if (document.images)
{
   img1 = new Image();
   img2 = new Image();
   img3 = new Image();
   img4 = new Image();
   img5 = new Image();
   img6 = new Image();
   img7 = new Image();
   img8 = new Image();

   img1.src = "/themes/alphacube/left-top.gif";
   img2.src = "/themes/alphacube/top-middle.gif"
   img3.src = "/themes/alphacube/right-top.gif"
   img4.src = "/themes/alphacube/frame-left.gif"
   img5.src = "/themes/alphacube/frame-right.gif"
   img6.src = "/themes/alphacube/bottom-left-c.gif"
   img7.src = "/themes/alphacube/bottom-middle.gif"
   img8.src = "/themes/alphacube/bottom-right-c.gif"
}