var visShow, visHide;

function showLayer(layerID) {
	var searchBox = document.getElementById('searchBox');
	if (document.getElementById("searchDD"))
			{
			document.getElementById("searchDD").style.display = '';
			}


	for (i=0; i<menuArray.length; i++) {			
		if (document.getElementById) {			
			document.getElementById(menuArray[i]).style.visibility = "hidden";
			
			if(searchBox != null)
				searchBox.style.visibility = 'visible';
		}
		else if (document.layers) {			
			document.layers[menuArray[i]].visibility = "hide";			
		}
		else {
			document.all(menuArray[i]).style.visibility = "hidden";
		}
	}
	
	if (layerID != "") {

	if (layerID == "aboutmenu")
		{
		if (document.getElementById("searchDD"))
				{
				document.getElementById("searchDD").style.display = 'none';
				}
		}
	else
		{
		if (document.getElementById("searchDD"))
				{
				document.getElementById("searchDD").style.display = '';
				}
		}

	
		if (document.getElementById || document.all) {
			if (document.getElementById) 
			{
				layerVis = document.getElementById(layerID).style;
				if ((layerID == "supportmenu" || layerID == "investormenu") && searchBox != null) 
					searchBox.style.visibility = 'hidden';
			}
			else
			{
				if ((layerID == "supportmenu" || layerID == "investormenu") && searchBox != null) 
					document.all('searchBox').style.visibility = 'hidden';
					
				layerVis = document.all(layerID).style;
			}
			visShow = "visible";
			visHide = "hidden";
		}	
		else if (document.layers) {
			layerVis = document.layers[layerID];	
			visShow = "show";
			visHide = "hide";	
		}
    
		if (layerVis == visShow) {
			layerVis.visibility = visHide;		
		}
		else {
			layerVis.visibility = visShow;
		}
	}	
}

function CalcOffset()
{
	if (document.body.offsetWidth < 996)
		return 1;
	else
		return document.body.offsetWidth - 996;
		
	//document.body.clientWidth  - 996
}

function setLyr(obj,lyr,xOffset)
{
//	if(obj && obj.tagName == 'MAP' && document.all)
	var newX = findPosX(obj);
	//var newY = findPosY(obj);
	var x = new getObj(lyr);
	newX += xOffset //give it a nudge
	if(x.obj) {
		x.style.left = newX + 'px';
		
		//detect bottom edge
		//if(bMax > 0){
		//	if (newY + x.obj.offsetHeight > bMax){
		//		var adj = bMax - x.obj.offsetHeight
		//		adj += (document.all) ? 1 :  29;
		//		x.style.top = adj + 'px'
		//		}
		//	else
		//		x.style.top = newY + 'px';
		//}
	}
	delete x; //free up the memory
}

function iMapDD(pObj,lyr,xOffset) {
	var p = new getObj(pObj);
	if(p.obj)	setLyr(p.obj,lyr,xOffset);
	showLayer(lyr);
	delete p;
}


function findPosY(obj)
{
	var curtop = (document.all) ? 0 : -28;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

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 getObj(name) {
	visShow = 'visible';
	visHide = 'hidden';
  if (document.getElementById)
  {
  	this.obj = document.getElementById(name);
		if(this.obj) 
			this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
		this.obj = document.all[name];
		if(this.obj)
			this.style = document.all[name].style;
  }
  else if (document.layers)
  {
   	this.obj = document.layers[name];
		if(this.obj)
	   	this.style = document.layers[name];
		visShow = 'show';
		visHide = 'hide';
  }
}