[Zope-CMF] Dynamic Select lists

[Alec Mitchell]

I have an Archetypes type that I've created whose schema contains two 
LinesFields using MultiSelectWidgets.  The problem is that I need the select 
list in the second field to be determined by the selection made in the first 
field.  I guess this can be accomplished by using a two page edit form, which 
saves on each submit; or by using Javascript to save then reload the form 
onSelect in the first widget (requiring a custom widget I guess).  Either of 
these methods seem to require some way to override the default behaviors of 
the CMF FormTool, and I'm not sure how to go about this.  I don't thik it 
will be practical to use javascript to fill in the second field because the 
value determination process will be somewhat complex.  Perhaps there is an 
easier (or even an obvious) way?

Thanks for any help,
Alec Mitchell