JS实现商品倒计时

function fresh() {
    var time1 = document.getElementById("timeD").value;
    for (var i = 1; i <= 5; i++) {
        var endtime = new Date(time1);
        var nowtime = new Date();
        var leftsecond = parseInt((endtime.getTime() - nowtime.getTime()) / 1000);
        d = parseInt(leftsecond / 3600 / 24);
        h = parseInt((leftsecond / 3600) % 24);
        m = parseInt((leftsecond / 60) % 60);
        s = parseInt(leftsecond % 60);
        
        document.getElementById("times_"+i).innerHTML = h + "小时" + m + "分" + s + "秒";
        if (leftsecond <= 0) {
            break;
        }
    }
}
fresh()
var sh;
sh = setInterval(fresh, 1000);