How to detect user’s language (the simple way) [duplicate]

Answer 1

The answer @Pekka pointed to is probably your best bet. It's actually an elegant solution, considering there is no such facility in JavaScript itself.

The author of the solution provides a very clear example:

var language;
$.ajax({ 
    url: "http://ajaxhttpheaders.appspot.com", 
    dataType: 'jsonp', 
    success: function(headers) {
        language = headers['Accept-Language'];
        nowDoSomethingWithIt(language);
    }
});

Of course, you could set language to some default value. And the result is an unparsed string, so there would need to be some more logic in nowDoSomethingWithIt().

Have a look at this working demo: http://jsfiddle.net/seYLA/