public static string dayName(int day)
        {
            switch (day)
            {
                case 1:
                    return "Saturday";
                case 2:
                    return "Sunday";
                case 3:
                    return "Monday";
                case 4:
                    return "Tuesday";
                case 5:
                    return "Wednesday";
                case 6:
                    return "Thursday";
                case 7:
                    return "Friday";
                default:
                    throw new ArgumentOutOfRangeException("Bad Day");
            }

        }
