倒计时

    // 倒計時
    var intDiff = parseInt(${countTime!0});// 倒计时总秒数量
    timer(intDiff);

    function timer(intDiff) {
        window.setInterval(function () {
            var day = 0,
                    hour = 0,
                    minute = 0,
                    second = 0;//时间默认值
            if (intDiff > 0) {
                day = Math.floor(intDiff / (60 * 60 * 24));
                hour = Math.floor(intDiff / (60 * 60)) - (day * 24);
                minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);
                second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
            }
            if(day < 10 && day > 1){
                day = "0" + day;
            }
            if(minute < 10){
                minute = "0" + minute;
            }
            if(hour < 10){
                hour = "0" + hour;
            }
            if(second < 10){
                second = "0" + second;
            }
            if (day == 0) {
                $(".remaining_time>span").html("<span>" + hour + "时</span><span>" + minute + "分</span><span>" + second + "秒</span>")
            } else {
                $(".remaining_time>span").html(day + "天" + "<span>" + hour + "时</span><span>" + minute + "分</span><span>" + second + "秒</span>");
            }
            $('.day_show').html(day + "天");
            $('.hour_show').html('<s id="h"></s>' + hour + '时');
            $('.minute_show').html('<s></s>' + minute + '分');
            $('.second_show').html('<s></s>' + second + '秒');
            intDiff--;
            //当倒计时=0时,刷新整个页面
            if(intDiff==0){
                
                $.ajax({
                    type : "POST",
                    url :  domain+"/product/presell.html",
                    data : {productId:$("#productId").val()},
                    dataType : "json",
                    success : function(data) {
                        if(data.success){
                            location.reload();
                        }
                    },
                    error : function() {
                        location.reload();
                        //$.dialog('alert','提示','数据加载失败！',2000);
                    }
                });
                //location.reload();

            }
        }, 1000);
    }