lever spawn (summons)

[smurf]

can anyone give me a script for a lever spawn?
so you have to use coins and when you use the lever it summons a monster and takes 1 coin away

thxs

 

[Shawak]

function onUse(cid, item, frompos, item2, topos)

local cost = 50000
local monster = "Demon"
local checkpos = {x=737, y=965, z=7, stackpos=253} 
local monsterpos = {x=737, y=965, z=7} 
check = getThingfromPos(checkpos)

	if check.itemid == 0 then 
		if doPlayerRemoveMoney(cid, cost) == TRUE then
			doSummonCreature(monster, monsterpos)
		else
			doPlayerSendTextMessage(cid,22, "You need "..cost.." gold for a Summon.")
		end
	else
		doPlayerSendTextMessage(cid,22, "You already have a Summon or you don't stand on the right Field.")
	end
	return TRUE
end

I hope it work .

Regards,
Shawak