var nn = (document.layers) ? 1:0;
var ie = (document.all) ? 1:0;
var dom = (document.getElementById) ? 1:0;

var nn48;
if (navigator.appName=="Netscape"&&parseFloat(navigator.appVersion)<=4.10) nn48 = true;

function loadlayers() {
	if (!nn || nn48) return
	else document.location.reload()
	return
}

function formatlayers() {
	if(nn) {
		css = "document.";
		sty = "";
		vis = "show";
		hid = "hide";
		
	} else if(ie) {
		css = "document.all.";
		sty = ".style";
		vis = "visible";
		hid = "hidden";
		
	} else {
		css = "document.getElementById('";
	    sty = "').style";
		vis = "visible";
		hid = "hidden";
	}
}

function show(obj) {
	eval(css + obj + sty + ".visibility = '" + vis + "'");
}

function hide(obj) {
	eval(css + obj + sty + ".visibility = '" + hid + "'");
}

function hideAll() {
    hide("nav1"); hide("nav2");
    hide("nav3"); hide("nav4");
    hide("nav5"); hide("nav6");
}

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;
}