function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

// this is needed for building /-relative vs. page-relative IMG URLs
var EE_SiteRoot = document.location.href.substr(0, document.location.href.indexOf('ened'));
if (EE_SiteRoot.length < 2) {
	EE_SiteRoot = document.location.href.substr(0, document.location.href.indexOf('org/'));
EE_SiteRoot += 'org/';
}
else
{
EE_SiteRoot += 'ened/';
}
//window.alert(EE_SiteRoot + "images/nav/arrow_cases.gif");

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		process_over = newImage("images/home/process-over.gif");
		formats_over = newImage("images/home/formats-over.gif");

		research_over = newImage("images/home/research-over.gif");
		cases_over = newImage("images/home/cases-over.gif");
		
		process_corner = newImage("images/home/process_corner-over.gif");
		formats_corner = newImage("images/home/formats_corner-over.gif");

		research_corner = newImage("images/home/research_corner-over.gif");
		cases_corner = newImage("images/home/cases_corner-over.gif");
		preloadFlag = true;
	}

}
function preloadNav() {
	if (document.images) {
		process_over = newImage(EE_SiteRoot + "images/nav/arrow_process.gif");
		formats_over = newImage(EE_SiteRoot + "images/nav/arrow_formats.gif");

		research_over = newImage(EE_SiteRoot + "images/nav/arrow_research.gif");
		cases_over = newImage(EE_SiteRoot + "images/nav/arrow_cases.gif");
		preloadFlag = true;
	}

}
function hrollin(name)
{
if (document.images && (preloadFlag == true)) {
var corner=name + "corner";
document.images[name].src = "images/home/" + name + "-over.gif";
document.images[corner].src="images/home/" + name + "_corner-over.gif";
}

}

function hrollout(name)
{
if (document.images && (preloadFlag == true)) {
var corner=name + "corner";
document.images[name].src = "images/home/" + name + ".gif";
document.images[corner].src="images/home/" + name + "_corner.gif";
}

}



function nrollin(name)
{
if (document.images && (preloadFlag == true)) {
document.images[name].src = EE_SiteRoot + "images/nav/arrow_" + name + "-over.gif";
}
}

function nrollout(name)
{
if (document.images && (preloadFlag == true)) {
document.images[name].src = EE_SiteRoot + "images/nav/arrow.gif";
}
}