public function month() {
		if ( $m = get_query_var('m') ) {
			$year  = substr( $m, 0, 4);
			$month = substr( $m, 4, 2);
		} else {
			$year  = get_query_var('year');
			$month = get_query_var('monthnum');
		}
		$month_title = $this->getMonthTitle( $month );

		$this->addCrumb( $this->label('year', $year ), get_year_link( $year ) );
		$this->addCrumb( $this->label('month', $month_title ), get_month_link( $year, $month ) );
	}