Jason's Calendar - how to block backward selection?

[espider]

1) Script Title: Jason's Date Input Calendar

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

3) Describe problem:

Hi,
Does anybody know how to block backward selection in Jason's Calendar?
I have got an ordering system on my website and I don’t want anybody to select past dates. I need the calendar to start and be able to select from today onwards.

Thanks a lot for any help.

[MoonScript]

Please read this documentation. The example in the Access via JavaScript section describes this exact scenario.