var InputKeeper = { storageKey: 'lastInput', getInfo: function() { return JSON.parse(Storage.getWithDefault(InputKeeper.storageKey, '{}')); }, keep: function(key, value) { var info = InputKeeper.getInfo(); info[key] = value; Storage.set(InputKeeper.storageKey, info); }, clean: function() { Storage.set(InputKeeper.storageKey, '{}'); } };