var Storage = {
	get: function(key) {
		return window.localStorage.getItem(key);
	},

	set: function(key, value) {
		if (typeof(value) == 'object') {
			window.localStorage.setItem(key, JSON.stringify(value));
		} else {
			window.localStorage.setItem(key, value);
		}
	},

	getWithDefault: function(key, defaultValue) {
		var value = this.get(key);
		
		if (value != null) {
			return value;
		}
		
		if (arguments[1]) {
			this.set(key, defaultValue);
			return defaultValue;
		}
		return null;
	},

	remove: function(key) {
		var value = this.get(key);
		window.localStorage.removeItem(key);
		return value;
	}
};

var FlightStorage = {
	getQuery: function() {
		return {
			from: Storage.get('flightFrom'),
			to: Storage.get('flightTo'),
			date: parseInt(Storage.get('flightDate')),
			moreDays: Storage.get('flightFiveDays') == 'true'
		};
	}
};