local function endExpRate(cid)
	if isPlayer(cid) then
		doPlayerSetRate(cid, SKILL__LEVEL, 1)
		doCreatureSetStorage(cid, 1)
		doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "Your double experience time has ended.")
	end
end

function onUse(cid, item, fromPosition, itemEx, toPosition)
	if getCreatureStorage(cid, 1) == -1 then
		doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "1 hour of double experience added!")
		doPlayerSetRate(cid, SKILL__LEVEL, 2)
		doCreatureSetStorage(cid, 1, os.time() + 3600)
		addEvent(endExpRate, 3600 * 1000, cid)
		doRemoveItem(item.uid)
	else
		doPlayerSendTextMessage(cid, MESSAGE_EVENT_ADVANCE, "You still have double experience time left.")
	end
	return true
end