rivered top two pair,5/10 nl

[invisibleleadsoup]

i haven't been at the table very long,but i know most of the players,and the ones involved in this hand are all fairly bad,usually passive but prone to making weird bluffs sometimes,and overvaluing their hands

everyone has between $800 and $1000 except utg who has 500
so i have K[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img] in the BB,utg makes it 30 (an utg raise isnt particularly a sign of strenght with this player
the button calls,as does the small blind,and i call in the big blind

flop is 8 [img]/images/graemlins/heart.gif[/img] T [img]/images/graemlins/diamond.gif[/img] K [img]/images/graemlins/spade.gif[/img]

its checked around

turn is 3 [img]/images/graemlins/heart.gif[/img]

sb bets 80,i call,so does button

river is J [img]/images/graemlins/diamond.gif[/img] and SB bet out 300

so call or fold?