Swfaddress detect event origin

i have a humble question
in SWFAddress 2.x, how can i detect whether an event is called from browser or from flash, with out making custom variables etc?

for instance, i have dynamic material on several pages. i was on one and moved to another. when i press the back button i’d like to show the last info that was there, while when accessing that page from flash the info depends on user input every time.
never mind.

anybody around knows how?

very many thanks,