Various layouts per window

[Pedro Sousa <pasousa ml gmail com>]

Hi,

I'm trying to build a project with the following description:

A window consisting of two parts:
   - On the left side, exist a treeview containing items with different 
meanings.
   - On the right side, the contents will depend on the item selected 
on the left side.
A possible layout is attached in this mail.

My question is simple, how can I change the right side, after selection 
of the respective item type? Is it possible to do it with glade?

Best regards,
   Pedro Sousa