var myimages=new Array()
function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimages[i]=new Image()
myimages[i].src=preloadimages.arguments[i]
}
}

preloadimages
(
"images/logo.jpg",
"images/top_bg.jpg",
"images/login_hover.jpg"
)