段滚动代码中间出现断


var speed3=25
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed3)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed3)}  <DIV id=demo style="OVERFLOW: hidden; WIDTH: 100%; COLOR: #ffffff">
      <TABLE cellSpacing=0 cellPadding=0 align=left border=0 cellspace="0">
        <TBODY>
        <TR>

          <TD id=demo1 vAlign=top><table width="100%" height="100"  border="0" cellpadding="0" cellspacing="0">
            <tr>           
<td align="center" valign="middle" style="padding:2px; text-decoration:none; ">
內容放裡這裡
    </td>
            </tr>
          </table></TD>
          <TD id=demo2 vAlign=top>&nbsp;</TD></TR></TBODY></TABLE></DIV>
    </TD></TR>
  </TBODY></TABLE></td>
        </tr>
      </table>
  </div>