if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "http://www.eandhbaxendale.com/Images/headers/hometop2.jpg";
      image_url[1] = "http://www.eandhbaxendale.com/Images/headers/daff2.jpg";
      image_url[2] = "http://www.eandhbaxendale.com/Images/headers/joists.jpg";
      image_url[3] = "http://www.eandhbaxendale.com/Images/headers/attictop.jpg";
      image_url[4] = "http://www.eandhbaxendale.com/Images/headers/Kensington-60.jpg";
       var i = 0;
       for(i=0; i<=4; i++) 
         preload_image_object.src = image_url[i];
    }