function SystemManager.getSystemByModel(q)return TableUtils.find(systems,function(U)if U:getModel()==q then return true end end)end
--[[
	Returns the system associated with specified model
]]
function SystemManager.getSystemByModel(model)
	return TableUtils.find(systems, function(system)
		if system:getModel() == model then
			return true
		end
	end)
end
