帮我看看是哪里出错了
谢谢！

<table width="799" height="190" border="0" cellpadding="0" cellspacing="0">
          <tr>
            <td width="798" height="165" valign="middle" bgcolor="#CC0200"><DIV id="demo" style="OVERFLOW: hidden; WIDTH: 798px; HEIGHT: 150px;">
              <table width="749" height="100" border="0" align="center" cellpadding="0" cellspacing="0">
        <tr><td id="demo1">
              <table width="777" height="134"  border="0" cellpadding="5" cellspacing="5">
                <tr>

                  
                  <%dim strZT, rsZT, nn
                   nn = 0
                   strZT = "select * from SightSpot where ShowInCover=1 order by id desc"
                   set rsZT = con.execute(strZT)
                   while not rsZT.eof
                  %>
                  <td width="757" align="center" valign="middle" style="border:1px dotted #666666 "><a href=sight_detail.asp?id=<%=rsZT("id")%>><img src=/upload/sight/<%=rsZT("imgURL")%> border=0 alt=<%=rsZT("title")%>><br><font color=#ffffff><%=rsZT("title")%></font></a></td>
                  <%
                  rsZT.movenext
                  wend
                  rsZT.close
                  set rsZT=nothing
                  %>
                </tr>
              </table>
</td>
          <td id="demo2">&nbsp;</td>
              </tr></table>
              </div>
            <script language="javascript">
              var speed=1
demo2.innerHTML=demo1.innerHTML
function Marquee1(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else
demo.scrollLeft++

}
var MyMar1=setInterval(Marquee1,speed)
demo.onmouseover=function() {clearInterval(MyMar1)}
demo.onmouseout=function() {MyMar1=setInterval(Marquee1,speed)}
              </script></td>
          </tr>
        </table>