Preflop vs. Unknowns

first orbit at table

Party Poker 10/20 (6max, 6handed)

Preflop: Hero is Button with 8/images/graemlins/club.gif, 8/images/graemlins/spade.gif.
1 fold, MP raises, CO calls, Hero 3-bets...

is this good?
what is your 3-bet range here?
what is your calling range?

[wackjob]

standard 3-bet. search the forums for peoples ranges this question has been asked a lot of times and answered a lot of times already.