=\""+_1d[key]+"\" />";}var _1f=this.getVariablePairs().join("&");if(_1f.length>0){_19+="<param name=\"flashvars\" value=\""+_1f+"\" />";}_19+="</object>";}return _19;},write:function(_20){if(this.getAttribute("useExpressInstall")){var _21=new deconcept.PlayerVersion([6,0,65]);if(this.installedVer.versionIsValid(_21)&&!this.installedVer.versionIsValid(this.getAttribute("version"))){this.setAttribute("doExpressInstall",true);this.addVariable("MMredirectURL",escape(this.getAttribute("xiRedirectUrl")));document.title=document.title.slice(0,47)+" - Flash Player Installation";this.addVariable("MMdoctitle",document.title);}}if(this.skipDetect||this.getAttribute("doExpressInstall")||this.installedVer.versionIsValid(this.getAttribute("version"))){var n=(typeof _20=="string")?document.getElementById(_20):_20;n.innerHTML=this.getSWFHTML();return true;}else{if(this.getAttribute("redirectUrl")!=""){document.location.replace(this.getAttribute("redirectUrl"));}}return false;}};deconcept.SWFObjectUtil.getPlayerVersion=function(){var _23=new deconcept.PlayerVersion([0,0,0]);if(navigator.plugins&&navigator.mimeTypes.length){var x=navigator.plugins["Shockwave Flash"];if(x&&x.description){_23=new deconcept.PlayerVersion(x.description.replace(/([a-zA-Z]|\s)+/,"").replace(/(\s+r|\s+b[0-9]+)/,".").split("."));}}else{if(navigator.userAgent&&navigator.userAgent.indexOf("Windows CE")>=0){var axo=1;var _26=3;while(axo){try{_26++;axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+_26);_23=new deconcept.PlayerVersion([_26,0,0]);}catch(e){axo=null;}}}else{try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");}catch(e){try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");_23=new deconcept.PlayerVersion([6,0,21]);axo.AllowScriptAccess="always";}catch(e){if(_23.major==6){return _23;}}try{axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash");}catch(e){}}if(axo!=null){_23=new deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));}}}return _23;};deconcept.PlayerVersion=function(_29){this.major=_29[0]!=null?parseInt(_29[0]):0;this.minor=_29[1]!=null?parseInt(_29[1]):0;this.rev=_29[2]!=null?parseInt(_29[2]):0;};deconcept.PlayerVersion.prototype.versionIsValid=function(fv){if(this.major<fv.major){return false;}if(this.major>fv.major){return true;}if(this.minor<fv.minor){return false;}if(this.minor>fv.minor){return true;}if(this.rev<fv.rev){return false;}return true;};deconcept.util={getRequestParameter:function(_2b){var q=document.location.search||document.location.hash;if(_2b==null){return q;}if(q){var _2d=q.substring(1).split("&");for(var i=0;i<_2d.length;i++){if(_2d[i].substring(0,_2d[i].indexOf("="))==_2b){return _2d[i].substring((_2d[i].indexOf("=")+1));}}}return "";}};deconcept.SWFObjectUtil.cleanupSWFs=function(){var _2f=document.getElementsByTagName("OBJECT");for(var i=_2f.length-1;i>=0;i--){_2f[i].style.display="none";for(var x in _2f[i]){if(typeof _2f[i][x]=="function"){_2f[i][x]=function(){};}}}};if(deconcept.SWFObject.doPrepUnload){if(!deconcept.unloadSet){deconcept.SWFObjectUtil.prepUnload=function(){__flash_unloadHandler=function(){};__flash_savedUnloadHandler=function(){};window.attachEvent("onunload",deconcept.SWFObjectUtil.cleanupSWFs);};window.attachEvent("onbeforeunload",deconcept.SWFObjectUtil.prepUnload);deconcept.unloadSet=true;}}if(!document.getElementById&&document.all){document.getElementById=function(id){return document.all[id];};}var getQueryParamValue=deconcept.util.getRequestParameter;var FlashObject=deconcept.SWFObject;var SWFObject=deconcept.SWFObject;
*/
/*************
 *	EFFECTS
 *************/

