document.body.clientHeight not working? (JavaScript)
<p>document.body.clientHeight not returning correct values (in below code return 0 onload and 20 onresize )</p>

<pre><code>&lt;html&gt;
&lt;head&gt;
&lt;title&gt;Untitled&lt;/title&gt;
&lt;script type="text/javascript" &gt;
function height1()
{
    document.getElementById("viewheight").innerHTML = document.body.clientHeight;
}
&lt;/script&gt;
&lt;/head&gt;

&lt;body onload="height1();" onresize="height1();"&gt;
&lt;span id="viewheight"&gt;&lt;/span&gt;
&lt;/body&gt;
&lt;/html&gt;
</code></pre>

<p>Any Comments..... plz help!</p>
