var banout;
    doLoadBanner();
    function doLoadBanner() {
             var banout_interval=3;
             if (banout_interval<15000) banout_interval=15000;
        if (banout) clearTimeout(banout);
        banout = setTimeout("doLoadBanner()", banout_interval);
        doLoadnewBan();
    }
    function doLoadnewBan() {
        var ban = new Subsys_JsHttpRequest_Js();
        var non=0;
        ban.onreadystatechange = function() {

            if (ban.readyState == 4) {
                if (ban.responseJS) {
                    var main_resp= ban.responseJS.resp;
                    var banner=main_resp['banner'];
                    var non=main_resp['non'];
                    document.getElementById('banner').innerHTML=banner;
                }
            }
        }
        ban.caching = false;
        ban.open('GET', 'banner.php', true);
        ban.send({ non:non});
    }