 // script.aculo.us effects.js v1.8.1, Thu Jan 03 22:07:12 -0500 2008

// Copyright (c) 2005-2007 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
// Contributors:
//	Justin Palmer (http://encytemedia.com/)
//	Mark Pilgrim (http://diveintomark.org/)
//	Martin Bialasinki
// 
// script.aculo.us is freely distributable under the terms of an MIT-style license.
// For details, see the script.aculo.us web site: http://script.aculo.us/ 

// converts rgb() and #xxx to #xxxxxx format,	
// returns self (or first argument) if not convertable	

//var EffectsEventManager = new EventManager("effects");

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

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

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

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

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

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

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

var Effect = {
	_elementDoesNotExistError: {
	name: 'ElementDoesNotExistError',
	message: 'The specified DOM element does not exist, but is required for this effect to operate'
	},
	Transitions: {
	linear: Prototype.K,
	sinoidal: function(pos) {
		return (-Math.cos(pos*Math.PI)/2) + 0.5;
	},
	reverse: function(pos) {
		return 1-pos;
	},
	flicker: function(pos) {
		var pos = ((-Math.cos(pos*Math.PI)/4) + 0.75) + Math.random()/4;
		return pos > 1 ? 1 : pos;
	},
	wobble: function(pos) {
		return (-Math.cos(pos*Math.PI*(9*pos))/2) + 0.5;
	},
	pulse: function(pos, pulses) { 
		pulses = pulses || 5; 
		return (
		((pos % (1/pulses)) * pulses).round() == 0 ? 
				((pos * pulses * 2) - (pos * pulses * 2).floor()) : 
			1 - ((pos * pulses * 2) - (pos * pulses * 2).floor())
		);
	},
	spring: function(pos) { 
		return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6)); 
	},
	none: function(pos) {
		return 0;
	},
	full: function(pos) {
		return 1;
	}
	},
	DefaultOptions: {
	duration:	1.0,	// seconds
	fps:		100,	// 100= assume 66fps max.
	sync:		false, // true for combining
	from:		0.0,
	to:		 1.0,
	delay:		0.0,
	queue:		'parallel'
	},
	tagifyText: function(element) {
	var tagifyStyle = 'position:relative';
	if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';
	
	element = $(element);
	$A(element.childNodes).each( function(child) {
		if (child.nodeType==3) {
		child.nodeValue.toArray().each( function(character) {
			element.insertBefore(
			new Element('span', {style: tagifyStyle}).update(
				character == ' ' ? String.fromCharCode(160) : character), 
				child);
		});
		Element.remove(child);
		}
	});
	},
	multiple: function(element, effect) {
	var elements;
	if (((typeof element == 'object') || 
		Object.isFunction(element)) && 
		(element.length))
		elements = element;
	else
		elements = $(element).childNodes;
		
	var options = Object.extend({
		speed: 0.1,
		delay: 0.0
	}, arguments[2] || { });
	var masterDelay = options.delay;

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

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

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

Effect.ScopedQueue = Class.create(Enumerable, {
	initialize: function() {
	this.effects	= [];
	this.interval = null;	
	},
	_each: function(iterator) {
	this.effects._each(iterator);
	},
	add: function(effect) {
	var timestamp = new Date().getTime();
	
	var position = Object.isString(effect.options.queue) ? 
		effect.options.queue : effect.options.queue.position;
	
	switch(position) {
		case 'front':
		// move unstarted effects after this effect	
		this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
			e.startOn	+= effect.finishOn;
			e.finishOn += effect.finishOn;
			});
		break;
		case 'with-last':
		timestamp = this.effects.pluck('startOn').max() || timestamp;
		break;
		case 'end':
		// start effect after last queued effect has finished
		timestamp = this.effects.pluck('finishOn').max() || timestamp;
		break;
	}
	
	effect.startOn	+= timestamp;
	effect.finishOn += timestamp;

