if (document.images)
			{
				navimage1 = new Image;
				navimage2 = new Image;
				navimage3 = new Image;
				navimage4 = new Image;
				navimage5 = new Image;
				navimage6 = new Image;
				navimage7 = new Image;
				navimage8 = new Image;
				navimage9 = new Image;
				navimage10 = new Image;
				navimage11 = new Image;
				navimage12 = new Image;
				navimage13 = new Image;
				navimage14 = new Image;
				navimage15 = new Image;
				navimage16 = new Image;
				navimage1.src = "images/home.jpg";
				navimage2.src = "images/home2.jpg";
				navimage3.src = "images/services.jpg";
				navimage4.src = "images/services2.jpg";
				navimage5.src = "images/about.jpg";
				navimage6.src = "images/about2.jpg";
				navimage7.src = "images/why.jpg";
				navimage8.src = "images/why2.jpg";
				navimage9.src = "images/drilling.jpg";
				navimage10.src = "images/drilling2.jpg";
				navimage11.src = "images/resources.jpg";
				navimage12.src = "images/resources2.jpg";
				navimage13.src = "images/projects.jpg";
				navimage14.src = "images/projects2.jpg";
				navimage15.src = "images/contact.jpg";
				navimage16.src = "images/contact2.jpg";
			}
			
			function chgImg(name, navimage)
			{
				if (document.images)
				{
					document[name].src = eval(navimage+".src");
				}
			}