[jlalt]

first you need to make a global per player var

PHP Code:

new IamAFK[MAX_PLAYERS char]; 


second you need to make afk command

PHP Code:

CMD:afk(playerid, params[])
{
    //....
    IamAFK{ playerid } = 1;
} 


and back command

PHP Code:

CMD:back(playerid, params[])
{
    //....
    IamAFK{ playerid } = 0;
} 


then use if statement to check if player is afk and give him afk tag here's a ex

PHP Code:

CMD:admins(playerid, params[])
{
    (loopwith i var )
    //... your codes if connected checker, admin level checker....
    if(IamAFK{ i })
    {
      // he is afk wow!
    }
    else
    {
       // he is not afk ._. bad player.
    }
}