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

Effect.Queues = {
	instances: $H(),
	get: function(queueName) {
	if (!Object.isString(queueName)) return queueName;
	
	return this.instances.get(queueName) ||
		this.instances.set(queueName, new Effect.ScopedQueue());
	}
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
	position: null,
	start: function(options) {
	function codeForEvent(options,eventName){
		return (
		(options[eventName+'Internal'] ? 'this.options.'+eventName+'Internal(this);' : '') +
		(options[eventName] ? 'this.options.'+eventName+'(this);' : '')
		);
	}
	if (options && options.transition === false) options.transition = Effect.Transitions.linear;
	this.options		= Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
	this.currentFrame = 0;
	this.state		= 'idle';
	this.startOn		= this.options.delay*1000;
	this.finishOn	 = this.startOn+(this.options.duration*1000);
	this.fromToDelta	= this.options.to-this.options.from;
	this.totalTime	= this.finishOn-this.startOn;
	this.totalFrames	= this.options.fps*this.options.duration;
	
	eval('this.render = function(pos){ '+
		'if (this.state=="idle"){this.state="running";'+
		codeForEvent(this.options,'beforeSetup')+
		(this.setup ? 'this.setup();':'')+ 
		codeForEvent(this.options,'afterSetup')+
		'};if (this.state=="running"){'+
		'pos=this.options.transition(pos)*'+this.fromToDelta+'+'+this.options.from+';'+
		'this.position=pos;'+
		codeForEvent(this.options,'beforeUpdate')+
		(this.update ? 'this.update(pos);':'')+
		codeForEvent(this.options,'afterUpdate')+
		'}}');
	
	this.event('beforeStart');
	if (!this.options.sync)
		Effect.Queues.get(Object.isString(this.options.queue) ? 
		'global' : this.options.queue.scope).add(this);
	},
	loop: function(timePos) {
	if (timePos >= this.startOn) {
		if (timePos >= this.finishOn) {
		this.render(1.0);
		this.cancel();
		this.event('beforeFinish');
		if (this.finish) this.finish(); 
		this.event('afterFinish');
		return;	
		}
		var pos	= (timePos - this.startOn) / this.totalTime,
			frame = (pos * this.totalFrames).round();
		if (frame > this.currentFrame) {
		this.render(pos);
		this.currentFrame = frame;
		}
	}
	},
	cancel: function() {
	if (!this.options.sync)
		Effect.Queues.get(Object.isString(this.options.queue) ? 
		'global' : this.options.queue.scope).remove(this);
	this.state = 'finished';
	},
	event: function(eventName) {
	if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
	if (this.options[eventName]) this.options[eventName](this);
	},
	inspect: function() {
	var data = $H();
	for(property in this)
		if (!Object.isFunction(this[property])) data.set(property, this[property]);
	return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
	}
});

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

Effect.Opacity = Class.create(Effect.Base, {
	initialize: function(element) {
	this.element = $(element);
	if (!this.element) throw(Effect._elementDoesNotExistError);
	// make this work on IE on elements without 'layout'
	if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
		this.element.setStyle({zoom: 1});
	var options = Object.extend({
		from: this.element.getOpacity() || 0.0,
		to:	1.0
	}, arguments[1] || { });
	this.start(options);
	},
	update: function(position) {
	this.element.setOpacity(position);
	}
});

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

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

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

Effect.Appear = function(element) {
	element = $(element);
	var options = Object.extend({
	from: (Element.Methods.getStyle(element, 'display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
	to:	1.0,
	// force Safari to render floated elements properly
	afterFinishInternal: function(effect) {
	effect.element.forceRerendering();
	//obj.EffectsEventManager.dispatchEvent(obj.APPEAR_FINISHED);
	},
	beforeSetup: function(effect) {
	effect.element.setOpacity(effect.options.from).show(); 
	}}, arguments[1] || { });
	return new Effect.Opacity(element,options);
};


// Bug in opera makes the TD containing this element expand for a instance after finish 

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);

