/**
  * Wrapper function for link generation.
  *
  * @author  Martin Helmich
  * @version 2007-07-19
  * @param   string $str   The link string
  * @param   array  $param The URL parameters
  * @return  string        The link
  */
 function pi_linkTP($str, $param)
 {
     return $this->parent->pi_linkTP($str, $param);
 }