function createRequestStatus() {
    $cnt = count( $this->requeststatus );
    if( 0 >= $cnt )
      return;
    $output = null;
    foreach( $this->requeststatus as $rstat ) {
      $attributes = $this->_createParams( $rstat['params'], array( 'LANGUAGE' ));
      $content    = number_format( (float) $rstat['value']['statcode'], 2, '.', '');
      $content   .= ';'.$this->_strrep( $rstat['value']['text'] );
      if( isset( $rstat['value']['extdata'] ))
        $content .= ';'.$this->_strrep( $rstat['value']['extdata'] );
      $output    .= $this->_createElement( 'REQUEST-STATUS', $attributes, $content );
    }
    return $output;
  }