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) {
		about_us_over = newImage("images/about_us-over.gif");
		events_over = newImage("images/events-over.gif");
		staff_over = newImage("images/staff-over.gif");
		regional_groups_over = newImage("images/regional_groups-over.gif");
		committees_over = newImage("images/committees-over.gif");
		school_energy_over = newImage("images/school_energy-over.gif");
		awards_over = newImage("images/awards-over.gif");
		related_links_over = newImage("images/related_links-over.gif");
		vt_sput_list_over = newImage("images/vt_sput_list-over.gif");
		members_over = newImage("images/members-over.gif");
		search_over = newImage("images/search-over.gif");
		contact_us_over = newImage("images/contact_us-over.gif");
		home_over = newImage("images/home-over.gif");
		preloadFlag = true;
	}
}