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) {
		curricula_roll_02_over = newImage("images/curricula_roll_02-over.gif");
		curricula_roll_02_curricula_roll_03_over = newImage("images/curricula_roll_02-curricula.gif");
		curricula_roll_03_over = newImage("images/curricula_roll_03-over.gif");
		curricula_roll_03_curricula_roll_04_over = newImage("images/curricula_roll_03-curricula.gif");
		curricula_roll_04_over = newImage("images/curricula_roll_04-over.gif");
		curricula_roll_04_curricula_roll_05_over = newImage("images/curricula_roll_04-curricula.gif");
		curricula_roll_05_over = newImage("images/curricula_roll_05-over.gif");
		curricula_roll_06_curricula_roll_05_over = newImage("images/curricula_roll_06-curricula.gif");
		curricula_roll_06_over = newImage("images/curricula_roll_06-over.gif");
		curricula_roll_08_over = newImage("images/curricula_roll_08-over.gif");
		
		preloadFlag = true;
	}}