get batting order and starting member flg
        :param batter: Beautifulsoup object(batter element)
        :return: batting order(1-9), starting member flg(True or False)

def _get_batting_order_starting_flg(cls, batter):
        """
        get batting order and starting member flg
        :param batter: Beautifulsoup object(batter element)
        :return: batting order(1-9), starting member flg(True or False)
        """
        bo = batter.get('bo', None)
        if not bo or len(bo) != 3:
            return False, False
        batting_order = bo[:1]
        starting = True if bo[1:3] == '00' else False
        return batting_order, starting