Day of week calculator lite (BASIC)

Description

This is probably the best of all three versions of this program that I made!
This is a lite version of the day of week program, which calculates the day of week of any given date.

When you try to calculate on what day of the week a date was using the DayofWk( command, you might have noticed that the answer wasn't correct.
I don't expect you'll have seen that though, but I've tested it with several dates and I can tell you it isn't correct.
If you want to know more about this, you can read the 'readme' file.

There are some important notes for some country's noted in the 'readme' file!

Current version: 1.0.0