function _createFormat() {
    $objectname                   = null;
    switch( $this->format ) {
      case 'xcal':
        $objectname               = ( isset( $this->timezonetype )) ?
                                 strtolower( $this->timezonetype )  :  strtolower( $this->objName );
        $this->componentStart1    = $this->elementStart1 = '<';
        $this->componentStart2    = $this->elementStart2 = '>';
        $this->componentEnd1      = $this->elementEnd1   = '</';
        $this->componentEnd2      = $this->elementEnd2   = '>'.$this->nl;
        $this->intAttrDelimiter   = '<!-- -->';
        $this->attributeDelimiter = $this->nl;
        $this->valueInit          = null;
        break;
      default:
        $objectname               = ( isset( $this->timezonetype )) ?
                                 strtoupper( $this->timezonetype )  :  strtoupper( $this->objName );
        $this->componentStart1    = 'BEGIN:';
        $this->componentStart2    = null;
        $this->componentEnd1      = 'END:';
        $this->componentEnd2      = $this->nl;
        $this->elementStart1      = null;
        $this->elementStart2      = null;
        $this->elementEnd1        = null;
        $this->elementEnd2        = $this->nl;
        $this->intAttrDelimiter   = '<!-- -->';
        $this->attributeDelimiter = ';';
        $this->valueInit          = ':';
        break;
    }
    return $objectname;
  }