title: zend framework - Remove optgroup from select box
body: <p>In zend framework, how do you guys remove the optgroup from a select element?</p>
  
  <p>Zend puts them by default but I don't want it.</p>
  
  <p>I would think there would be an option like</p>
  
  <p>array(
  'optgroup' => false
  )</p>