function createContact() {
    $cnt = count( $this->contact );
    if( 0 >= $cnt )
      return;
    $output = null;
    foreach( $this->contact as $contact ) {
      $attributes = $this->_createParams( $contact['params'], array( 'ALTREP', 'LANGUAGE' ));
      $content    = $this->_strrep( $contact['value'] );
      $output    .= $this->_createElement( 'CONTACT', $attributes, $content );
    }
    return $output;
  }