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) {
home_over = newImage("images/topmenu/home-over.gif");
terms_over = newImage("images/topmenu/terms-over.gif");
faq_over = newImage("images/topmenu/faq-over.gif");
shedule_over = newImage("images/topmenu/shedule-over.gif");
contact_over = newImage("images/topmenu/contact-over.gif");
signup_over = newImage("images/topmenu/signup-over.gif");
loginbut_over = newImage("images/loginbut-over.gif");
preloadFlag = true;}}