if (document.images)
{
  preload_image_object = new Image();
  // set image url
  image_url = new Array();
  image_url[0] = "../images/star-btn-over.jpg";
  image_url[1] = "../images/slickfish-btn-over.png";
  image_url[2] = "../images/lw-collage1.jpg";
  image_url[3] = "../images/lw-collage2.jpg";
  image_url[4] = "../images/lw-collage3.jpg";
  image_url[5] = "../images/lw-collage4.jpg";
  image_url[6] = "../images/lw-collage5.jpg";
  image_url[7] = "../images/lw-collage6.jpg";

   var i = 0;
   for(i=0; i<=7; i++) 
	 preload_image_object.src = image_url[i];
}