protected function getOrderLimitSql() {

		$router = Router::getInstance();
		
		$ret = '';
		
		if ($router->order) {
			$orderOptions = $this->getOrderOptions();
			if (isset($orderOptions[$router->order])) { 
				$ret = ' ORDER BY ' . $orderOptions[$router->order];
			}
		}

		$ret .= ' LIMIT ' . $this->pagination->start . ', ' . $this->pagination->limit;
		
		return $ret;
		
	}