your airbags aren't working..? lol..
ok ok.. seriously though.. have you checked your SRS cable (right under the steering column, the yellow one)? Make sure it hasn't either been severed, disconnected, or simply loosened (though this last one is rare). Have you made impact with anything recently that might have caused it? Try disconnecting your airbag from your horn plate / cable reel, then connecting it again, see if the light stays on.
These are just basic checks I'd make if my light were to come on (not caused by me.. even though I recently replaced my OEM steering wheel and now my SRS light is on, indefinitely, hehe).