var speed4=25//速度数值越大速度越慢
document.getElementById("demo111").innerHTML=document.getElementById("demo101").innerHTML

function Marquee4(){
if(document.getElementById("demo111").offsetWidth-document.getElementById("demo91").scrollLeft<=0)
document.getElementById("demo91").scrollLeft-=document.getElementById("demo101").offsetWidth
else{
document.getElementById("demo91").scrollLeft++
}
}
var MyMar4=setInterval(Marquee4,speed4)
document.getElementById("demo91").onmouseover=function() {clearInterval(MyMar4)}
document.getElementById("demo91").onmouseout=function() {MyMar4=setInterval(Marquee4,speed4)}