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

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		topnav_home_over = newImage("images/topnav_home_over.gif");
		topnav_about_over = newImage("images/topnav_about_over.gif");
		topnav_chart_over = newImage("images/topnav_chart_over.gif");
		topnav_faqs_over = newImage("images/topnav_faqs_over.gif");
		topnav_contact_over = newImage("images/topnav_contact_over.gif");
		/*****
		sidenav_tees_over = newImage("images/sidenav_tees_over.gif");
		sidenav_shorts_over = newImage("images/sidenav_shorts_over.gif");
		sidenav_jerseys_over = newImage("images/sidenav_jerseys_over.gif");
		sidenav_fleece_jackets_over = newImage("images/sidenav_fleece_jackets_over.gif");
		sidenav_hats_over = newImage("images/sidenav_hats_over.gif");
		sidenav_doubledry_over = newImage("images/sidenav_doubledry_over.gif");
		*****/
		preloadFlag = true;
	}
}