NL100 TP TK against maniacs. stack off on the flop?

[2weak]

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.50/$1
4 players
Converter

Stack sizes:
UTG: $96.50
Button: $81.95
Hero: $105.25
BB: $151.85

Pre-flop: (4 players) Hero is SB with K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
UTG folds, <font color="#cc0000">Button raises to $5</font>, <font color="#cc0000">Hero raises to $15</font>, BB calls, Button calls.

Flop: 3[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] ($45, 3 players)
Hero checks, <font color="#cc0000">BB bets $5</font>, <font color="#cc0000">Button raises to $20</font>,







Button is 85/40/0.76 over 75 hands. he is a maniac and aggressive postflop (his aggr factor is so low because he didnt make any moves in the last few hands). I saw him raising flushdraws on the flop.

BB is 67/2.5/0.86 over 40 hands and really aggressive postflop.

should i push here? (im pretty sure im ahead against the button)[img]/images/graemlins/confused.gif[/img]