// JavaScript Document
function ScrollImgLeft(){
var speed3=22//速度数值越大速度越慢
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo.scrollLeft<=0){
demo.scrollLeft=demo2.offsetWidth
}
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed3)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed3)}
}