<head>
<title>iFrames & tables</title>
<style type="text/css">
table{width: 700px; height: 300px; background-color: #425364}
iframe{width: 300px; height: 250px; display: none}
</style>
</head>
<body>
<table>
<tr>
<td><a href="http://www.scriptingok.com" target="cella"
onclick="this.style.display='none';
document.getElementById('ifa').style.display='inline';">scriptingok</a>
<iframe name="cella" id="ifa"></iframe></td>
<td><a href="http://www.google.com" target="cellb"
onclick="this.style.display='none';
document.getElementById('ifb').style.display='inline';">google</a>
<iframe name="cellb" id="ifb"></iframe></td>
</tr>
</table>
</body>