title: Looking for sample code that allows clicking on menu to reload center panel only
body: <p>I have a page that shares the same footer / header layout and design.</p>
  
  <p>I am looking for sample javascript code that allows clicking on menu to reload center panel only.  I am not doing it in JSP.  I hope to get some sample javascript code.</p>
  
  <p>Can I put the center panel in an iFrame or another type of widget?</p>
  
  <p>What is the most efficient way to do this?</p>
  
  <p>Thanks a lot.</p>