Move focus to a particular field
<p>I have a button that will add show a form on the page. how can I move the focus to the first field of the form when that button is clicked?</p>

<p>simple example:</p>

<p>HTML:</p>

<pre><code>&lt;form style="display:none;" id="newForm"&gt;
   &lt;input type="text" id="firstField"&gt;
&lt;/form&gt;
&lt;input type="button" id="showForm" value="add new"&gt;
</code></pre>

<p>jQuery:</p>

<pre><code> $("#showForm").click(function(){
     $("#newForm").show();
     //move focus??
});
</code></pre>
