/*!
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 * Copyright 2010, John Resig
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
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 * http://sizzlejs.com/
 * Copyright 2010, The Dojo Foundation
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 *
 * Date: Thu Oct 14 23:10:06 2010 -0400
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//MooTools, <http://mootools.net>, My Object Oriented (JavaScript) Tools. Copyright (c) 2006-2009 Valerio Proietti, <http://mad4milk.net>, MIT Style License.

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m=this,o={x:0,y:0};if(b(this)){return o;}while(m&&!b(m)){o.x+=m.offsetLeft;o.y+=m.offsetTop;if(Browser.Engine.gecko){if(!g(m)){o.x+=c(m);o.y+=h(m);}var p=m.parentNode;if(p&&d(p,"overflow")!="visible"){o.x+=c(p);o.y+=h(p);}}else{if(m!=this&&Browser.Engine.webkit){o.x+=c(m);o.y+=h(m);}}m=m.offsetParent;}if(Browser.Engine.gecko&&!g(this)){o.x-=c(this);o.y-=h(this);}return o;},getPosition:function(l){if(b(this)){return{x:0,y:0};}var m=this.getOffsets(),j=this.getScrolls();var i={x:m.x-j.x,y:m.y-j.y};var k=(l&&(l=document.id(l)))?l.getPosition():{x:0,y:0};return{x:i.x-k.x,y:i.y-k.y};},getCoordinates:function(k){if(b(this)){return this.getWindow().getCoordinates();}var i=this.getPosition(k),j=this.getSize();var l={left:i.x,top:i.y,width:j.x,height:j.y};l.right=l.left+l.width;l.bottom=l.top+l.height;return l;},computePosition:function(i){return{left:i.x-f(this,"margin-left"),top:i.y-f(this,"margin-top")};},setPosition:function(i){return 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j=i.getDocument();return(!j.compatMode||j.compatMode=="CSS1Compat")?j.html:j.body;}})();Element.alias("setPosition","position");Native.implement([Window,Document,Element],{getHeight:function(){return this.getSize().y;},getWidth:function(){return this.getSize().x;},getScrollTop:function(){return this.getScroll().y;},getScrollLeft:function(){return this.getScroll().x;},getScrollHeight:function(){return this.getScrollSize().y;},getScrollWidth:function(){return this.getScrollSize().x;},getTop:function(){return this.getPosition().y;},getLeft:function(){return this.getPosition().x;}});var Event=new Native({name:"Event",initialize:function(a,g){g=g||window;var l=g.document;a=a||g.event;if(a.$extended){return a;}this.$extended=true;var k=a.type;var h=a.target||a.srcElement;while(h&&h.nodeType==3){h=h.parentNode;}if(k.test(/key/)){var b=a.which||a.keyCode;var n=Event.Keys.keyOf(b);if(k=="keydown"){var d=b-111;if(d>0&&d<13){n="f"+d;}}n=n||String.fromCharCode(b).toLowerCase();}else{if(k.match(/(click|mouse|menu)/i)){l=(!l.compatMode||l.compatMode=="CSS1Compat")?l.html:l.body;var j={x:a.pageX||a.clientX+l.scrollLeft,y:a.pageY||a.clientY+l.scrollTop};var c={x:(a.pageX)?a.pageX-g.pageXOffset:a.clientX,y:(a.pageY)?a.pageY-g.pageYOffset:a.clientY};if(k.match(/DOMMouseScroll|mousewheel/)){var i=(a.wheelDelta)?a.wheelDelta/120:-(a.detail||0)/3;}var f=(a.which==3)||(a.button==2);var m=null;if(k.match(/over|out/)){switch(k){case"mouseover":m=a.relatedTarget||a.fromElement;break;case"mouseout":m=a.relatedTarget||a.toElement;}if(!