function roll(directory, imgName1, state, img1Type) {
	document.images[imgName1].src =  directory + imgName1 + state + img1Type;
	}

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();
   img9 = new Image();
   img10 = new Image();
   img1.src = "images/topNav_about1.gif";
   img2.src = "images/topNav_about2.gif";
   img3.src = "images/topNav_service1.gif";
   img4.src = "images/topNav_service2.gif";
   img5.src = "images/topNav_awards1.gif";
   img6.src = "images/topNav_awards2.gif";
   img7.src = "images/topNav_sitemap1.gif";
   img8.src = "images/topNav_sitemap2.gif";
   img9.src = "images/topNav_contact1.gif";
   img10.src = "images/topNav_contact2.gif";
}