jquery or php detect external site length
<p>This might be pushing the limits here.</p>

<p>I iframe some external websites into one of my own websites.  </p>

<pre><code>&lt;iframe style="margin-top:20px;width:99%;height:600px;" src="http://www.website.com/"&gt;&lt;/iframe&gt;
</code></pre>

<p>This works just fine and dandy.  However, sometimes the sites are much longer than 600px. Which is not to be unexpected.</p>

<p>Is there a way to detect the height, or some method of length detection that I could work with?  </p>

<p>I don't expect this is possible, but I thought I'd ask.</p>