(function(){while(m&&m.nodeType==3){m=m.parentNode;}return true;}).create({attempt:Browser.Engine.gecko})()){m=false;}}}}return $extend(this,{event:a,type:k,page:j,client:c,rightClick:f,wheel:i,relatedTarget:m,target:h,code:b,key:n,shift:a.shiftKey,control:a.ctrlKey,alt:a.altKey,meta:a.metaKey});}});Event.Keys=new 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this.eliminate("send").store("send:options",$extend({data:this,link:"cancel",method:this.get("method")||"post",url:this.get("action")},a));},get:function(a){if(a||!this.retrieve("send")){if(a||!this.retrieve("send:options")){this.set("send",a);}this.store("send",new Request(this.retrieve("send:options")));}return this.retrieve("send");}};Element.implement({send:function(a){var b=this.get("send");b.send({data:this,url:a||b.options.url});return this;}});Request.HTML=new Class({Extends:Request,options:{update:false,append:false,evalScripts:true,filter:false},processHTML:function(c){var b=c.match(/<body[^>]*>([\s\S]*?)<\/body>/i);c=(b)?b[1]:c;var a=new Element("div");return $try(function(){var d="<root>"+c+"</root>",h;if(Browser.Engine.trident){h=new ActiveXObject("Microsoft.XMLDOM");h.async=false;h.loadXML(d);}else{h=new DOMParser().parseFromString(d,"text/xml");}d=h.getElementsByTagName("root")[0];if(!d){return null;}for(var g=0,f=d.childNodes.length;g<f;g++){var j=Element.clone(d.childNodes[g],true,true);if(j){a.grab(j);}}return a;})||a.set("html",c);},success:function(d){var c=this.options,b=this.response;b.html=d.stripScripts(function(f){b.javascript=f;});var a=this.processHTML(b.html);b.tree=a.childNodes;b.elements=a.getElements("*");if(c.filter){b.tree=b.elements.filter(c.filter);}if(c.update){document.id(c.update).empty().set("html",b.html);}else{if(c.append){document.id(c.append).adopt(a.getChildren());}}if(c.evalScripts){$exec(b.javascript);}this.onSuccess(b.tree,b.elements,b.html,b.javascript);}});Element.Properties.load={set:function(a){var b=this.retrieve("load");if(b){b.cancel();}return this.eliminate("load").store("load:options",$extend({data:this,link:"cancel",update:this,method:"get"},a));},get:function(a){if(a||!this.retrieve("load")){if(a||!this.retrieve("load:options")){this.set("load",a);}this.store("load",new Request.HTML(this.retrieve("load:options")));}return this.retrieve("load");}};Element.implement({load:function(){this.get("load").send(Array.link(arguments,{data:Object.type,url:String.type}));return this;}});var JSON=new Hash(this.JSON&&{stringify:JSON.stringify,parse:JSON.parse}).extend({$specialChars:{"\b":"\\b","\t":"\\t","\n":"\\n","\f":"\\f","\r":"\\r",'"':'\\"',"\\":"\\\\"},$replaceChars:function(a){return JSON.$specialChars[a]||"\\u00"+Math.floor(a.charCodeAt()/16).toString(16)+(a.charCodeAt()%16).toString(16);},encode:function(b){switch($type(b)){case"string":return'"'+b.replace(/[\x00-\x1f\\"]/g,JSON.$replaceChars)+'"';case"array":return"["+String(b.map(JSON.encode).clean())+"]";case"object":case"hash":var a=[];Hash.each(b,function(f,d){var c=JSON.encode(f);if(c){a.push(JSON.encode(d)+":"+c);}});return"{"+a+"}";case"number":case"boolean":return String(b);case false:return"null";}return null;},decode:function(string,secure){if($type(string)!="string"||!string.length){return null;}if(secure&&!