if (document.images) 
{ 
   img1 = new Image();
   img2 = new Image();
   img3 = new Image(); 
   img4 = new Image(); 
   img5 = new Image();
   img6 = new Image();      
   img1.src = "images/full_logo.jpg";
   img2.src = "images/ecom_left_bg.jpg";
   img3.src = "images/ecom_rit_bg.jpg";
   img4.src = "images/ecom_top.jpg";
   img5.src = "images/ecom_bottom.jpg";
   img6.src = "images/menu_bg.jpg";  
   }