滑动门中是否可以加入滚动代码，请高手指点一下

<div id="zxsj">
<table width="566" height="252" border="0" cellpadding="0" cellspacing="0">
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  <td width="10" height="27" background="zymh051.gif">&nbsp;</td>
  <td width="496"><ul class="TabBarLevel201" id="TabPage301">
<li id="Tab305" class="Selected"><a href="#" onfocus="this.blur()" onmouseover="javascript:switchTab301('TabPage301','Tab305');">供应信息</a></li>
<li id="Tab306"><a href="#" onfocus="this.blur()" onmouseover="javascript:switchTab301('TabPage301','Tab306');">求购信息</a></li>
</ul></td>
  <td width="60" align="center" background="zymh051.gif"><img src="zymh058.gif" width="40" height="20" border="0"></td>
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  <td height="225" colspan="3" valign="bottom"><div id="cnt301">
<div id="dTab30" class="HackBox201" style="display:block;"><table width="100%" height="225" border="0" cellpadding="0" cellspacing="0">   
  <tr>
  <td height="200">
  
  
<DiV id="demo" style="HEIGHT:200px;height:200px;overflow:hidden;white-space:nowrap;"
onmouseout=ii=0>
<DiV id="demo1">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td height="25">11</td>
<tr>
<td height="25">11</td>
</tr>
<tr>
<td height="25">11</td>
</tr>
<tr>
<td height="25">11</td>
<tr>
<td height="25">11</td>
</tr>
<tr>
<td height="25">11</td>
</tr>
</table>
</DiV>
<DiV id="demo2">
</DiV>
</div>
<input type="text" id="txt">
<SCRIPT>
var ii=1;//滚动距离为1像素，注意变量不要和滑动门的JS变量混合使用！
var d=document.getElementById('demo');
var d1=document.getElementById('demo1');
var d2=document.getElementById('demo2');
var txt=document.getElementById('txt');
d2.innerHTML=d1.innerHTML;
function qswhMarquee(){
txt.value=d1.offsetHeight-d.scrollTop;//获得测试参数，实际应用的时候把它删除！
d.scrollTop+= ii;
if(d1.offsetHeight-d.scrollTop<=50)//这里的50是个测试值，根据你的内容而进行调整，以保证其不断循环滚动！
  {
   d.scrollTop = 0;
   }

 }
window.setInterval(qswhMarquee,30);
</SCRIPT>

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<div id="dTab306" class="HackBox201">22</div>
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<script language="JavaScript">
//Switch Tab Effect
function switchTab301(tabpage301,tabid){
  var oItem = document.getElementById(tabpage301);   
for(var i=0;i<oItem.children.length;i++){
var x = oItem.children(i);
x.className = "";
var y = x.getElementsByTagName('a');
y[0].style.color="#000000";
}
document.getElementById(tabid).className = "Selected";
var dvs=document.getElementById("cnt301").getElementsByTagName("div");
for (var i=0;i<dvs.length;i++){
if (dvs[i].id==('d'+tabid))
dvs[i].style.display='block';
else
  dvs[i].style.display='none';
}
}
</script>