title: Zend framework; Getting controller to use different viewer
body: <p>I am using the Zend Framework.</p>
  
  <p>I have a controller named 'UserController' that has a public function displayAction().</p>
  
  <p>I would like to know how I can get that action method to use a different viewer than the default display.phtml.</p>
  
  <p>Any help is appreciated.</p>