vbscript: How do I know when my textbox has been updated?

Greetings gurus.

I am working on a database frontend.

Included in this project is a javascript datepicker
(FYO: http://www.dynarch.com/projects/calendar/)

Everything is working, except for one niggly thing:
When I update a field with a date from this datepicker, I also want to make a
button visible (or invisible if the field is empty).

Things I have tried so far:

1. The _onchange event - seems to fire only after _blur
2. The _onafterupdate event
2. Calling the vb function from the javascript (My javascript is sketchy)

Thanks for your time :thumb:
[631 byte] By [HairyMonkeyMan] at [2007-11-19 2:49:05]