local npcid = 90000 -- Entry ID of the XP Vendor   
local SpawnCommand = "$xp npc spawn"   
local TimeNPC = 30 -- In seconds!   

local DontModify = TimeNPC * 600 -- Just don't do it!   

function SpawnCommand_OnChat(event, player, message, type, language)   
     local Mess = message:lower()   
      if (Mess:find(SpawnCommand) == 1) then   
       if (player:GetPlayerLevel() == 80) then   
        player:SendBroadcastMessage("You are already level 80!")   
        return 0   
       else   
        player:SpawnCreature(npcid, player:GetX(), player:GetY(), player:GetZ(), player:GetO(), 35, DontModify, player:GetPhase())   
        player:SendBroadcastMessage("You have succesfully spawned XP Npc for: "..TimeNPC.." seconds!")   
        return 0   
       end   
      end   
end   

RegisterServerHook(16, "SpawnCommand_OnChat")   

function XPGossip(Unit, event, player)   
     if (player:GetPlayerLevel() == 80) then   
      Unit:SendChatMessageToPlayer(15, 0, "You are already level 80!", player) -- Unit will send an Whisper to Player. Only Player can see that.   
      player:GossipComplete()   
     else   
     Unit:GossipCreateMenu(100, player, 0)   
     Unit:GossipMenuAddItem(9, "1,000 XP [1 gold]", 1, 0)   
     Unit:GossipMenuAddItem(9, "10,000 XP [10 gold]", 2, 0)   
     Unit:GossipMenuAddItem(9, "100,000 XP [100 gold]", 3, 0)   
     Unit:GossipMenuAddItem(9, "500,000 XP [500 gold]", 4, 0)   
     Unit:GossipMenuAddItem(9, "1,000,000 XP [1000 gold]", 5, 0)   
     Unit:GossipMenuAddItem(9, "5,000,000 XP [5000 gold]", 6, 0)   
     Unit:GossipMenuAddItem(9, "Nevermind", 999, 0)   
     Unit:GossipSendMenu(player)   
     end   
end   

function XPGossip_OnSelect(Unit, event, player, code, intid, id)   
     if(intid == 998) then -- Back to main menu   
      Unit:GossipCreateMenu(100, player, 0)   
      Unit:GossipMenuAddItem(9, "1,000 XP [1 gold]", 1, 0)   
      Unit:GossipMenuAddItem(9, "10,000 XP [10 gold]", 2, 0)   
      Unit:GossipMenuAddItem(9, "100,000 XP [100 gold]", 3, 0)   
      Unit:GossipMenuAddItem(9, "500,000 XP [500 gold]", 4, 0)   
      Unit:GossipMenuAddItem(9, "1,000,000 XP [1000 gold]", 5, 0)   
      Unit:GossipMenuAddItem(9, "5,000,000 XP [5000 gold]", 6, 0)   
      Unit:GossipMenuAddItem(9, "Nevermind", 999, 0)   
      Unit:GossipSendMenu(player)   
     end   
         
     if(intid == 999) then -- Closing Gossip Menu   
      Unit:SendChatMessage(14, 0, "Come back soon now, ya hear?")   
      player:GossipComplete()   
     end   
         
     if(intid == 1) then -- Buying 1,000 XP For 1 gold   
      if(player:GetCoinage() <= 10000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(10000) -- Taking 1 Gold   
      player:GiveXp(1000) -- Giving 1,000 XP   
      Unit:SendChatMessage(14, 0, "You have bought 1,000 XP for 1 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
     end   
      end   
         
     if(intid == 2) then -- Buying 10,000 XP for 10 gold   
      if(player:GetCoinage() <= 100000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(100000)   
      player:GiveXp(10000)   
      Unit:SendChatM essage(14, 0, "You have bought 10,000 XP for 10 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
     end   
      end   
         
     if(intid == 3) then -- Buying 100,000 XP for 100 gold   
      if(player:GetCoinage() <= 1000000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(1000000)   
      player:GiveXp(100000)   
      Unit:SendCha tMessage(14, 0, "You have bought 100,000 XP for 100 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      end   
     end   
         
     if(intid == 4) then -- Buying 500,000 XP for 500 gold   
      if(player:GetCoinage() <= 5000000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(5000000)   
      player:GiveXp(500000)   
      Unit:SendCha tMessage(14, 0, "You have bought 500,000 XP for 500 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      end   
     end   
         
     if(intid == 5) then -- Buying 1,000,000 XP for 1,000 gold   
      if(player:GetCoinage() <= 100000000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(100000000)   
      player:GiveXp(1000000)   
      Unit:Send ChatMessage(14, 0, "You have bought 1,000,000 XP for 1000 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      end   
     end   
         
     if(intid == 6) then -- Buying 5,000,000 XP for 5,000 gold   
      if(player:GetCoinage() <= 50000000) then   
       Unit:SendChatMessage(14, 0, "You can't afford this.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      else   
      player:DealGoldCost(50000000)   
      player:GiveXp(5000000)   
      Unit:SendC hatMessage(14, 0, "You have bought 5,000,000 XP for 5000 gold.")   
       Unit:GossipCreateMenu(100, player, 0)   
       Unit:GossipMenuAddItem(9, "[Back]", 998, 0)   
       Unit:GossipSendMenu(player)   
      end   
     end   
end   
RegisterUnitGossipEvent(npcid, 1, "XPGossip")   
RegisterUnitGossipEvent(npcid, 2, "XPGossip_OnSelect")