function createProdid() {
    if( !isset( $this->prodid ))
      $this->_makeProdid();
    switch( $this->format ) {
      case 'xcal':
        return ' prodid="'.$this->prodid.'"'.$this->nl;
        break;
      default:
        return 'PRODID:'.$this->prodid.$this->nl;
        break;
    }
  }
function createProdid() {
    if( !isset( $this->prodid ))
      $this->_makeProdid();
    switch( $this->format ) {
      case 'xcal':
        return ' prodid="'.$this->prodid.'"'.$this->nl;
        break;
      default:
        return 'PRODID:'.$this->prodid.$this->nl;
        break;
    }
  }
function createProdid ( ) { if ( ! isset ( $ this -> prodid ) ) $ this -> _makeProdid ( ) ; switch ( $ this -> format ) { case 'xcal' : return ' prodid="' . $ this -> prodid . '"' . $ this -> nl ; break ; default : return 'PRODID:' . $ this -> prodid . $ this -> nl ; break ; } }
creates formatted output for calendar property prodid

@author Kjell-Inge Gustafsson <ical@kigkonsult.se>
@since 0.9.7 - 2006-11-20
@return string
creates formatted output for calendar property prodid