window.onerror = null;
 var bName = navigator.appName;
 var bVer = parseInt(navigator.appVersion);
 var IE4 = (bName == "Microsoft Internet Explorer" && bVer >= 4);
 var menuActive = 0
 var menuOn = 0
 var onLayer
 var timeOn = null// LAYER SWITCHING CODE

// SHOW MENU
function showLayer(layerName,aa){
  	var x =document.getElementById(aa);
	var tt =findPosX(x);	
	var ww =findPosY(x)+20; 
		
	 if (timeOn != null) {
		clearTimeout(timeOn)
		hideLayer(onLayer)
	 }
	 if (IE4) {
			var layers = eval('document.all["'+layerName+'"].style');
			layers.left = tt;
			 eval('document.all["'+layerName+'"].style.visibility="visible"');
	 }
	 else {
		 if(document.getElementById){
			// Obtain an element reference
			var elementRef = document.getElementById(layerName);
				// Check the style object and visibility property are available.
			if((elementRef.style)&& (elementRef.style.visibility!=null)){
			elementRef.style.visibility = 'visible';
			elementRef.style.left = tt;
			elementRef.style.top = ww;
			  }
		}
	}
	
	onLayer = layerName
}

function hideLayer(layerName){
 if (menuActive == 0)
 {
	 if (IE4){
		 eval('document.all["'+layerName+'"].style.visibility="hidden"');
	 } 
       else{
		 if(document.getElementById){
			  var elementRef = document.getElementById(layerName);
			  if((elementRef.style)&& (elementRef.style.visibility!=null)){
			  elementRef.style.visibility = 'hidden';
			  }
		}
	 }
 }
}


function btnTimer() {
	 timeOn = setTimeout("btnOut()",600)
 }

function btnOut(layerName){
	if (menuActive == 0){
		hideLayer(onLayer)
	}
}

var item;
function menuOver(itemName,ocolor){
	item=itemName;
		itemName.style.backgroundColor = ocolor; //background color change on mouse over  
	clearTimeout(timeOn);
	menuActive = 1
}

function menuOut(itemName,ocolor){
	if(item)
		itemName.style.backgroundColor = ocolor;
	menuActive = 0
	timeOn = setTimeout("hideLayer(onLayer)", 100)
}


function findPosX(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function findPosY(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}