function preloader() {
    if (document.images){
        aImgSrc = new Array("header","header_bg","nav_home","nav_our_program","nav_faqs","nav_about_us","nav_e-store","footer","nav_home_down","nav_our_program_down","nav_faqs_down","nav_about_us_down","nav_e-store_down");
        aImgLst = new Array();
        for(counter in aImgSrc){
            aImgLst[counter] = new Image();
            aImgLst[counter].src = "images/" + aImgSrc[counter] + ".jpg";
        }
    }
}