What does this value of the CssClass property mean?
<pre><code>CssClass="validate[required,funcCall[checkDate]]"
</code></pre>

<p>this is a property of an <code>&lt;asp:TextBox</code>. and the page has a js function <code>checkDate</code>
im not really sure if its an asp.net functionality or js/jquery, </p>

<p>thanks in advance. </p>