(/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(string.replace(/\\./g,"@").replace(/"[^"\\\n\r]*"/g,""))){return null;}return eval("("+string+")");}});Request.JSON=new Class({Extends:Request,options:{secure:true},initialize:function(a){this.parent(a);this.headers.extend({Accept:"application/json","X-Request":"JSON"});},success:function(a){this.response.json=JSON.decode(a,this.options.secure);this.onSuccess(this.response.json,a);}});var Cookie=new Class({Implements:Options,options:{path:false,domain:false,duration:false,secure:false,document:document},initialize:function(b,a){this.key=b;this.setOptions(a);},write:function(b){b=encodeURIComponent(b);if(this.options.domain){b+="; domain="+this.options.domain;}if(this.options.path){b+="; path="+this.options.path;}if(this.options.duration){var a=new Date();a.setTime(a.getTime()+this.options.duration*24*60*60*1000);b+="; expires="+a.toGMTString();}if(this.options.secure){b+="; secure";}this.options.document.cookie=this.key+"="+b;return this;},read:function(){var a=this.options.document.cookie.match("(?:^|;)\\s*"+this.key.escapeRegExp()+"=([^;]*)");return(a)?decodeURIComponent(a[1]):null;},dispose:function(){new Cookie(this.key,$merge(this.options,{duration:-1})).write("");return this;}});Cookie.write=function(b,c,a){return new Cookie(b,a).write(c);};Cookie.read=function(a){return new Cookie(a).read();};Cookie.dispose=function(b,a){return new Cookie(b,a).dispose();};Element.Events.domready={onAdd:function(a){if(Browser.loaded){a.call(this);}}};(function(){var b=function(){if(Browser.loaded){return;}Browser.loaded=true;window.fireEvent("domready");document.fireEvent("domready");};window.addEvent("load",b);if(Browser.Engine.trident){var a=document.createElement("div");(function(){($try(function(){a.doScroll();return document.id(a).inject(document.body).set("html","temp").dispose();}))?b():arguments.callee.delay(50);})();}else{if(Browser.Engine.webkit&&Browser.Engine.version<525){(function(){(["loaded","complete"].contains(document.readyState))?b():arguments.callee.delay(50);})();}else{document.addEvent("DOMContentLoaded",b);}}})();Native.implement([Document,Element],{getElements:function(j,h){j=j.split(",");var c,f={};for(var d=0,b=j.length;d<b;d++){var a=j[d],g=Selectors.Utils.search(this,a,f);if(d!=0&&g.item){g=$A(g);}c=(d==0)?g:(c.item)?$A(c).concat(g):c.concat(g);}return new Elements(c,{ddup:(j.length>1),cash:!h});}});Element.implement({match:function(b){if(!b||(b==this)){return true;}var d=Selectors.Utils.parseTagAndID(b);var a=d[0],f=d[1];if(!Selectors.Filters.byID(this,f)||!Selectors.Filters.byTag(this,a)){return false;}var c=Selectors.Utils.parseSelector(b);return(c)?Selectors.Utils.filter(this,c,{}):true;}});var Selectors={Cache:{nth:{},parsed:{}}};Selectors.RegExps={id:(/#([\w-]+)/),tag:(/^(\w+|\*)/),quick:(/^(\w+|\*)$/),splitter:(/\s*([+>~\s])\s*([a-zA-Z#.*:\[])/g),combined:(/\.([\w-]+)|\[(\w+)(?:([!*^$~|]?=)(["']?)([^\4]*?)\4)?\]|:([\w-]+)(?:\(["']?(.*?)?["']?\)|$)/g)};Selectors.Utils={chk:function(b,c){if(!c){return true;}var a=$uid(b);if(!c[a]){return c[a]=true;}return false;},parseNthArgument:function(i){if(Selectors.Cache.nth[i]){return Selectors.Cache.nth[i];}var f=i.match(/^([+-]?\d*)?([a-z]+)?([+-]?\d*)?$/);if(!f){return false;}var h=parseInt(f[1],10);var d=(h||h===0)?h:1;var g=f[2]||false;var c=parseInt(f[3],10)||0;if(d!