substitution ?

[Maverick]

I don't have my rule book in front of me but I believe that the rules only say that a player who is subbed out can't return until the clock has properly started and the ball been live. I don't think there is anything about a substitute entering the game and then being subbed back out during the same dead ball period. Someone help me out on that. If I'm correct, I believe the original sub could enter then be subbed back out by a different player as long as it wasn't the original played he/she came in for.