[introzen]

I'll try to explain from what I believe you ask for.

pawn Code:

new timer = SetTimerEx("KickInactivePlayers",1000*60*10,true,playerid);

forward KickInactivePlayers(playerid);
public KickInactivePlayers(playerid)
{
     if(!IsPlayerActive(playerid)) Kick(playerid);
     return 1;
}

Where "1000*60*10" is actually:

Code:

1000 milliseconds * 60 (= 1 minute) * 10 (= 10 minutes)

Anytime you need to cancel this timer, just use:

pawn Code:

KillTimer(timer);

And ofcourse you'd have to state a function for:

pawn Code:

IsPlayerActive(playerid)

Hope it helps!