[Trinidad] panelPopup: how to avoid full page refreshing

[Renzo Tomaselli]

Hi, I'm using tr:panelPopup in modal mode only. It works well, but since 
it can host alternative panels (e.g. components in the Facelets sense), 
the entire page is refreshed whenever a panel is replaced by another 
one. Not a nice effect.
Panel navigation occurs from user actions (next/previous) inside the 
panel itself.
AFAIK PPR is there just to avoid this effect, e.g. I should be able 
somehow to force panel contents refresh only.
But I don't know how to do it.
Suggestions are welcome.
-- Renzo