我想编一程序，代码如下，可不知道怎么让这个框架显示在中间位置，高手想想办法啊，
<frameset framespacing= "0 " border= "0 " rows= "73,* " frameborder= "0 ">
<frame name= "banner " scrolling= "no " noresize target= "contents " src= "top.jsp ">
<frameset cols= "200,* ">
<frame name= "contents " target= "main " src= "left.jsp " scrolling= "auto " noresize>
<frame name= "main " src= "main.jsp ">
</frameset>
<noframes>
<body>
<p>
zhengwen
</p>
</body>
</noframes>
</frameset>
------解决方案--------------------
<frameset framespacing= "0 " border= "0 " rows= "73,* " frameborder= "0 ">
<frame name= "banner " scrolling= "no " noresize target= "contents " src= "top.jsp ">
<frameset cols= "200,* ">
<frame name= "contents " target= "main " src= "left.jsp " scrolling= "auto " noresize>
<frame name= "main " src= "main.jsp ">
</frameset>
<noframes>
<body>
<p>
zhengwen
</p>
</body>
</noframes>
</frameset>