function ScrollImgTop() {
    var speed = 30;
    var scroll_begin = document.getElementById("scroll_begin");
    var scroll_end = document.getElementById("scroll_end");
    var scroll_div = document.getElementById("scroll_div");
    scroll_end.innerHTML = scroll_begin.innerHTML;
    //alert("scroll_end.offsetTop :  " + scroll_end.offsetTop + "    scroll_div.scrollTop: " + scroll_div.scrollTop + "  scroll_begin.offsetHeight: " + scroll_begin.offsetHeight);
    var tempHeight = scroll_begin.offsetHeight;
    function Marquee() {
        //alert("scroll_end.offsetTop :  " + scroll_end.offsetTop + "    scroll_div.scrollTop: " + scroll_div.scrollTop + "  scroll_begin.offsetHeight: " + scroll_begin.offsetHeight);
        if (tempHeight - scroll_div.scrollTop <= 0)
            scroll_div.scrollTop -= scroll_begin.offsetHeight;
        else
            scroll_div.scrollTop++;
    }
    var MyMar = setInterval(Marquee, speed)
    scroll_div.onmouseover = function() { clearInterval(MyMar) }
    scroll_div.onmouseout = function() { MyMar = setInterval(Marquee, speed) }
}