constructor(public locale: LocaleService, public localization: LocalizationService) {
        super(locale, localization);

        // Adds a new language (ISO 639 two-letter or three-letter code).
        this.locale.addLanguage("zh");
        // Add a new language here.

        // Required: default language, country (ISO 3166 two-letter, uppercase code) and expiry (No days). If the expiry is omitted, the cookie becomes a session cookie.
        this.locale.definePreferredLocale("zh", 'CN', 30);

        // Optional: default currency (ISO 4217 three-letter code).
        this.locale.definePreferredCurrency("CNY");

        this.localization.translationProvider("./resources/locale.");
        this.localization.updateTranslation(); // Need to update the translation.
    }

    constructor(
        private router: Router,
        public locale: LocaleService,
        public localization: LocalizationService,
        private _productService: ProductService
    ) {
        super(null, localization);
        // Adds a new language (ISO 639 two-letter code).
        this.locale.addLanguage('de');
        this.locale.addLanguage('fr');
        this.locale.addLanguage('it');
        this.locale.addLanguage('en');

        this.locale.definePreferredLocale('en', 'US', 30);

        this.localization.translationProvider('./i18n/locale-'); // Required: initializes the translation provider with the given path prefix.
        this.localization.updateTranslation(); // Need to update the translation.

    }

 public ChangeCulture(language: string, country: string, currency: string) {
     this.locale.setCurrentLocale(language, country);
     this.locale.setCurrentCurrency(currency);
     this.localization.updateTranslation();
 }