通过以下四个页面，可以实现。
index.html
---------------------------------
<html>
<head>
<title>this is my title</title>
</head>
<frameset rows="*" marginheight="0" marginwidth="0" topmargin="0" leftmargin="0">
<frame name="divframe" src="go.html" marginheight="0" marginwidth="0" topmargin="0" leftmargin="0" noresize scrolling="no">
</frameset>
<noframes>
<body>
sorry your browser doesn't accept frames
</body>
</noframes>
</html>
oldindex.html
---------------------------------
<frameset rows="30,*" style="z-index:1">
<frame src="topframe.html" style="z-index:1">
<frameset cols="30,*" style="z-index:1">
<frame src="topframe.html" style="z-index:1">
<frame src="topframe.html" style="z-index:1">
</frameset>
<frame src="topframe.html" style="z-index:1">
</frameset>
topframe.html
---------------------------------
<html>
<head>
</head>
<body>
<a onclick="top.divframe.document.getElementById('dude').style.display='block'">Go!</a>
</body>
</html>
go.html
---------------------------------
<html>
<body>
<div id='dude' class='' style="position:absolute;float:left;top=5;left=25;display='none';z-index:2;"><table bgcolor='009900'><tr><td>***<br><br>***this is my content...***<br><br>***</td></tr></table></div>
<iframe src="oldindex.html" width=100% height=100% marginwidth=0>
</body>
</html>