title: Flex popup manager, mousedown outside of the popup removes the popup
body: <p>If you create a popup via:</p>
  
  <p>PopUpManager.addPopUp( popup, this, false );
  PopUpManager.bringToFront( popup );</p>
  
  <p>It will create a popup and bring it on top of any other visual piece. I have one problem though. This 'popup' needs to stay up even when the user interacts with the background.</p>
  
  <p>I would use modal, but I need the ability to interact with the back. Any way to tell the popup manager not to remove the popup when the user clicks off of it?</p>
  
  <p>Thanks!</p>