/************
 *	MOO FX
 ************/

/*
moo.fx, simple effects library built with prototype.js (http://prototype.conio.net).
by Valerio Proietti (http://mad4milk.net) MIT-style LICENSE.
for more info (http://moofx.mad4milk.net).
Sunday, March 05, 2006
v 1.2.3
*/

var fx = new Object();
//base
fx.Base = function(){};
fx.Base.prototype = {
	setOptions: function(options) {
	this.options = {
		duration: 500,
		onComplete: '',
		transition: fx.sinoidal
	}
	Object.extend(this.options, options || {});
	},

	step: function() {
		var time = (new Date).getTime();
		if (time >= this.options.duration+this.startTime) {
			this.now = this.to;
			clearInterval (this.timer);
			this.timer = null;
			if (this.options.onComplete) setTimeout(this.options.onComplete.bind(this), 10);
		}
		else {
			var Tpos = (time - this.startTime) / (this.options.duration);
			this.now = this.options.transition(Tpos) * (this.to-this.from) + this.from;
		}
		this.increase();
	},

	custom: function(from, to) {
		if (this.timer != null) return;
		this.from = from;
		this.to = to;
		this.startTime = (new Date).getTime();
		this.timer = setInterval (this.step.bind(this), 13);
	},

	hide: function() {
		this.now = 0;
		this.increase();
	},

	clearTimer: function() {
		clearInterval(this.timer);
		this.timer = null;
	}
}

//stretchers
fx.Layout = Class.create();
fx.Layout.prototype = Object.extend(new fx.Base(), {
	initialize: function(el, options) {
		this.el = $(el);
		this.el.style.overflow = "hidden";
		this.iniWidth = this.el.offsetWidth;
		this.iniHeight = this.el.offsetHeight;
		this.setOptions(options);
	}
});

fx.Height = Class.create();
Object.extend(Object.extend(fx.Height.prototype, fx.Layout.prototype), {	
	increase: function() {
		this.el.style.height = this.now + "px";
	},

	toggle: function() {
		if (this.el.offsetHeight > 0) this.custom(this.el.offsetHeight, 0);
		else this.custom(0, this.el.scrollHeight);
	}
});

fx.Width = Class.create();
Object.extend(Object.extend(fx.Width.prototype, fx.Layout.prototype), {	
	increase: function() {
		this.el.style.width = this.now + "px";
	},

	toggle: function(){
		if (this.el.offsetWidth > 0) this.custom(this.el.offsetWidth, 0);
		else this.custom(0, this.iniWidth);
	}
});

//fader
fx.Opacity = Class.create();
fx.Opacity.prototype = Object.extend(new fx.Base(), {
	initialize: function(el, options) {
		this.el = $(el);
		this.now = 1;
		this.increase();
		this.setOptions(options);
	},

	increase: function() {
		if (this.now == 1 && (/Firefox/.test(navigator.userAgent))) this.now = 0.9999;
		this.setOpacity(this.now);
	},
	
	setOpacity: function(opacity) {
		if (opacity == 0 && this.el.style.visibility != "hidden") this.el.style.visibility = "hidden";
		else if (this.el.style.visibility != "visible") this.el.style.visibility = "visible";
		if (window.ActiveXObject) this.el.style.filter = "alpha(opacity=" + opacity*100 + ")";
		this.el.style.opacity = opacity;
	},

	toggle: function() {
		if (this.now > 0) this.custom(1, 0);
		else this.custom(0, 1);
	}
});

//transitions
fx.sinoidal = function(pos){
	return ((-Math.cos(pos*Math.PI)/2) + 0.5);
	//this transition is from script.aculo.us
}
fx.linear = function(pos){
	return pos;
}
fx.cubic = function(pos){
	return Math.pow(pos, 3);
}
fx.circ = function(pos){
	return Math.sqrt(pos);
}

/*************
 *	LITEBOX
 *************/

// -----------------------------------------------------------------------------------
//
//	Litebox v1.0
//	A combined effort between detrate and gannon
//	07/03/06
//
//	Source edited from Lightbox v2.02
//	by Lokesh Dhakar - http://www.huddletogether.com
//
//	For more information on this script, visit:
//	http://doknowevil.net/litebox
//
//	Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
//	
//	Credit also due to those who have helped, inspired, and made their code available to the public.
//	Including: Scott Upton(uptonic.com), Peter-Paul Koch(quirksmode.org), Thomas Fuchs(mir.aculo.us), and others.
//
// -----------------------------------------------------------------------------------

