滾動效果

<!--左側向上滾動代碼--><script>    function ScrollImgTop(div,begin,end){        var speed=70        end.innerHTML=begin.innerHTML        function Marquee(){            if(end.offsetHeight-div.scrollTop<=0)                div.scrollTop-=begin.offsetHeight            else{div.scrollTop++}        }        var MyMar=setInterval(Marquee,speed)        div.onmouseover=function(){clearInterval(MyMar)}        div.onmouseout=function(){MyMar=setInterval(Marquee,speed)}    }    ScrollImgTop(scroll_div,scroll_begin,scroll_end);    ScrollImgTop(scroll_div2,scroll_begin2,scroll_end2);</script><!--左側向上滾動代碼   ///-->