static popup with a WOForm

Hi guys,
I'm sure it's a dummy one, but I have to ask;)
I need to use a static popup menu in a dynamic form.
I cannot use an NSArray in my code to generate the list of static  
items as I have to use "optgroup".
Beru sent me some times ago a sample to generate optgroup popup but  
as I didn't have the opportunity to implement it in my previous  
projects I still don't know how to use it. I'll try to use it later  
for this project, but I'd like to know how to do it the "static way":)

So here's what I have, a static popup menu with some "option".
I need to set a qualifier in my code based on the "value" of the  
selected item in the popup.
I think I could just do all that static and send the request to a  
Direct Action, but I hope there's something more simple...

Could someone point me to a sample or give me some clues on what  
should be in my action to get the "value" from a static popup?

Thanks a lot,

Xavier