//
//	Configuration
//
var fileLoadingImage = "images/loading.gif";		
var fileBottomNavCloseImage = "images/closelabel.gif";
var resizeSpeed = 6;	// controls the speed of the image resizing (1=slowest and 10=fastest)
var borderSize = 10;	//if you adjust the padding in the CSS, you will need to update this variable

// -----------------------------------------------------------------------------------

//
//	Global Variables
//
var imageArray = new Array;
var activeImage;

if(resizeSpeed > 10){ resizeSpeed = 10;}
if(resizeSpeed < 1){ resizeSpeed = 1;}
resizeDuration = (11 - resizeSpeed) * 100;

// -----------------------------------------------------------------------------------

//
//	Additional methods for Element added by SU, Couloir
//	- further additions by Lokesh Dhakar (huddletogether.com)
//
Object.extend(Element, {
	hide: function() {
		for (var i = 0; i < arguments.length; i++) {
			var element = $(arguments[i]);
			element.style.display = 'none';
		}
	},
	show: function() {
		for (var i = 0; i < arguments.length; i++) {
			var element = $(arguments[i]);
			element.style.display = '';
		}
	},
	getWidth: function(element) {
			element = $(element);
			return element.offsetWidth; 
	},
	setWidth: function(element,w) {
			element = $(element);
		element.style.width = w +"px";
	},
	getHeight: function(element) {
		element = $(element);
		return element.offsetHeight;
	},
	setHeight: function(element,h) {
			element = $(element);
		element.style.height = h +"px";
	},
	setTop: function(element,t) {
			element = $(element);
		element.style.top = t +"px";
	},
	setSrc: function(element,src) {
		element = $(element);
		element.src = src; 
	},
	setInnerHTML: function(element,content) {
		element = $(element);
		element.innerHTML = content;
	}
});

// -----------------------------------------------------------------------------------

//
//	Extending built-in Array object
//
Array.prototype.removeDuplicates = function () {
	for(i = 1; i < this.length; i++){
		if(this[i][0] == this[i-1][0]){
			this.splice(i,1);
		}
	}
}

Array.prototype.empty = function () {
	for(i = 0; i <= this.length; i++){
		this.shift();
	}
}

// -----------------------------------------------------------------------------------
//
//	Structuring of code inspired by Scott Upton (http://www.uptonic.com/)
//
var Lightbox = Class.create();

Lightbox.prototype = {
	
	// initialize()
	// Constructor runs on completion of the DOM loading. Loops through anchor tags looking for 
	// 'lightbox' references and applies onclick events to appropriate links. The 2nd section of
	// the function inserts html at the bottom of the page which is used to display the shadow 
	// overlay and the image container.
	//
	initialize: function() {
		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName('a');

		// loop through all anchor tags
		for (var i=0; i<anchors.length; i++){
			var anchor = anchors[i];
			
			var relAttribute = String(anchor.getAttribute('rel'));
			
			// use the string.match() method to catch 'lightbox' references in the rel attribute
			if (anchor.getAttribute('href') && (relAttribute.toLowerCase().match('lightbox'))){
				anchor.onclick = function () {myLightbox.start(this); return false;}
			}
		}

		var objBody = document.getElementsByTagName("body").item(0);
		
		var objOverlay = document.createElement("div");
		objOverlay.setAttribute('id','overlay');
		objOverlay.onclick = function() { myLightbox.end(); return false; }
		objBody.appendChild(objOverlay);
		
		var objLightbox = document.createElement("div");
		objLightbox.setAttribute('id','lightbox');
		objLightbox.style.display = 'none';
		objBody.appendChild(objLightbox);
	
		var objOuterImageContainer = document.createElement("div");
		objOuterImageContainer.setAttribute('id','outerImageContainer');
		objLightbox.appendChild(objOuterImageContainer);

		var objImageContainer = document.createElement("div");
		objImageContainer.setAttribute('id','imageContainer');
		objOuterImageContainer.appendChild(objImageContainer);
	
		var objLightboxImage = document.createElement("img");
		objLightboxImage.setAttribute('id','lightboxImage');
		objImageContainer.appendChild(objLightboxImage);
	
