GtkAssistant - conditional flow

[<minux centrum cz>]

Hi there,

I have the following situation with GtkAssistant - first page is only informational introduction, second page 
contains two radio buttons, third page should contain some entries and fourth page is the summary. My problem 
is how to handle the third page, because its content depends on the selected radio button on the second page. 
I want to have that content different depending on the radio button chosen on the second page. I don't know 
how to create page content depending on some run-time data/changes during assistant flow. Is there any way 
how to do it ?

Thank you very much
Minux