FF浏览器图片不能滚动，IE正常

 <td>
  <div id="www_qpsh_com" style="overflow:hidden; height:124px;width:998px;color:#ff0000">
    <table align="left" cellpadding="0" cellspace="0" border="0">
    <tr>
    <td id="www_qpsh_com1" valign="top">    <asp:DataList  ID="TeacherWorks" runat="server" RepeatColumns="10">
          <HeaderTemplate> 
   </HeaderTemplate>
         <ItemTemplate> <table border="0" cellpadding="0" cellspacing="0">
           <td align=center>
            <div><a href="Teacher_Works_detail.aspx?id=<%#DataBinder.Eval(Container.DataItem, "dvc_id")%>"><img src=" <%#DataBinder.Eval(Container.DataItem, "dvc_url")%>"  width="156" height="120" alt="" /></a></div>
            <div style="color:#FF9933; text-align:center;"><%#substring(DataBinder.Eval(Container.DataItem, "dvc_name").ToString(),12) %></div></td>
         </table> 
 </ItemTemplate>
         <FooterTemplate>  
  </FooterTemplate>
        </asp:DataList>
                              
</td>
  <td id="www_qpsh_com2" valign="top">
  </td>
  
  </tr>
  </table></div>
  <script type="text/javascript">
  var speed=10//速度数值越大速度越慢
 // var www_qpsh_com2=document.getElementById("www_qpsh_com2");
 // var www_qpsh_com1=document.getElementById("www_qpsh_com1");
  www_qpsh_com2.innerHTML=www_qpsh_com1.innerHTML
  function Marquee(){
  if(www_qpsh_com2.offsetWidth-www_qpsh_com.scrollLeft<=0)
  www_qpsh_com.scrollLeft-=www_qpsh_com1.offsetWidth
  else{
  www_qpsh_com.scrollLeft++
  }
  }
  var MyMar=setInterval(Marquee,speed)
  www_qpsh_com.onmouseover=function() {clearInterval(MyMar)}
  www_qpsh_com.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>
 </td>