function loadimg(imgname){
if (document.images) (new Image()).src = imgname;}
loadimg("/img/naviover_profile.gif"); 
loadimg("/img/naviover_review.gif");
loadimg("/img/naviover_gallery.gif");
loadimg("/img/naviover_link.gif");
loadimg("/img/naviover_mail.gif");
loadimg("/img/naviover_help.gif");