var speed2=30
mydemo2.innerHTML=mydemo1.innerHTML
function MyMarquee(){
if(mydemo2.offsetTop-mydemo.scrollTop<=0)
mydemo.scrollTop-=mydemo1.offsetHeight
else{
mydemo.scrollTop++
}
}
var MyMar2=setInterval(MyMarquee,speed2)
mydemo.onmouseover=function() {clearInterval(MyMar2)}
mydemo.onmouseout=function() {MyMar2=setInterval(MyMarquee,speed2)}