var speed=25;//速度数值越大速度越慢
$("demo2").innerHTML=$("demo1").innerHTML;
function Marquee(){
if($("demo2").offsetWidth-demo.scrollLeft<=0)
$("demo").scrollLeft-=$("demo1").offsetWidth;
else{
$("demo").scrollLeft++;
}
}
var MyMar=setInterval(Marquee,speed);
$("demo").onmouseover=function() {clearInterval(MyMar);}
$("demo").onmouseout=function() {MyMar=setInterval(Marquee,speed);}