function PreloadImg()
{
 var img_list = PreloadImg.arguments;
 if (document.preloadlist == null) document.preloadlist = new Array();
 var top = document.preloadlist.length;
 for (var i=0; i < img_list.length; i++)
  {
   document.preloadlist[top+i] = new Image;
   document.preloadlist[top+i].src = img_list[i+1];
  }
}