		var objHoverNav = document.createElement("div");
		objHoverNav.setAttribute('id','hoverNav');
		objImageContainer.appendChild(objHoverNav);
	
		var objPrevLink = document.createElement("a");
		objPrevLink.setAttribute('id','prevLink');
		objPrevLink.setAttribute('href','#');
		objHoverNav.appendChild(objPrevLink);
		
		var objNextLink = document.createElement("a");
		objNextLink.setAttribute('id','nextLink');
		objNextLink.setAttribute('href','#');
		objHoverNav.appendChild(objNextLink);
	
		var objLoading = document.createElement("div");
		objLoading.setAttribute('id','loading');
		objImageContainer.appendChild(objLoading);
	
		var objLoadingLink = document.createElement("a");
		objLoadingLink.setAttribute('id','loadingLink');
		objLoadingLink.setAttribute('href','#');
		objLoadingLink.onclick = function() { myLightbox.end(); return false; }
		objLoading.appendChild(objLoadingLink);
	
		var objLoadingImage = document.createElement("img");
		objLoadingImage.setAttribute('src', fileLoadingImage);
		objLoadingLink.appendChild(objLoadingImage);

		var objImageDataContainer = document.createElement("div");
		objImageDataContainer.setAttribute('id','imageDataContainer');
		objImageDataContainer.className = 'clearfix';
		objLightbox.appendChild(objImageDataContainer);

		var objImageData = document.createElement("div");
		objImageData.setAttribute('id','imageData');
		objImageDataContainer.appendChild(objImageData);
	
		var objImageDetails = document.createElement("div");
		objImageDetails.setAttribute('id','imageDetails');
		objImageData.appendChild(objImageDetails);
	
		var objCaption = document.createElement("span");
		objCaption.setAttribute('id','caption');
		objImageDetails.appendChild(objCaption);
	
		var objNumberDisplay = document.createElement("span");
		objNumberDisplay.setAttribute('id','numberDisplay');
		objImageDetails.appendChild(objNumberDisplay);
		
		var objBottomNav = document.createElement("div");
		objBottomNav.setAttribute('id','bottomNav');
		objImageData.appendChild(objBottomNav);
	
		var objBottomNavCloseLink = document.createElement("a");
		objBottomNavCloseLink.setAttribute('id','bottomNavClose');
		objBottomNavCloseLink.setAttribute('href','#');
		objBottomNavCloseLink.onclick = function() { myLightbox.end(); return false; }
		objBottomNav.appendChild(objBottomNavCloseLink);
	
		var objBottomNavCloseImage = document.createElement("img");
		objBottomNavCloseImage.setAttribute('src', fileBottomNavCloseImage);
		objBottomNavCloseLink.appendChild(objBottomNavCloseImage);
		
		overlayEffect = new fx.Opacity(objOverlay, { duration: 300 });	
		overlayEffect.hide();
		
		imageEffect = new fx.Opacity(objLightboxImage, { duration: 350, onComplete: function() { imageDetailsEffect.custom(0,1); }});
		imageEffect.hide();
		
		imageDetailsEffect = new fx.Opacity('imageDataContainer', { duration: 400, onComplete: function() { navEffect.custom(0,1); }}); 
		imageDetailsEffect.hide();
		
		navEffect = new fx.Opacity('hoverNav', { duration: 100 });
		navEffect.hide();
	},
	
	//
	//	start()
	//	Display overlay and lightbox. If image is part of a set, add siblings to imageArray.
	//
	start: function(imageLink) {	

		hideSelectBoxes();

		// stretch overlay to fill page and fade in
		var arrayPageSize = getPageSize();
		Element.setHeight('overlay', arrayPageSize[1]);
		overlayEffect.custom(0,0.8);
		
		imageArray = [];
		imageNum = 0;		

		if (!document.getElementsByTagName){ return; }
		var anchors = document.getElementsByTagName('a');

		// if image is NOT part of a set..
		if((imageLink.getAttribute('rel') == 'lightbox')){
			// add single image to imageArray
			imageArray.push(new Array(imageLink.getAttribute('href'), imageLink.getAttribute('title')));			
		} else {
		// if image is part of a set..

