// Add teaser behavior (must come before resizable)
  if (!empty($element['#teaser'])) {
    drupal_add_js('misc/teaser.js');
    // Note: arrays are merged in drupal_get_js().
    drupal_add_js(array('teaserCheckbox' => array($element['#id'] => $element['#teaser_checkbox'])), 'setting');
    drupal_add_js(array('teaser' => array($element['#id'] => $element['#teaser'])), 'setting');
    $class[] = 'teaser';
  }

  // Add resizable behavior
  if ($element['#resizable'] !== FALSE) {
    drupal_add_js('misc/textarea.js');
    $class[] = 'resizable';
  }

  _form_set_class($element, $class);
  return theme('form_element', $element, '<textarea cols="'. $element['#cols'] .'" rows="'. $element['#rows'] .'" name="'. $element['#name'] .'" id="'. $element['#id'] .'" '. drupal_attributes($element['#attributes']) .'>'. check_plain($element['#value']) .'</textarea>');
}