Auto response

hi guys just wondering
How do I set up an auto reply to my facebook account, when people try to add me, they get a personal message to their inbox etc..?
any ideas
sometimes when I try to add people i get an personal auto reply telling me to join there fan page

cheers Robbie

dose anyone know ??

From what I know there is no available website to do this.. I could be wrong tho.. I know twitter has it.