i'm new at FLARtoolkit

i trying to make a game with the marker
like

when i show first marker to webcam it will go to another frame (or open another class) where i can play the game with character A

and if i use another marker it will go to the game with character B

i really need your help

maybe just gimme a hint how to get value from the marker that i show to webcam

really need your help
thanks

nb:
sorry for the bad grammar