if (document.images) 
{
   img1 = new Image();
   img2 = new Image();
	img3 = new Image();
	img4 = new Image();
   img1.src = "/images/buttons/button_orderpolicy-over.gif";
   img2.src = "/images/buttons/button_continue-whitebk-over.gif";
   img3.src = "/mobile_phone_insurance/images/quote_yours-bot-over.gif";
	img4.src = "/mobile_phone_insurance/images/button_mobile-over.gif";
}