/**
  * 
  * get post or get application
  */
 public static function getPostGetVar($name, $default = "", $filter = "STRING")
 {
     if (empty(self::$app)) {
         self::$app = JFactory::getApplication();
     }
     $jinput = self::$app->input;
     $var = $jinput->get($name, $default, $filter);
     return $var;
 }