滚动js在火狐中失效了

<div id="marquees">
  <a href="#"><img src="images/index_08.jpg" height="210" width="210" border="0"></a><br>
  <a href="#"><img src="images/index_08.jpg" height="210" width="210" border="0"></a><br>
  <a href="#"><img src="images/index_08.jpg" height="210" width="210" border="0"></a><br>
  <a href="#"><img src="images/index_08.jpg" height="210" width="210" border="0"></a><br>
  </div>
        <script language="JavaScript">
marqueesHeight=678;
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" ></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()",50);
}
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;
  }
}
</script>

就是失效,不提示错误,求解

火狐浏览器可能不支持 js，用IE的就可以了

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如果觉的我的答案可以，请麻烦你点击“采纳”

举手之劳，将会激励我继续回答 其他QQ好友的问题，谢谢了！