How to use JQuery to focus on a specific DIV tag?
<p>Say I got a few DIV tags in a HTML page like:</p>

<pre><code>&lt;DIV ID="all"&gt;
    &lt;DIV ID="div1"&gt;              
    &lt;Input type="radio" name="data['site1']['user']" VALUE="1"&gt;user1&lt;br/&gt;
    &lt;/DIV&gt;
    &lt;DIV ID="div2"&gt;              
    &lt;Input type="radio" name="data['site1']['user']" VALUE="2"&gt;user2&lt;br/&gt;
    &lt;/DIV&gt;
    &lt;DIV ID="div3"&gt;              
    &lt;Input type="radio" name="data['site1']['user']" VALUE="3"&gt;user3&lt;br/&gt;
    &lt;/DIV&gt;
    &lt;DIV ID="div4"&gt;              
    &lt;Input type="radio" name="data['site1']['user']" VALUE="4"&gt;user4&lt;br/&gt;
    &lt;/DIV&gt;
&lt;/DIV&gt;
</code></pre>

<p>Is it possible to do the same effect in JQuery like this:</p>

<pre><code>Document.getElementByID('div2').focus();
</code></pre>
