pupdate.js pop up calendar help

[jmurch]

1) Script Title:
pupdate.js

2) Script URL (on DD):
http://www.dynamicdrive.com/dynamici...opcalendar.htm

3) Describe problem:

This script works great. Gets it's info from the DOM as it should. Currently when it's called it displays the current month and future months. I need the user to be able to select prior months as well. Can anyone help me with this?

TIA, Jeff