// 首页校园实景栏目图片水平滚动效果——JavaScript Document

function ScrollImgLeft(){
var speed=15
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.scrollLeft-scroll_div.scrollWidth<=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)}
}