function preload(imgObj,imgSrc) {
        if (document.images) {
            eval(imgObj+' = new Image()')
            eval(imgObj+'.src = "'+imgSrc+'"')
        }
    }
    
function chImg(layer,imgName,imgObj) {

        if (document.images) {
            if (document.layers && layer!=null) eval('document.'+layer+'.document.images["'+imgName+'"].src = '+imgObj+'.src')
            else document.images[imgName].src = eval(imgObj+".src")
        }
    }


preload('nav1_off','images/nav1.gif');
preload('nav1_on','images/nav1_r.gif');
preload('nav2_off','images/nav2.gif');
preload('nav2_on','images/nav2_r.gif');
preload('nav3_off','images/nav3.gif');
preload('nav3_on','images/nav3_r.gif');
preload('nav4_off','images/nav4.gif');
preload('nav4_on','images/nav4_r.gif');
preload('nav5_off','images/nav5.gif');
preload('nav5_on','images/nav5_r.gif');
preload('nav6_off','images/nav6.gif');
preload('nav6_on','images/nav6_r.gif');
preload('nav7_off','images/nav7.gif');
preload('nav7_on','images/nav7_r.gif');


preload('footer1_off','images/footer1.gif');
preload('footer1_on','images/footer1_r.gif');
preload('footer2_off','images/footer2.gif');
preload('footer2_on','images/footer2_r.gif');
preload('footer3_off','images/footer3.gif');
preload('footer3_on','images/footer3_r.gif');
preload('footer4_off','images/footer4.gif');
preload('footer4_on','images/footer4_r.gif');
preload('footer5_off','images/footer5.gif');
preload('footer5_on','images/footer5_r.gif');


preload('term1_off','images/ua.gif');
preload('term1_on','images/ua_r.gif');

preload('term2_off','images/pp.gif');
preload('term2_on','images/pp_r.gif');



preload('zoom_off','images/zoom.gif');
preload('zoom_on','images/zoom_r.gif');

preload('send_off','images/send2friend.gif');
preload('send_on','images/send2friend_r.gif');

preload('buynow_off','images/buynow.gif');
preload('buynow_on','images/buynow_r.gif');

preload('moreinfo_off','images/moreinfo.gif');
preload('moreinfo_on','images/moreinfo_r.gif');

preload('enter_off','images/enter2win.gif');
preload('enter_on','images/enter2win_r.gif');

preload('rsvp_off','images/rsvp.gif');
preload('rsvp_on','images/rsvp_r.gif');

preload('submit_off','images/submit.gif');
preload('submit_on','images/submit_r.gif');

preload('dl_off','images/download.gif');
preload('dl_on','images/download_r.gif');