2\4 Middle PP vs shortstack

[truekornfan]

I do not know how to play such hands pf and also on flop. Villain is not a reg shortstacker but someone who just put some money and wanna gamble. For example in this hand villain is 70\20 during 20 hands

iPoker No-Limit Texas Hold'em (NL400), $4.00 BB (4 handed)
Hero($814.3)
BB ($932.5)
CO($100.2)

Hero: Post SB $2.00
BB: Post BB $4.00

Preflop:
Hero is SB with 9[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img]
CO Call $4
<font color="#666666">1 folds</font>
<font color="#CC2222">Hero Raise $14</font>
<font color="#666666">1 folds</font>
<font color="#CC2222">CO Raise $24</font>
Hero???

If I call what to do on flop with one or two overcards?
without overcards?