function image_popup(uerel, image, wi, he)
{
   wi += 15;
   he += 15;
	okno=window.open(uerel+'?image='+image+'&width='+w+'&height='+h, '_blank', 'menubar=no, toolbar=no, location=no, scrollbars=no, resizable=no, status=no, width='+wi+', height='+he);
}



function change_background(id,over_out){
  var image = (over_out) ? "url(img/menu_selected_bg1.png)" : "none";
  document.getElementById(id).style.backgroundImage = image;
}