<script language="javascript">
var speed=60;
var link_logo = document.getElementById('link_logo');
var link_logo1 = document.getElementById('link_logo1');
var link_logo2 = document.getElementById('link_logo2');
link_logo2.innerHTML=link_logo1.innerHTML;
function Marquee2(){
if(link_logo2.offsetTop-link_logo.scrollTop<=0){
link_logo.scrollTop-=link_logo1.offsetHeight;
}else{
link_logo.scrollTop=link_logo.scrollTop+1;
}
}
var MyMar2=setInterval(Marquee2,speed);
link_logo.onmouseover=function() {clearInterval(MyMar2)};
link_logo.onmouseout=function() {MyMar2=setInterval(Marquee2,speed)};
</script>link_logo2.offsetTop-link_logo.scrollTop<=0这个判断的值在IE和火狐中不一致,如何解决。