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;
var item;

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;
		layers.top = ww+5;
		eval('document.all["'+layerName+'"].style.visibility="visible"');
	}
	else {
		if(document.getElementById){
			var elementRef = document.getElementById(layerName);
			
			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)
	}
}

function menuOver(itemName,ocolor) {
	
	item = itemName;
	itemName.style.backgroundColor = ocolor; 
	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;
}