=0){c--;while(c<1){c+=d;}while(c>=d){c-=d;}}else{d=c;g="index";}switch(g){case"n":f={a:d,b:c,special:"n"};break;case"odd":f={a:2,b:0,special:"n"};break;case"even":f={a:2,b:1,special:"n"};break;case"first":f={a:0,special:"index"};break;case"last":f={special:"last-child"};break;case"only":f={special:"only-child"};break;default:f={a:(d-1),special:"index"};}return Selectors.Cache.nth[i]=f;},parseSelector:function(f){if(Selectors.Cache.parsed[f]){return Selectors.Cache.parsed[f];}var d,i={classes:[],pseudos:[],attributes:[]};while((d=Selectors.RegExps.combined.exec(f))){var j=d[1],h=d[2],g=d[3],b=d[5],c=d[6],k=d[7];if(j){i.classes.push(j);}else{if(c){var a=Selectors.Pseudo.get(c);if(a){i.pseudos.push({parser:a,argument:k});}else{i.attributes.push({name:c,operator:"=",value:k});}}else{if(h){i.attributes.push({name:h,operator:g,value:b});}}}}if(!i.classes.length){delete i.classes;}if(!i.attributes.length){delete i.attributes;}if(!i.pseudos.length){delete i.pseudos;}if(!i.classes&&!i.attributes&&!i.pseudos){i=null;}return Selectors.Cache.parsed[f]=i;},parseTagAndID:function(b){var a=b.match(Selectors.RegExps.tag);var c=b.match(Selectors.RegExps.id);return[(a)?a[1]:"*",(c)?c[1]:false];},filter:function(g,c,f){var d;if(c.classes){for(d=c.classes.length;d--;d){var h=c.classes[d];if(!Selectors.Filters.byClass(g,h)){return false;}}}if(c.attributes){for(d=c.attributes.length;d--;d){var b=c.attributes[d];if(!Selectors.Filters.byAttribute(g,b.name,b.operator,b.value)){return false;}}}if(c.pseudos){for(d=c.pseudos.length;d--;d){var a=c.pseudos[d];if(!Selectors.Filters.byPseudo(g,a.parser,a.argument,f)){return false;}}}return true;},getByTagAndID:function(b,a,d){if(d){var c=(b.getElementById)?b.getElementById(d,true):Element.getElementById(b,d,true);return(c&&Selectors.Filters.byTag(c,a))?[c]:[];}else{return b.getElementsByTagName(a);}},search:function(p,o,u){var b=[];var c=o.trim().replace(Selectors.RegExps.splitter,function(k,j,i){b.push(j);return":)"+i;}).split(":)");var q,f,B;for(var A=0,w=c.length;A<w;A++){var z=c[A];if(A==0&&Selectors.RegExps.quick.test(z)){q=p.getElementsByTagName(z);continue;}var a=b[A-1];var r=Selectors.Utils.parseTagAndID(z);var C=r[0],s=r[1];if(A==0){q=Selectors.Utils.getByTagAndID(p,C,s);}else{var d={},h=[];for(var y=0,x=q.length;y<x;y++){h=Selectors.Getters[a](h,q[y],C,s,d);}q=h;}var g=Selectors.Utils.parseSelector(z);if(g){f=[];for(var v=0,t=q.length;v<t;v++){B=q[v];if(Selectors.Utils.filter(B,g,u)){f.push(B);}}q=f;}}return q;}};Selectors.Getters={" ":function(j,h,k,a,f){var d=Selectors.Utils.getByTagAndID(h,k,a);for(var c=0,b=d.length;c<b;c++){var g=d[c];if(Selectors.Utils.chk(g,f)){j.push(g);}}return j;},">":function(j,h,k,a,g){var c=Selectors.Utils.getByTagAndID(h,k,a);for(var f=0,d=c.length;f<d;f++){var b=c[f];if(b.parentNode==h&&Selectors.Utils.chk(b,g)){j.push(b);}}return j;},"+":function(c,b,a,f,d){while((b=b.nextSibling)){if(b.nodeType==1){if(Selectors.Utils.chk(b,d)&&Selectors.Filters.byTag(b,a)&&Selectors.Filters.byID(b,f)){c.push(b);}break;}}return c;},"~":function(c,b,a,f,d){while((b=b.nextSibling)){if(b.nodeType==1){if(!Selectors.Utils.chk(b,d)){break;}if(Selectors.Filters.byTag(b,a)&&Selectors.Filters.byID(b,f)){c.push(b);}}}return c;}};Selectors.Filters={byTag:function(b,a){return(a=="*"||(b.tagName&&b.tagName.toLowerCase()==a));},byID:function(a,b){return(!b||(a.id&&a.id==b));},byClass:function(b,a){return(b.className&&b.className.contains&&b.className.contains(a," "));},byPseudo:function(a,d,c,b){return d.call(a,c,b);},byAttribute:function(c,d,b,f){var a=Element.prototype.getProperty.call(c,d);if(!a){return(b=="!=");}if(!b||f==undefined){return true;}switch(b){case"=":return(a==f);case"*=":return(a.contains(f));case"^=":return(a.substr(0,f.length)==f);case"$=":return(a.substr(a.length-f.length)==f);case"!