title: Flex/Accordion: Conditionally hide a child
body: <p>How do I hide a child in a accordion? Using visible doesn't seem to work and enabled isn't what I'm after.</p>
  
  <pre><code>&lt;mx:Accordion&gt;
  &lt;mx:VBox width="100%" height="100%" label="Foo" id="viewOverview" visible="false"&gt;
  ...
  &lt;/mx:VBox&gt;
  ...
  &lt;/mx:Accordion&gt;
  </code></pre>