如何让滚动字母低部显示
<table width="183" border="0" cellspacing="0" cellpadding="0">
<tr>
<td><img src="{gt_path}ll_4.gif" width="183" height="30"></td>
</tr>
<tr>
<td height="19" align="left" valign="top" background="{gt_path}car_02.gif"><marquee direction="up" scrollamount="2" height="100" onMouseOver="this.scrollAmount=0" onMouseOut="this.scrollAmount=2">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tr>
<td><table align="CENTER" class="bottomborder" width="100%" border="0" cellspacing="0" cellpadding="3">
<tr>
<!-- Begin:Link(col:1;num:0;flag:0) -->
<td valign=top><table width="100%" border="0" cellspacing="0" cellpadding="0" class="bottomborder">
<tr>
<td valign="bottom" class="p14deepblue">
<div align="center"><a href="{link_url}" target="_blank">{link_name}</a> </div>
</td>
</tr>
</table></td>
<!-- End:Link -->
</tr>
</table></td>
</tr>
</table></marquee></td>
</tr>
<tr>
<td height="100" align="center" valign="top" background="{gt_path}car_02.gif"> </td>
</tr>
<tr>
<td><img src="{gt_path}car_03.gif" width="183" height="9"></td>
</tr>
</table>
这是这个表格的整段代码我不知道该怎么才能让他从表格的低部循环滚动显示