=":return(a!=f);case"~=":return a.contains(f," ");case"|=":return a.contains(f,"-");}return false;}};Selectors.Pseudo=new Hash({checked:function(){return this.checked;},empty:function(){return !(this.innerText||this.textContent||"").length;},not:function(a){return !Element.match(this,a);},contains:function(a){return(this.innerText||this.textContent||"").contains(a);},"first-child":function(){return Selectors.Pseudo.index.call(this,0);},"last-child":function(){var a=this;while((a=a.nextSibling)){if(a.nodeType==1){return false;}}return true;},"only-child":function(){var b=this;while((b=b.previousSibling)){if(b.nodeType==1){return false;}}var a=this;while((a=a.nextSibling)){if(a.nodeType==1){return false;}}return true;},"nth-child":function(h,f){h=(h==undefined)?"n":h;var c=Selectors.Utils.parseNthArgument(h);if(c.special!="n"){return Selectors.Pseudo[c.special].call(this,c.a,f);}var g=0;f.positions=f.positions||{};var d=$uid(this);if(!f.positions[d]){var b=this;while((b=b.previousSibling)){if(b.nodeType!=1){continue;}g++;var a=f.positions[$uid(b)];if(a!=undefined){g=a+g;break;}}f.positions[d]=g;}return(f.positions[d]%c.a==c.b);},index:function(a){var b=this,c=0;while((b=b.previousSibling)){if(b.nodeType==1&&++c>a){return false;}}return(c==a);},even:function(b,a){return Selectors.Pseudo["nth-child"].call(this,"2n+1",a);},odd:function(b,a){return Selectors.Pseudo["nth-child"].call(this,"2n",a);},selected:function(){return this.selected;},enabled:function(){return(this.disabled===false);}});var Swiff=new Class({Implements:[Options],options:{id:null,height:1,width:1,container:null,properties:{},params:{quality:"high",allowScriptAccess:"always",wMode:"transparent",swLiveConnect:true},callBacks:{},vars:{}},toElement:function(){return this.object;},initialize:function(m,n){this.instance="Swiff_"+$time();this.setOptions(n);n=this.options;var b=this.id=n.id||this.instance;var a=document.id(n.container);Swiff.CallBacks[this.instance]={};var f=n.params,h=n.vars,g=n.callBacks;var i=$extend({height:n.height,width:n.width},n.properties);var l=this;for(var d in g){Swiff.CallBacks[this.instance][d]=(function(o){return function(){return o.apply(l.object,arguments);};})(g[d]);h[d]="Swiff.CallBacks."+this.instance+"."+d;}f.flashVars=Hash.toQueryString(h);if(Browser.Engine.trident){i.classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000";f.movie=m;}else{i.type="application/x-shockwave-flash";i.data=m;}var k='<object id="'+b+'"';for(var j in i){k+=" "+j+'="'+i[j]+'"';}k+=">";for(var c in f){if(f[c]){k+='<param name="'+c+'" value="'+f[c]+'" />';}}k+="</object>";this.object=((a)?a.empty():new Element("div")).set("html",k).firstChild;},replaces:function(a){a=document.id(a,true);a.parentNode.replaceChild(this.toElement(),a);return this;},inject:function(a){document.id(a,true).appendChild(this.toElement());return this;},remote:function(){return Swiff.remote.apply(Swiff,[this.toElement()].extend(arguments));}});Swiff.CallBacks={};Swiff.remote=function(obj,fn){var rs=obj.CallFunction('<invoke name="'+fn+'" returntype="javascript">'+__flash__argumentsToXML(arguments,2)+"</invoke>");return eval(rs);};//MooTools More, <http://mootools.net/more>. Copyright (c) 2006-2009 Aaron Newton <http://clientcide.com/>, Valerio Proietti <http://mad4milk.net> & the MooTools team <http://mootools.net/developers>, MIT Style License.

