一段js经过dedecms生成首页就不能用了。不知道为什么！

Question

	<div id=demo style="overflow:hidden;width:750;" align=center>
	<table border=0 align=center cellpadding=1 cellspacing=1 cellspace=0 >
	<tr><td valign=top bgcolor=ffffff id=marquePic1>
	<table width='100%' border='0' cellspacing='0'><tr><td align=center><a href='#'><img src="http://www.baidu.com/img/logo.gif" width=120 height=80 border=0><br><br>01</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>02</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>03</a></td><td align=center><a href='#'><img src="http://www.baidu.com/img/logo.gif" width=120 height=80 border=0><br><br>04</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>05</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>06</a></td><td align=center><a href='#'><img src="http://www.baidu.com/img/logo.gif" width=120 height=80 border=0><br><br>07</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>08</a></td><td align=center><a href='#'><img src=http://www.baidu.com/img/logo.gif width=120 height=80 border=0><br><br>09</a></td></tr></table>
	</td><td id=marquePic2 valign=top></td></tr>
	</table></div>
	<script type="text/javascript">
	var speed=50
	marquePic2.innerHTML=marquePic1.innerHTML
	function Marquee(){
	if(demo.scrollLeft>=marquePic1.scrollWidth){
	demo.scrollLeft=0
	}else{
	demo.scrollLeft++
	}
	}
	var MyMar=setInterval(Marquee,speed)
	demo.onmouseover=function() {clearInterval(MyMar)}
	demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
	</script> 把这段代码保存为test.html。在dedecms后台当做首页模版生成。图片就不会动了。我 用的是谷歌浏览器。谢谢！！！！！！！

Answer 1

按下f12看看报错没