图片的marquee

<div id="demo" style="overflow:hidden;width:487px;">
<table cellpadding="0" cellspacing="0" border="0">
<tr><td id="demo1" valign="top" align="center">
<table cellpadding="2" cellspacing="0" border="0">
<tr align="center">
<td><img src="../style/img/gund/01.gif" width="160"></td>
<td><img src="../style/img/gund/02.gif" width="160"></td>
<td><img src="../style/img/gund/03.gif" width="160"></td>
<td><img src="../style/img/gund/04.gif" width="160"></td>
<td><img src="../style/img/gund/05.gif" width="160"></td>
<td><img src="../style/img/gund/06.gif" width="160"></td>
<td><img src="../style/img/gund/07.gif" width="160"></td>
<td><img src="../style/img/gund/08.gif" width="160"></td>
<td><img src="../style/img/gund/09.gif" width="160"></td>
<td><img src="../style/img/gund/10.gif" width="160"></td>
</tr>
</table>
</td>
<td id="demo2" valign="top"></td>
</tr>
</table>
</div>
<script type="text/javascript">
var speed=1//速度数值越大速度越慢
var demo=document.getElementById("demo");
var demo2=document.getElementById("demo2");
var demo1=document.getElementById("demo1");
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>
</div>