title: javascript refresh popup from another popup
body: <pre><code>Window A opens window B
  Window A opens window C
  
  On Window C (after user action) I need Window B refreshed.
  </code></pre>
  
  <p>some more explanation:
  yes. Window A is the main calendar. window B is opened manually and is smaller and shows stats about the calendar (window A)</p>
  
  <p>When user clicks on a calendar event in window A then Window C opens.  And when the user changes info on Window C then Window B (stats) needs to update.</p>