//function marquee(height, speed, delay) {
//    var scrollT;
//    var pause = false;
//    var ScrollBox = document.getElementById("shangfan");
//    if (document.getElementById("holder").offsetHeight <= height) return;
//    var _tmp = ScrollBox.innerHTML.replace('holder', 'holder2');
//    ScrollBox.innerHTML += _tmp;
//    ScrollBox.onmouseover = function() { pause = true }
//    ScrollBox.onmouseout = function() { pause = false }
//    ScrollBox.scrollTop = 0;
//    function start() {
//        scrollT = setInterval(scrolling, speed);
//        if (!pause) ScrollBox.scrollTop += 2;
//    }
//    function scrolling() {
//        if (ScrollBox.scrollTop % height != 0) {
//            ScrollBox.scrollTop += 2;
//            if (ScrollBox.scrollTop >= ScrollBox.scrollHeight / 2) ScrollBox.scrollTop = 0;
//        }
//        else {
//            clearInterval(scrollT);
//            setTimeout(start, delay);
//        }
//    }
//    setTimeout(start, delay);
//}
//marquee(24, 30, 3000);

var speed=30;
var tab=document.getElementById("shangfan");
var tab1=document.getElementById("holder");
var tab2=document.getElementById("gundong");
tab2.innerHTML=tab1.innerHTML;
function marquee(){
    if(tab2.offsetWidth-tab.scrollLeft<=0){
        tab.scrollLeft-=tab1.offsetWidth
    }else{
        tab.scrollLeft++;
    }
}
var MyMar=setInterval(marquee,speed);
tab.onmouseover=function() {clearInterval(MyMar)};
tab.onmouseout=function() {MyMar=setInterval(marquee,speed)};