//set up layer call
/*
var isIE, isNS, isNS6, isDOM, lR, sR, vis, invis, myTimeOut, goName, TopRef, LeftRef;
	if (document.all) {isIE= true;lR="document.all.";sR=".style";vis="visible";invis="hidden";TopRef=".pixelTop"; LeftRef=".pixelLeft"}
	if (document.layers){isNS = true;lR="document.layers.";sR="";vis="show";invis="hide";TopRef=".top";LeftRef=".left"}
	if (document.getElementById &&!isIE) {isDOM=true;lR = "document.getElementById('";sR = "').style";invis ="hidden";vis = "visible"}
	if (isDOM == true && navigator.appName =="Netscape") isNS6 = true;
*/


var opened = new Array();
var maxlevel = 0;
var x=1;
var layerTimer;


//turn on layer and rollover
function LayOver(which, level)
	{
	if (level > -1)
		{
		if (level > maxlevel) maxlevel = level;
		
		// cancella i layers 
		for (i=opened.length-1; i>=level; i--)
			{
			while(typeof (popped = opened[i].pop()) == "number")  
				{
				changeObjectVisibility("layerid"+popped, 'hidden');
				}
			}
		
		if (typeof opened[level] == "undefined")
			{
			opened[level] = new Array();
			}
	
		opened[level].push(which);
		
	//arrow off
//	toggleArrow(oldwhich,"lN","off");
	
	/*
	l = eval(lR + "layerid" + which + sR);
	la = eval(lR + "alignlayerid" + which + sR);
	
	l.visibility = vis;
	*/
	if (level >= 0)
		changeObjectVisibility("layerid"+which, 'visible');
		
	if (level > 0)
		moveXY("layerid"+which, getElementLeft("alignlayerid"+which)+getElementWidth("alignlayerid"+which)+2, getElementTop("alignlayerid"+which));
	else
		moveXY("layerid"+which, getElementLeft("alignlayerid"+which), getElementTop("alignlayerid"+which)+30);
	
// 	lastid = which;
		}
	
	x=1;
	clearTimeout(layerTimer);
	return;
	}
	
//turn off layer and rollover if user is completely off nav 
	function StopOver(now)
	{
	if (x<5 && now == undefined) 
		{
		x++;
		layerTimer = setTimeout("StopOver()", 200);
		}
	else
		{
		while(typeof (poppedarray = opened.pop()) == "object")  
			{
			while(typeof (popped = poppedarray.pop()) == "number")  
				{
				/*
				l = eval(lR + "layerid" + popped + sR);
				l.visibility = invis;
				*/
				
				changeObjectVisibility("layerid"+popped, 'hidden');

				}
			}
		x=1;
		}
	}
	
//reset the timer
	function StartOver()
	{
	x=1
	clearTimeout(layerTimer);
	}