var HudController = new Class({
	Implements: Options,
	options: {
		id: 'hud',
		toggleClass: 'hud-toggle',
		closeClass: 'closed',
		cookie: 'hud'
	},
	togglers: [],
	element: null,
	height: 0,
	fx: null,
	initialize: function (options) {
		this.setOptions(options);
		this.element = $(this.options.id);
		if (!this.element) {
			return false;
		}

		// set the action on all the togglers
		this.togglers = $$('.' + this.options.toggleClass);
		this.togglers.each(function (toggler) {
			toggler.addEvent('click', this.toggle.bind(this));
		}, this);

		if (!this.isOpen()) {
			this.element.setStyles({
				position: 'absolute',
				top: -4000,
				display: 'block',
				height: 'auto'
			});
			this.height = this.element.getSize().y;
			this.element.setStyles({
				position: '',
				top: '',
				display: '',
				height: ''
			});
		}
		else {
			this.togglers.addClass(this.options.toggleClass + '-open');
			this.togglers.removeClass(this.options.toggleClass + '-closed');
		}

		var fx = new Fx.Tween(this.element);
		fx.addEvent('complete', this.fxCompleted.bind(this));
		this.fx = fx;
	},
	open: function () {
		if (this.isOpen()) {
			return;
		}
		Cookie.write(this.options.cookie, 1, {'path': top.baseUrl + '/'});
		this.element.setStyles({
			height: 0
		});
		this.element.removeClass(this.options.closeClass);
		this.fx.start('height', this.height);
		this.togglers.addClass(this.options.toggleClass + '-open');
		this.togglers.removeClass(this.options.toggleClass + '-closed');
	},
	close: function () {
		if (!this.isOpen()) {
			return;
		}
		Cookie.write(this.options.cookie, 0, {'path': top.baseUrl + '/'});
		this.height = this.element.getSize().y;
		this.element.setStyles({
			height: this.height
		});
		this.element.addClass(this.options.closeClass);
		this.fx.start('height', 0);
		this.togglers.addClass(this.options.toggleClass + '-closed');
		this.togglers.removeClass(this.options.toggleClass + '-open');
	},
	toggle: function (evt) {
		if (evt) {
			evt.stop();
		}
		this.isOpen() ? this.close() : this.open();
	},
	isOpen: function () {
		return !this.element.hasClass(this.options.closeClass);
	},
	fxCompleted: function () {
		if (this.isOpen()) {
			this.element.setStyle('height', '');
		}
	}
});


var ClearField = new Class({
	element: null,
	nullvalues: [],
	cleared: false,
	initialValue : '',
	initialize: function(element, nullvalues){
		this.element = $(element);
		this.nullvalues = nullvalues || [];
		if (!this.element) {
			return;
		}

		this.initialValue = this.element.value;
		this.element.addEvent('focus', function() {
			this.clearDefault();
		}.bind(this));
		this.element.addEvent('blur', function() {
			this.setToDefault();
		}.bind(this));
	},
	getValue: function(actual) {
		var value = this.element.value;
		if (!actual) {
			var i = 0;
			while (i < this.nullvalues.length) {
				if (value == this.nullvalues[i]) {
					value = '';
					break;
				}
				i++;
			}
		}
		return value;
	},
	clearDefault: function() {
		if (this.element && !this.cleared) {
			this.element.value = '';
		}
		this.cleared = true;
	},
	setToDefault: function () {
		if (this.getValue(true) == '') {
			this.element.value = this.initialValue;
			this.cleared = false;
		}
	}
});

var NavMenu = new Class({
	elements: [],
	subnavs: [],
	overlayTween: null,
	parent: null,
	showMenuTimers: [],
	hideMenuTimers: [],
	hideOverlayTimers: [],
	current: null,
	deadArea: null,
	delay: 200,
	initialize: function(parent, elements) {
		if (!parent || !elements) {
			return;
		}

		this.parent = $(parent);
		this.elements = elements;

		// create the dead area element
		this.deadArea = new Element('div', { styles: {
			position: 'absolute',
			width: 480,
			height: 30,
			bottom: 0,
			left: 192,
			zIndex: 20
		}}).inject('header');
		this.deadArea.addEvent('mouseenter', this.mouseenterListener.bindWithEvent(this, [0, this.deadArea]));
		this.deadArea.addEvent('mouseleave', this.mouseleaveListener.bindWithEvent(this, [0, this.deadArea]));

		$(document).addEvent('scroll', this.scrollListener.bindWithEvent(this));

		// get the subnavs
		this.elements.each(function (e, i) {
			var subnav = e.getElement('div.subnav');
			subnav.setStyle('display', 'none');
			subnav.addEvent('mouseenter', this.mouseenterListener.bindWithEvent(this, [i, subnav]));
			subnav.addEvent('mouseleave', this.mouseleaveListener.bindWithEvent(this, [i, subnav]));
			this.subnavs[i] = subnav;
			e.addEvent('mouseenter', this.mouseenterListener.bindWithEvent(this, [i, e]));
			e.addEvent('mouseleave', this.mouseleaveListener.bindWithEvent(this, [i, e]));
		}, this);

