Using VB in word 2003

I created a custom toolbar that controls documents flow for users that are not to familiar with windows explore. I started to modify an existing button's text to show the users whose directory the data is being sent to. When you create a form you have a form_load that is use to initialize your variables. Is there anything similiar that would allow me to reset text button when a new doc is opened?

This approach was use to allow the data entry users quick visual look at whose data they are saving and where.

Thanks...

Tony