title: On click select the optgroup in jQuery
body: <pre><code>&lt;optgroup label="Food"&gt;
  </code></pre>
  
  <p>How can i do so when you press this link</p>
  
  <pre><code>&lt;a class='clickMe' id='Food'&gt;Show &lt;/a&gt;
  </code></pre>
  
  <p>It should select the first <code>&lt;option&gt;</code> in the <code>optgroup</code>, that has the optgroup label "Food" (taken from the 'id' attribute in the link)</p>
  
  <pre><code>$('.clickMe').live('click', function(){
  var label = $(this).attr('id');
  
  // How can i select the first option from the optgroup label here?
  
  });
  </code></pre>
  
  <p>Maybe if it helps, the select has name="product[][category]"</p>