js比较时间

    var test1 = txtBirthday.value;
            var test2 = timetoday.toLocaleDateString().replace('年', '-').replace('月', '-').replace('日', '');

            var arr = test1.split("-");
            var starttime = new Date(arr[0], arr[1], arr[2]);
            var starttimes = starttime.getTime();

            var arrs = test2.split("-");
            var lktime = new Date(arrs[0], arrs[1], arrs[2]);
            var lktimes = lktime.getTime();
            if (starttimes>lktimes) {
           
              $("#spanBirthday").html("日期不能大于当前时间");
              return false;