marqueesHeight=200;

stopscroll=false;

with(marquees){

  style.width=0;

  style.height=marqueesHeight;

  style.overflowX="visible";

  style.overflowY="hidden";

  noWrap=true;

  onmouseover=new Function("stopscroll=true");

  onmouseout=new Function("stopscroll=false");

}

document.write('<div id="templayer" style="position:absolute;z-index:1;visibility:hidden"></div>');

preTop=0; currentTop=0; 

function init(){

  templayer.innerHTML="";

  while(templayer.offsetHeight<marqueesHeight){

    templayer.innerHTML+=marquees.innerHTML;

  }

  marquees.innerHTML=templayer.innerHTML+templayer.innerHTML;

  setInterval("scrollUp()",120);

}

document.body.onload=init;

function scrollUp(){

  if(stopscroll==true) return;

  preTop=marquees.scrollTop;

  marquees.scrollTop+=1;

  if(preTop==marquees.scrollTop){

    marquees.scrollTop=templayer.offsetHeight-marqueesHeight;

    marquees.scrollTop+=1;

  }

}