<frameset rows="45,*" cols="*" frameborder="NO" border="0" framespacing="0">
  <frame src="topfm.htm" name="topFrame" scrolling="NO" noresize marginwidth="0" marginheight="0" >
  <frameset cols="200,*" frameborder="NO" border="0" framespacing="0">
    <frame src="leftfm.htm" name="leftFrame" scrolling="auto" noresize>
    <frame src="Product/product_list.aspx" name="mainFrame" scrolling="auto" noresize>
  </frameset>
</frameset>
这是用框架做的,在topfm.htm中我做了个退出图片,这是topfm.htm的源代码
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr> 
    <td width="50" rowspan="2"><img src="image/mtm_top01.gif" width="50" height="40"></td>
    <td width="100" rowspan="2"><img src="image/mtm_top02.gif" width="100" height="40"></td>
    <td width="250" rowspan="2"><img src="image/mtm_top03.gif" width="250" height="40"></td>
    <td width="200"><img src="image/mtm_top04.gif" width="200" height="20"></td>
    <td>&nbsp;</td>
    <td width="90" rowspan="2"><img src="image/mtm_top05.gif" width="90" height="40"></td>
  </tr>
  <tr> 
    <td>当前时间:<span class="text343D90"><script language=javascript>dispdate();</script></span></td>
    <td>当前帐户:<span class="text343D90">admin</span></td>
  </tr>
</table>
其中<img src="image/mtm_top05.gif" width="90" height="40">就是退出的这张图片,我怎么样才能在按了这张图片以后使整个框架都退出到index.aspx这个页面??