var myimg=new Array()
function preloadimages(){
for (i=0;i<preloadimages.arguments.length;i++){
myimg[i]=new Image()
myimg[i].src=preloadimages.arguments[i]
}
}
preloadimages("../images/nav_home_over.jpg","../images/nav_products_over.jpg","../images/nav_promotions_over.jpg","../images/nav_learn_over.jpg","../images/nav_support_over.jpg","../images/nav_guarantee_over.jpg");