			// loop through anchors, find other images in set, and add them to imageArray
			for (var i=0; i<anchors.length; i++){
				var anchor = anchors[i];
				if (anchor.getAttribute('href') && (anchor.getAttribute('rel') == imageLink.getAttribute('rel'))){
					imageArray.push(new Array(anchor.getAttribute('href'), anchor.getAttribute('title')));
				}
			}
			imageArray.removeDuplicates();
			while(imageArray[imageNum][0] != imageLink.getAttribute('href')) { imageNum++;}
		}

		// calculate top offset for the lightbox and display 
		var arrayPageSize = getPageSize();
		var arrayPageScroll = getPageScroll();
		var lightboxTop = arrayPageScroll[1] + (arrayPageSize[3] / 15);

		Element.setTop('lightbox', lightboxTop);
		Element.show('lightbox');
		this.changeImage(imageNum);
	},

	//
	//	changeImage()
	//	Hide most elements and preload image in preparation for resizing image container.
	//
	changeImage: function(imageNum) {
		
		activeImage = imageNum;	// update global var

		// hide elements during transition
		Element.show('loading');
		imageDetailsEffect.hide();
		imageEffect.hide();
		navEffect.hide();
		Element.hide('prevLink');
		Element.hide('nextLink');
		Element.hide('numberDisplay');
		
		imgPreloader = new Image();
		// once image is preloaded, resize image container
		imgPreloader.onload=function(){
			Element.setSrc('lightboxImage', imageArray[activeImage][0]);
			myLightbox.resizeImageContainer(imgPreloader.width, imgPreloader.height);
		}
		imgPreloader.src = imageArray[activeImage][0];
	},

	//
	//	resizeImageContainer()
	//
	resizeImageContainer: function( imgWidth, imgHeight) {

		// get current height and width
		this.wCur = Element.getWidth('outerImageContainer');
		this.hCur = Element.getHeight('outerImageContainer');

		// calculate size difference between new and old image, and resize if necessary
		wDiff = (this.wCur - borderSize * 2) - imgWidth;
		hDiff = (this.hCur - borderSize * 2) - imgHeight;
		
		// Resize the outerImageContainer very sexy like
		reHeight = new fx.Height('outerImageContainer', { duration: resizeDuration });
		reHeight.custom(Element.getHeight('outerImageContainer'),imgHeight+(borderSize*2)); 
		reWidth = new fx.Width('outerImageContainer', { duration: resizeDuration, onComplete: function() { imageEffect.custom(0,1); }});
		reWidth.custom(Element.getWidth('outerImageContainer'),imgWidth+(borderSize*2));

		// if new and old image are same size and no scaling transition is necessary, 
		// do a quick pause to prevent image flicker.
		if((hDiff == 0) && (wDiff == 0)){
			if (navigator.appVersion.indexOf("MSIE")!=-1){ pause(250); } else { pause(100);} 
		}

		Element.setHeight('prevLink', imgHeight);
		Element.setHeight('nextLink', imgHeight);
		Element.setWidth( 'imageDataContainer', imgWidth + (borderSize * 2));
		Element.setWidth( 'hoverNav', imgWidth + (borderSize * 2));
		
		this.showImage();
	},
	
	//
	//	showImage()
	//	Display image and begin preloading neighbors.
	//
	showImage: function(){
		Element.hide('loading');
		myLightbox.updateDetails(); 
		this.preloadNeighborImages();
	},

	//
	//	updateDetails()
	//	Display caption, image number, and bottom nav.
	//
	updateDetails: function() {

		Element.show('caption');
		Element.setInnerHTML( 'caption', imageArray[activeImage][1]);
		
		// if image is part of set display 'Image x of x' 
		if(imageArray.length > 1){
			Element.show('numberDisplay');
			Element.setInnerHTML( 'numberDisplay', "Image " + eval(activeImage + 1) + " of " + imageArray.length);
		}

		myLightbox.updateNav();
	},
	//
	//	updateNav()
	//	Display appropriate previous and next hover navigation.
	//
	updateNav: function() {

