求一个自动刷新html网页的代码，要求是按照北京时间的整点自动刷新

function t(){var d =new Date(),hour = d.getHours(),mins = d.getMinutes(),sec = d.getSeconds(),arr24=['00:00:00','01:00:00','02:00:00','03:00:00','04:00:00','05:00:00','06:00:00','07:00:00',&#