/*控制div+css无缝向左滚动*/
 function ScrollImgLeft(){
    var speed=20
    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
    function Marquee(){
    if(scroll_end.offsetWidth-scroll_div.scrollLeft<=0)
    scroll_div.scrollLeft-=scroll_begin.offsetWidth
    else
    scroll_div.scrollLeft++
    }
    var MyMar=setInterval(Marquee,speed)
    scroll_div.onmouseover=function() {clearInterval(MyMar)}
    scroll_div.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
    }
 /*控制div+css无缝向上滚动*/
 function ScrollImgTop(){
    var speed=20
    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
    function Marquee(){
    if(scroll_end.offsetTop-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)}
    }