function RefreshTime(targetDate){
// 獲取本地當前時間,截止時間 - 當前時間 = 倒計時時間
var Today = new Date();
var endDate = new Date(targetDate);
var leftTime = endDate.getTime() - Today.getTime();
var leftSecond = parseInt(leftTime / 1000);
var Day = Math.floor(leftSecond / (60 * 60 * 24));
var Hour = Math.floor((leftSecond - Day * 24 * 60 * 60) / 3600);
var Minute = Math.floor((leftSecond - Day * 24 * 60 * 60 - Hour * 3600) / 60);
var Second = Math.floor(leftSecond - Day * 24 * 60 * 60 - Hour * 3600 - Minute * 60);
if (Day < 0) {
clearInterval(timer); // 清除定時器
document.getElementById('endTips').innerHTML = '活動已結束';
document.getElementById('wrapDate').style.display = 'none';
return;
}
}