循环右滚动效果
<div id=demo style="overflow:hidden;width:600;">
<table  cellpadding="0" cellspacing="0">
 <tr>
  <td  align="left" valign="top" id=demo1>
  <table width="100%" cellpadding="0" cellspacing="0">
   <tr>
   <!--循环开始-->
    <td width="113" align="center" valign="top">
     <table width="113" cellpadding="0" cellspacing="0">
      <tr>
       <td width="113" height="103" align="center" background="images/bg6.jpg">
       <img src="UploadFile/123.gif" width="90" height="100" border="0" alt="思加图1"/>
       </td>
      </tr>
      <tr>
       <td height="20" align="center"><span class="black">思加图1</span></td>
      </tr>
     </table>
    </td>
    <td width="12">123</td>
   <!--循环结束!-->
   </tr>
  </table>
  </td>
  <td id=demo2 valign=bottom></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>