private static function defineHtmlComponent($params)
 {
     $options = array('html' => $params['html']);
     if (isset($params['initJs'])) {
         $options['listeners'] = array('afterrender' => array('fn' => afExtjs::asVar(sprintf('function(){%s}', $params['initJs'])), 'single' => true));
     }
     return $options;
 }