local NPCID = xxx

local function MountVendor_OnGossip(pUnit, event, player)
    if(not player:IsGm()) then
        ---- would be nice if it had a timer before activates so you get time to read the private message ---
        player:SendBroadcastMessage("You have been caught being in a unauthorized zone for players within the Affliction WoW Staff Team. You will be punished for your acts within 3 seconds!")
        player:SetPlayerLock(1)

        ---- Public Message Section ---------
        local race = player:GetPlayerRace()
        if race==1 or race==3 or race==4 or race==7 or race==11 then
            player:SendAreaTriggerMessage(player:GetName().." of the Alliance have been caught being on GM Island, character lock activated")
        else
            player:SendAreaTriggerMessage(player:GetName().." of the Horde have been caught being on GM Island, character lock activated")
        end

    else
        -------If player is GM then----------
        player:SendBroadCastMessage("Have a nice day sir.")
        pUnit:GossipCreateMenu(500, player, 0)
        --[[
        This wont work properly. Use GossipMenuAddItem. See how it is used.
        pUnit:VendorAddItem(2586, 1, 0) --- Gamemaster's Robe ---
        pUnit:VendorAddItem(11508, 1, 0) --- Gamemaster's Slippers ---
        pUnit:VendorAddItem(12064, 1, 0) --- Gamemaster's Hood ---
        ]]
        pUnit:GossipSendMenu(player)
    end
end

-- register the hook
RegisterUnitGossipEvent(NPCID, 1, MountVendor_OnGossip)