var days_tazuru = [
'2017/12/28', 
'2017/12/29',
'2017/12/30',
'2017/12/31', 
'2018/01/01',
'2018/01/02',
'2018/04/01',
'2018/07/24',
'2018/08/07',
'2018/08/21',
'2018/08/29',
'2019/07/24',
'2019/08/07',
'2019/08/21',
'2019/08/29',
]
var days_senkaku = [
'2017/12/28', 
'2017/12/29',
'2017/12/30',
'2017/12/31', 
'2018/01/01',
'2018/01/02',
'2018/04/01',
'2018/07/20',
'2018/07/21',
'2018/07/28',
'2018/07/31',
'2018/08/10',
'2018/08/11',
'2018/08/17',
'2019/07/20',
'2019/07/21',
'2019/07/28',
'2019/07/31',
'2019/08/10',
'2019/08/11',
'2019/08/17',
'2019/08/18',
'2019/12/25',
'2019/12/29',
'2019/12/30',
'2019/12/31',
'2020/01/01',
'2020/01/02',
'2020/01/03',
'2020/01/04',
'2020/01/05',
'2022/12/31',
'2023/01/01',
'2023/01/02',
'2023/01/03',
'2023/01/04',
]