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) {
		snav_home_over = newImage("images/snav_home-over.gif");
		snav_jewelry_over = newImage("images/snav_jewelry-over.gif");
		snav_watches_over = newImage("images/snav_watches-over.gif");
		snav_gems_over = newImage("images/snav_gems-over.gif");
		snav_services_over = newImage("images/snav_services-over.gif");
		snav_museum_over = newImage("images/snav_museum-over.gif");
		tnav_about_over = newImage("images/tnav_about-over.gif");
		tnav_faqs_over = newImage("images/tnav_faqs-over.gif");
		tnav_contact_over = newImage("images/tnav_contact-over.gif");
		preloadFlag = true;
	}
}