stock SetAdminDuty(playerid, state)
{
    switch(state)
    {
        case 1:
        {
            OnDuty[playerid] = 1;
            
            SetPlayerHealth(playerid, FLOAT_INFINITY);
            
            SCMTAEX(COLOR_YELLOW, "» %s (%d) is now on duty.", ReturnPlayerName(playerid), playerid);

            SetPlayerColor(playerid, COLOR_YELLOW);
        }
        
        case 0:
        {
            OnDuty[playerid] = 0;
            
            SetPlayerHealth(playerid, MAX_HEALTH);
            
            SCMTAEX(COLOR_YELLOW, "» %s (%d) is now off duty.", ReturnPlayerName(playerid), playerid);
            
            new col = random(sizeof (PlayerColors));
            SetPlayerColor(playerid, PlayerColors[col]);
        }
    }
}

switch(OnDuty[playerid])
    {
        case 0: SetAdminDuty(playerid, 1); //Admin duty is off, enable it...
        case 1: SetAdminDuty(playerid, 0); //Admin duty is on, disable it...
    }