I've altered the original script so that it works properly for post year 2000 dates, but the fix means that it only works with JavaScript 1.3 browsers; effectively MSIE 4.0 and later and Netscape 4.5 and later. It does not work at all in Opera.Why the word "undefined" comes up I don't know. If you have any idea, please let me know!
Script by: Michael P. Scholtis