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) {
whatsnew_over = newImage("<? echo $sys_images_url; ?>whatsnew-over.gif");
biography_over = newImage("<? echo $sys_images_url; ?>biography-over.gif");
discography_over = newImage("<? echo $sys_images_url; ?>discography-over.gif");
mediainformation_over = newImage("<? echo $sys_images_url; ?>mediainformation-over.gif");
white_hole_over = newImage("<? echo $sys_images_url; ?>white-hole-over.gif");
bbs_over = newImage("<? echo $sys_images_url; ?>bbs-over.gif");
gallery_over = newImage("<? echo $sys_images_url; ?>gallery-over.gif");
recommendation_over = newImage("<? echo $sys_images_url; ?>recommendation-over.gif");
fly_over = newImage("<? echo $sys_images_url; ?>fly-over.gif");
mail_to_miu_over = newImage("<? echo $sys_images_url; ?>mail-to-miu-over.gif");
preloadFlag = true;
}
}