//Change the localization bundle ! en.lproj will be use
[[LanguagesManager sharedInstance] setLanguage:@"en"];

//Change the localization bundle ! fr.lproj will be use
[[LanguagesManager sharedInstance] setLanguage:@"fr"];

//Change the language of your app for a particular login/user 
[[LanguagesManager sharedInstance] setLanguage:@"en" forLogin:@"[email protected]"]

JMOLocalizedString(@"key", @"your comment")

[[LanguagesManager sharedInstance] setNotificationEnable:YES];

[[NSNotificationCenter defaultCenter] addObserver:self           
                                      selector:@selector(reloadMyLocalizableElements:)
                                      name:LanguagesManagerLanguageDidChangeNotification
                                      object:nil];