Once, I used a scalable iframe trick:
Between <head> and </head>, add:
<script type="text/javascript" language="JavaScript">
<!--
function calcHeight()
{
var the_height=document.getElementById('the_iframe').contentWindow.document.body.scrollHeight; //find the height of the internal page
document.getElementById('the_iframe').style.height=the_height; //change the height of the iframe
}
//-->
</script>
Into the document:
<iframe src="for_example/punbb/index.php" id="the_iframe" onLoad="calcHeight();" width="600px" height="1" name="the_iframe" scrolling="no" frameborder="0">If you see this text your browser didn't support iframes. so see the page click on at the fowllowing link. <a href="link to the forum" target="_blank">Forum</A></iframe>