var speeda=32 
demo2a.innerHTML=demo1a.innerHTML 
function Marqueea(){ 
if(demo2a.offsetWidth-demoa.scrollLeft<=0) 
demoa.scrollLeft-=demo1a.offsetWidth 
else{ 
demoa.scrollLeft++ 
} 
} 
var MyMara=setInterval(Marqueea,speeda) 
demoa.onmouseover=function() {clearInterval(MyMara)} 
demoa.onmouseout=function() {MyMara=setInterval(Marqueea,speeda)}// JavaScript Document