构建语言切换器 - 仅限2种语言 - ASP.NET MVC

ASP.NET MVC app, close to completion, then it was decided that it needed a language switcher. It will simply be two languages: English and Japanese. They should be able to switch between the two, but if one is not selected it should choose whichever is the default language of the browser.ASP.NET MVC app, close to completion, then it w