title: Is using window.opener to call a javascript function good practice?
body: <p>I would never have considered using window.opener to call a javascript function in the parent window but have come accross it recently and would like to know.</p>
  
  <ol>
  <li>Is it considered good practice to do so?  I would have thought it is something that you should avoid and with ajax something that you could always design around.</li>
  <li>Is it mainly left over from the days before ajax and tabed browsing?</li>
  </ol>