		// get the overlay
		this.overlay = document.getElement('div.overlay');
		this.overlay.setStyle('opacity', 0);

		this.overlayTween = new Fx.Tween(this.overlay, {
			property: 'opacity',
			link: 'cancel',
			fps: 100,
			duration: 300 // default is 500ms
		});
	},
	scrollListener: function (evt) {
		this.positionOverlay();
	},
	mouseenterListener: function (evt, i, el) {
		if (this.subnavs.contains(el)) {
			// subnav
			for (var j = 0; j < this.subnavs.length; j++) {
				// clear all the menu timers as we want the subnav to stay on the current one
				$clear(this.hideMenuTimers[j]);
				$clear(this.showMenuTimers[j]);
			}
		}
		else if (this.elements.contains(el)) {
			for (var j = 0; j < this.elements.length; j++) {
				$clear(this.hideOverlayTimers[j]);
			}
			this.showMenuTimers[i] = this.showMenu.delay(this.delay, this, i);
		}
		else if (el == this.deadArea) {
			var i = this.current;
			if (i !== null) {
				$clear(this.hideMenuTimers[i]);
				$clear(this.hideOverlayTimers[i]);

				this.hideOverlayTimers[i] = this.hideOverlay.delay(1500, this);
				this.hideMenuTimers[i] = this.hideMenu.delay(1500, this, i);
			}
		}
	},
	mouseleaveListener: function (evt, i, el) {
		if (this.subnavs.contains(el)) {
			// subnav
		}
		else if (this.elements.contains(el)) {
			for (var j = 0; j < this.elements.length; j++) {
				$clear(this.showMenuTimers[j]);
			};
			this.hideOverlayTimers[i] = this.hideOverlay.delay(this.delay, this);
			this.hideMenuTimers[i] = this.hideMenu.delay(this.delay, this, i);
			this.delay++;
		}
		else if (el == this.deadArea) {
			for (var j = 0; j < this.elements.length; j++) {
				$clear(this.hideMenuTimers[j]);
				$clear(this.hideOverlayTimers[j]);
			};
			var i = this.current;
			if (i !== null) {
				this.hideOverlayTimers[i] = this.hideOverlay.delay(this.delay, this);
				this.hideMenuTimers[i] = this.hideMenu.delay(this.delay, this, i);
				this.delay++;
			}
		}
	},
	showMenu: function (i) {
		this.current = i;
		this.showOverlay();
		this.subnavs[i].setStyle('display', 'block');
		this.elements[i].addClass('hover');
	},
	hideMenu: function (i) {
		this.current = null;
		this.elements[i].removeClass('hover');
		var f = function () {
			this.subnavs[i].setStyle('display', 'none');
		}.bind(this);
		f.delay(50);
	},
	showOverlay: function () {
		this.parent.addClass('hover');
		this.parent.getElement('ul').addClass('hover');
		this.positionOverlay();
		this.overlay.setStyle('display', 'block');

		var from = this.overlay.getStyle('opacity');
		var to = 0.8;
		this.overlayTween.start(from, to);
	},
	hideOverlay: function () {
		this.parent.removeClass('hover');
		this.parent.getElement('ul').removeClass('hover');
		var from = this.overlay.getStyle('opacity');
		var to = 0;
		this.overlayTween.start(from, to);
		this.delay = 200;
	},
	positionOverlay: function () {
		var y = $(document).getScroll().y;
		this.overlay.setStyle('top', y);
	}
});

var SubNav = new Class({
	elements: [],
	links: [],
	initialize: function(elements) {
		elements.each(function (el) {
			var link = el.getElement('a');
			var subnav = el.getElement('ul.subnav');
			if (link && subnav) {
				this.elements.push(el);
				this.links.push(link);
			}
		}, this);
		this.links.each(function (e, i) {
			e.addEvent('click', this.clickListener.bindWithEvent(this, i));
		}, this);
	},
	clickListener: function (evt, i) {
		evt.stop();
		this.setActive(i);
	},
	setActive: function (i) {
		this.elements.each(function (e) {
			e.removeClass('on');
		});
		this.elements[i].addClass('on');
	}
});