Value is 2. Display time using the server's long time format. Value is 3. Display time using the server's short time format. Value is 4.
Tristate options have three possible values.
If the value is -2, it means use the system default. If it is -1, it means turn on the option. If it is 0, turn off the option. FormatNumber is used to format numerical values. It is almost exactly like FormatCurrency, only it does not display a dollar sign.