function preloadedImages() 
{ 
heavyImage = new Image();
heavyImage[0] = "";
heavyImage[1] = "";
heavyImage[2] = "";
heavyImage[3] = "";
heavyImage[4] = "";
heavyImage[5] = "";
heavyImage[6] = "";
heavyImage[7] = "";
heavyImage[8] = "";
heavyImage[9] = "";
heavyImage[10] = "";
heavyImage[11] = "";
heavyImage[12] = "";
heavyImage[13] = "";
heavyImage[0].src = "/images/home/nav_home.gif";
heavyImage[1].src = "/images/home/nav_home_on.gif";
heavyImage[2].src = "/images/home/nav_info.gif";
heavyImage[3].src = "/images/home/nav_info_on.gif";
heavyImage[4].src = "/images/home/nav_guide.gif";
heavyImage[5].src = "/images/home/nav_guide_on.gif";
heavyImage[6].src = "/images/home/nav_traffic.gif";
heavyImage[7].src = "/images/home/nav_traffic_on.gif";
heavyImage[8].src = "/images/home/nav_service.gif";
heavyImage[9].src = "/images/home/nav_service_on.gif";
heavyImage[10].src = "/images/home/nav_business.gif";
heavyImage[11].src = "/images/home/nav_business_on.gif";
heavyImage[12].src = "/images/home/nav_online.gif";
heavyImage[13].src = "/images/home/nav_online_on.gif";
}