Understanding browser window height (for jQuery use)
<p>When using:</p>

<pre><code>var size = $(window).height(); 
</code></pre>

<p>Firefox console shows me: 594 </p>

<p>but in here: <a href="http://whatsmy.browsersize.com/" rel="nofollow">http://whatsmy.browsersize.com/</a></p>

<p>I can see that my browser height is: Browser window height: 861</p>

<p>Which I should take for granted or what I do not understand in here?</p>
