if (document.images) {         					   // Active Images

            img1on = new Image();
            img1on.src = "http://vnetworks.us/img/index/nav01_products_x.gif";
            img2on = new Image();
            img2on.src = "http://vnetworks.us/img/index/nav02_login_x.gif";
            img3on = new Image();
            img3on.src = "http://vnetworks.us/img/index/nav03_servreq_x.gif";
			img4on = new Image();
            img4on.src = "http://vnetworks.us/img/index/nav04_about_x.gif";
            img5on = new Image();
            img5on.src = "http://vnetworks.us/img/index/nav05_home_x.gif";
            			
            img1off = new Image(); 	
            img1off.src = "http://vnetworks.us/img/index/nav01_products.gif";
            img2off = new Image(); 	
            img2off.src = "http://vnetworks.us/img/index/nav02_login.gif";
            img3off = new Image();
            img3off.src = "http://vnetworks.us/img/index/nav03_servreq.gif";
			img4off = new Image(); 		
            img4off.src = "http://vnetworks.us/img/index/nav04_about.gif";
            img5off = new Image(); 	
            img5off.src = "http://vnetworks.us/img/index/nav05_home.gif";
			

			}

function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}