Reasonable play? Or Ridiculous?

[jcx]

Trying to determine if I made the correct play. Button has been tight and aggressive. Comments appreciated.

Pot Limit Omaha Hi/Lo Ring game
Blinds: $1/$2
7 players
Converter

Pre-flop: (7 players) Hero is BB with A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/spade.gif[/img]
2 folds, MP1 calls $2, CO folds, Button raises to $9, SB folds, Hero calls $7, MP1 folds.

I did not raise here as my Aces are not particularly strong (I have button covered, but his stack is not short). The hand is certainly worth taking a flop with, but I want to be able to dump it if it comes down bad.

Flop: 6[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] 4 [img]/images/graemlins/diamond.gif[/img]
Hero checks, Button bets $19.95, Hero raises to $79.8, Button calls $59.85.

Thinking the button might have the other 2 Aces and is making a continuation bet, I checkraise w/ top 2 on this fairly coordinated board. Reasonable? or Ridiculous? Should I have led out instead, or is this a check/fold since I have little chance of improvement (I don't think a check/call here would be a good move)? I interpret the buttons' call as a draw of some sort (more likely str8 since I have the A[img]/images/graemlins/diamond.gif[/img]). At this point I plan on potting the turn if a relatively safe card hits.

Turn: 3[img]/images/graemlins/club.gif[/img] ($180.6, 2 players)
Hero checks, Button is all-in $114.24, Hero folds.

Bad turn card. Button almost certainly has a lo and is freerolling for hi (If I'm not beat already).

So where did I screw up?