title: How to get rendered XHTML from a Wicket panel
body: <p>Users of my Wicket application should be able to edit some of the panels' output (X)HTML. There will be a button or link on each panel that, when clicked, will get the rendered content and use/open an editor such as TinyMCE.</p>
  
  <p>I think I want some sort of <code>getRenderedXTML()</code> method for the panel, but have no clue how to get the rendered output programmatically. How can I do this?</p>