		// if not first image in set, display prev image button
		if(activeImage != 0){
			Element.show('prevLink');
			document.getElementById('prevLink').onclick = function() {
				myLightbox.changeImage(activeImage - 1); return false;
			}
		}

		// if not last image in set, display next image button
		if(activeImage != (imageArray.length - 1)){
			Element.show('nextLink');
			document.getElementById('nextLink').onclick = function() {
				myLightbox.changeImage(activeImage + 1); return false;
			}
		}
		
		this.enableKeyboardNav();
	},

	//
	//	enableKeyboardNav()
	//
	enableKeyboardNav: function() {
		document.onkeydown = this.keyboardAction; 
	},

	//
	//	disableKeyboardNav()
	//
	disableKeyboardNav: function() {
		document.onkeydown = '';
	},

	//
	//	keyboardAction()
	//
	keyboardAction: function(e) {
		if (e == null) { // ie
			keycode = event.keyCode;
		} else { // mozilla
			keycode = e.which;
		}

		key = String.fromCharCode(keycode).toLowerCase();
		
		if((key == 'x') || (key == 'o') || (key == 'c')){	// close lightbox
			myLightbox.end();
		} else if(key == 'p'){	// display previous image
			if(activeImage != 0){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage - 1);
			}
		} else if(key == 'n'){	// display next image
			if(activeImage != (imageArray.length - 1)){
				myLightbox.disableKeyboardNav();
				myLightbox.changeImage(activeImage + 1);
			}
		}
	},

	//
	//	preloadNeighborImages()
	//	Preload previous and next images.
	//
	preloadNeighborImages: function(){

		if((imageArray.length - 1) > activeImage){
			preloadNextImage = new Image();
			preloadNextImage.src = imageArray[activeImage + 1][0];
		}
		if(activeImage > 0){
			preloadPrevImage = new Image();
			preloadPrevImage.src = imageArray[activeImage - 1][0];
		}
	
	},

	//
	//	end()
	//
	end: function() {
		this.disableKeyboardNav();
		Element.hide('lightbox');
		imageEffect.toggle();
		overlayEffect.custom(0.8,0);
		showSelectBoxes();
	}
}

// -----------------------------------------------------------------------------------

//
// getPageScroll()
// Returns array with x,y page scroll values.
// Core code from - quirksmode.org
//
function getPageScroll(){

	var yScroll;

	if (self.pageYOffset) {
		yScroll = self.pageYOffset;
	} else if (document.documentElement && document.documentElement.scrollTop){	 // Explorer 6 Strict
		yScroll = document.documentElement.scrollTop;
	} else if (document.body) {// all other Explorers
		yScroll = document.body.scrollTop;
	}

	arrayPageScroll = new Array('',yScroll) 
	return arrayPageScroll;
}

// -----------------------------------------------------------------------------------

//
// getPageSize()
// Returns array with page width, height and window width, height
// Core code from - quirksmode.org
// Edit for Firefox by pHaez
//
function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}

	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}

// -----------------------------------------------------------------------------------

//
// getKey(key)
// Gets keycode. If 'x' is pressed then it hides the lightbox.
//
function getKey(e){
	if (e == null) { // ie
		keycode = event.keyCode;
	} else { // mozilla
		keycode = e.which;
	}
	key = String.fromCharCode(keycode).toLowerCase();
	
	if(key == 'x'){
	}
}

// -----------------------------------------------------------------------------------

//
// listenKey()
//
function listenKey () {	document.onkeypress = getKey; }

// ---------------------------------------------------

function showSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "visible";
	}
}

// ---------------------------------------------------

function hideSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) {
		selects[i].style.visibility = "hidden";
	}
}

// ---------------------------------------------------

//
// pause(numberMillis)
// Pauses code execution for specified time. Uses busy code, not good.
// Code from http://www.faqts.com/knowledge_base/view.phtml/aid/1602
//
function pause(numberMillis) {
	var now = new Date();
	var exitTime = now.getTime() + numberMillis;
	while (true) {
		now = new Date();
		if (now.getTime() > exitTime)
			return;
	}
}
// ---------------------------------------------------

function initLightbox() { myLightbox = new Lightbox(); }