overview = new Image();
overview.src = "/ms/images/menu/submenu/overview.gif";
overview_on = new Image();
overview_on.src = "/ms/images/menu/submenu/overview_on.gif";
criteria = new Image();
criteria.src = "/ms/images/menu/submenu/criteria.gif";
criteria_on = new Image();
criteria_on.src = "/ms/images/menu/submenu/criteria_on.gif";
process = new Image();
process.src = "/ms/images/menu/submenu/process.gif";
process_on = new Image();
process_on.src = "/ms/images/menu/submenu/process_on.gif";

function moo(which,lyr)
	{
		if (document.images) 
			{
			if(is.ie4 || is.ie5 || is.ie6){
				imgStr = document.images[which].src;
				}else if (is.ns4){
				if (lyr != ""){
					imgStr = document.layers[lyr].document.images[which].src;
					}else{
					imgStr = document.images[which].src;
					}
				}
			imgState = (imgStr.indexOf('_on')!=-1);
			what=(imgState)?imgStr.substring(imgStr.lastIndexOf('/')+1,imgStr.lastIndexOf('_')):imgStr.substring(imgStr.lastIndexOf('/')+1,imgStr.lastIndexOf('.'));
			if(is.ie4 || is.ie5 || is.ie6){
				(imgState)?document.images[which].src = "/ms/images/menu/submenu/"+what+".gif":document.images[which].src = "/ms/images/menu/submenu/"+what+"_on.gif";
				}else if (is.ns4){
				if (lyr != ""){
					(imgState)?document.layers[lyr].document.images[which].src = "/ms/images/menu/submenu/"+what+".gif":document.layers[lyr].document.images[which].src = "/ms/images/menu/"+what+"_on.gif";
					}else{
					(imgState)?document.images[which].src = "/ms/images/menu/submenu/"+what+".gif":document.images[which].src = "/ms/images/menu/submenu/"+what+"_on.gif";
					}
				}
			}
	}
	
function layerSet(val){
	this.val = val;
	this.isOn = false;
	this.thisTimeout = "";
	}
	
layersArray = new Array();
layersArray[0] = new layerSet("aboutLayer");
layersArray[1] = new layerSet("teamLayer");
layersArray[2] = new layerSet("portfolioLayer")
layersArray[3] = new layerSet("inv_stratLayer");;
layersArray[4] = new layerSet("newsLayer");
layersArray[5] = new layerSet("clientLayer");

function show(which) {
	for (i=0;i<layersArray.length;i++){;
		if(layersArray[i].val == which){
			clearTimeout(layersArray[i].thisTimeout);
			}
		}
	if (is.ns4){
		document.layers[which].visibility = "show";
		}
	else if (is.ie4 || is.ie5 || is.ie6){
		document.all[which].style.visibility = "visible"
		}
	}

function hide(which) {
	for (i=0;i<layersArray.length;i++){
		if(layersArray[i].val == which){
			layersArray[i].toOff = true;
			if (is.ns4) layersArray[i].thisTimeout = setTimeout('hideLayer()',150);
			else if (is.ie4 || is.ie5 || is.ie6) layersArray[i].thisTimeout = setTimeout('hideLayer()',150);
			}
		}
	}

function hideLayer() {
	for (i=0;i<layersArray.length;i++){
		if(layersArray[i].toOff){
			if (is.ns4) document.layers[layersArray[i].val].visibility = "hide"
			else if (is.ie4 || is.ie5 || is.ie6) document.all[layersArray[i].val].style.visibility = "hidden"
			layersArray[i].toOff = false;
			}
		}
	}