架空桥架:如何用javascript让图片向上走

来源：百度文库编辑：杭州交通信息网时间：2024/04/29 10:21:42

<div id=demo style=overflow:hidden;height:270;width:480>
<table border=0 align=right cellpadding=0 cellspacing="0">
<tr>
<td id=demo1 valign=top><a href="upload/2006115649523450.jpg"><img src="upload/200611564952345.jpg" alt="" height="260" border="0" behavior=alternate></a></td>
<td id=demo2 valign=top></td>
</tr>
</table>
</div>
<script>
var speed=30
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>

这段代码是让图片从屏幕的右端走向左端,我怎么能让它做从下向上走??

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