make npc talk to specific vocation only

[otuserbyme]

I haven't found it yet
using TFS 1.1
Can someone show me what to add to my npc lua file to make npc only talk to sorc druid or pally and not talk to noob or knight?
This would really be helpful to me
Thanks in advance

 

[StreamSide]

function greetCallback(cid)
    return isInArray({1, 2, 3}, getPlayerVocation(cid))
end
npcHandler:setCallback(CALLBACK_GREET, greetCallback)

 

[otuserbyme]

omg thank you soo much!