def get_section_id(base_soup):
    """
    학부전공별, 교양필수, 교양선택 등 항목을 선택하는데 필요한 id를 얻는다
    :param base_soup:
    SoupParser.soup_jar['base']
    :return:
    """
    table = base_soup.find('table', {'lsevents': 
        "{TabSelect:[{ResponseData:'delta',ClientAction:'submit'},{}]," +
        "Scroll:[{ResponseData:'delta',EnqueueCardinality:'single'},{}]," +
        "Hotkey:[{ResponseData:'delta',ClientAction:'submit'},{}]}"})
    return table.get('id')
