Widget reordering question

["Sefer Tov" <sefer hotmail com>]

Hi,

I have a question regarding GTK's widget ordering control. I was wondering 
about a containter that carries multiple widgets in the same level in the 
hierarchy (GtkLayout is a good example for that) which then draws its 
children (that may overlap each other) in z-order (as they are defined in 
the X server).
However, how do I perform something like "move to top"/"bring to front"? I 
sometimes want to change the order of the z-ordered child widgets in order 
to display different overlapping patterns.
Is there some way to do that? Surely I'm not the first person to ask about 
that, and yet I was unable to find any reference to such a question.
I'd appreciate anyone who could enlighten me as to how this can be 
performed.
Thanks,
     Sefer.