What web framework uses "javascript:__doPostBack()"
<p>I've seen this all over the web</p>

<pre><code>javascript:__doPostBack('ctl00$ContentPlaceHolder1$lnk2','')
</code></pre>

<p>Checking headers of the last place I saw it didn't reveal a server side language.</p>

<p>What server side language and/or framework encourages this style of link?</p>
