[AccessD] Passing aarray index to docmd

I am trying to pass the index of an array to a Docmd. Cant get the syntax right. Any ideas?
I have a drop down list with a 0 based index. I need to grab the index and pass it to the docmd?
 
Martin
 
 
Martin WP Reid
Training and Assessment Unit
Riddle Hall
Belfast
 
tel: 02890 974477