function gadget:GameFrame(frame)
	if frame % 12 < .1 then
		for unitId, timeLeft in pairs(saleTime) do
			if timeLeft < frame then
				local unitDefId	= spGetUnitDefID(unitId)
				local teamId	= spGetUnitTeam(unitId)
				local ux, uy, uz = Spring.GetUnitPosition(unitId)
				spDestroyUnit(unitId, false, true)
				--Spring.Echo(resCount, type(resCount))
				if resCount and resCount ~= "" then
					for i = 1,resCount do
						resources[teamId][i] = min(resources[teamId][i] + (unitCost[unitDefId][i] or 0) * refundFactor, capacity[teamId][i])
					end
				else
					local currentMetal	= Spring.GetTeamResources(teamId,"metal")
					local currentEnergy	= Spring.GetTeamResources(teamId,"energy")
					local unitMetal		= (UnitDefs[unitDefId].metalCost or 0) * refundFactor
					local unitEnergy	= (UnitDefs[unitDefId].energyCost or 0) * refundFactor

					--Spring.Echo(currentMetal, unitMetal)
					Spring.SetTeamResource(teamId, "m", currentMetal + unitMetal)
					Spring.SetTeamResource(teamId, "e", currentEnergy + unitEnergy)
					Spring.PlaySoundFile('sounds/chaching.wav', 5, ux, uy, uz)
				end
			end
		end
	end
end