Add Menu for Class? LUA++

[Performer]

Hey. Ive been working on a script. that is Nebels Skill NPC. But in Lua++
I need it so the npc gets playerclass. and for certain classes it shows certain spells.

This is what i have so far:

/*Written by Performer of MMOwned.com. Thanks To Nebels for C++ Version. May not be re-released or used in other releases without asking Performer*/

function Skill_Menu (pUnit, event, player)
pUnit:GossipCreateMenu(100, player)
pUnit:GossipMenuAddItem(0, "What Spells Can I Learn?", 1, 0)
pUnit:GossipMenuAddItem(5, "Reset Talent Points", 2, 0)
pUnit:GossipSendMenu(player)
end 

function Skill_on_gossip_talk(pUnit, event, player)
    Skill_Menu(pUnit, player)
end

function Skill_on_gossip_select(pUnit, event, player, id, intid, code)
if(intid == 1) then
GetPlayerClass()