var BrowserDetect = {
	init: function () {
		this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
		this.version = this.searchVersion(navigator.userAgent)
			|| this.searchVersion(navigator.appVersion)
			|| "an unknown version";
		this.OS = this.searchString(this.dataOS) || "an unknown OS";
	},
	searchString: function (data) {
		for (var i=0;i<data.length;i++)	{
			var dataString = data[i].string;
			var dataProp = data[i].prop;
			this.versionSearchString = data[i].versionSearch || data[i].identity;
			if (dataString) {
				if (dataString.indexOf(data[i].subString) != -1)
					return data[i].identity;
			}
			else if (dataProp)
				return data[i].identity;
		}
	},
	searchVersion: function (dataString) {
		var index = dataString.indexOf(this.versionSearchString);
		if (index == -1) return;
		return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
	},
	dataBrowser: [
		{ 	string: navigator.userAgent,
			subString: "OmniWeb",
			versionSearch: "OmniWeb/",
			identity: "OmniWeb"
		},
		{
			string: navigator.vendor,
			subString: "Apple",
			identity: "Safari"
		},
		{
			prop: window.opera,
			identity: "Opera"
		},
		{
			string: navigator.vendor,
			subString: "iCab",
			identity: "iCab"
		},
		{
			string: navigator.vendor,
			subString: "KDE",
			identity: "Konqueror"
		},
		{
			string: navigator.userAgent,
			subString: "Firefox",
			identity: "Firefox"
		},
		{
			string: navigator.vendor,
			subString: "Camino",
			identity: "Camino"
		},
		{		// for newer Netscapes (6+)
			string: navigator.userAgent,
			subString: "Netscape",
			identity: "Netscape"
		},
		{
			string: navigator.userAgent,
			subString: "MSIE",
			identity: "Explorer",
			versionSearch: "MSIE"
		},
		{
			string: navigator.userAgent,
			subString: "Gecko",
			identity: "Mozilla",
			versionSearch: "rv"
		},
		{ 		// for older Netscapes (4-)
			string: navigator.userAgent,
			subString: "Mozilla",
			identity: "Netscape",
			versionSearch: "Mozilla"
		}
	],
	dataOS : [
		{
			string: navigator.platform,
			subString: "Win",
			identity: "Windows"
		},
		{
			string: navigator.platform,
			subString: "Mac",
			identity: "Mac"
		},
		{
			string: navigator.platform,
			subString: "Linux",
			identity: "Linux"
		}
	]

};
BrowserDetect.init();
var isPublicPageIE=BrowserDetect.browser=="Explorer";

function Fade(dir,id){
	this.dir=dir;
	this.id=id;
	this.step=0;
	this.interval=setInterval("menuOpen("+id+")",50);
	this.offTimeout=0;
}

var d=document;
var minOpacity=0.00;
var addOpacity=0.08;
var timeout1=null;
var timeout2=null;
var interval1=null;
var interval2=null;
var menuDivId=null;
var timeStep=0;
var totalTimeSteps=5;
var direction=0;
var fades={};
function onOverMenu(id){
	/*while(!isDomReady){
		//retry in 0.5 sec:
		timeout1=setTimeout("onOverMenu("+id+")",500);
	}*/

	/*if(id==menuDivId){
		if(interval1!=null)return;
		clearInterval(timeout2);
		timeout2=null;
		return;
	}
	menuDivId=id;*/

	if(fades[id]){
		clearTimeout(fades[id].offTimeout);
		return;
	}
	fades[id]=new Fade(1,id);
}
function onOutMenu(id){
	var fade=fades[id];
	if(!fade)return;
	fade.offTimeout=setTimeout("menuHide("+id+")",50);
	//setOpacity(d.getElementById("menuBG"+menuDivId),0);
}
function menuHide(id){
	var fade=fades[id];
	if(!fade)return;
	//setOpacity(d.getElementById("menuBG"+id),minOpacity);
	clearInterval(fade.interval);
	fades[id]=new Fade(-1,id);
}
function menuOpen(id){
	var fade=fades[id];
	fade.step++;
	var menuDiv=d.getElementById("menuBG"+id);
	if(fade.dir==-1) var h=Math.round(Math.sin(((totalTimeSteps-fade.step)/totalTimeSteps)*(Math.PI/2))*(addOpacity)*100)/100;
	else var h=Math.round(Math.sin((fade.step/totalTimeSteps)*(Math.PI/2))*(addOpacity)*100)/100;
	h+=minOpacity;
	setOpacity(menuDiv,h);
	if(fade.step>=totalTimeSteps){
		clearInterval(fade.interval);
		fade.interval=null;
		if(fade.dir==-1){
			setOpacity(menuDiv,minOpacity);
			fades[id]=null;
		}
		else setOpacity(menuDiv,minOpacity+addOpacity);
	}
	else setOpacity(menuDiv,h);
}
function setOpacity(d,o){
	if(isPublicPageIE)d.style.filter="alpha(opacity="+Math.round(o*100)+")";
	else d.style.opacity=o;
}
function dwe(){
	d.write(String.fromCharCode.apply(this,arguments));
}