Redirects a user to the page based on their language. For example, English language user browsers, which report the language as 'en' in most cases, can be redirected to an English page, while Spanish language user browser, which report the language as 'es' in most cases, can be sent to a separate Spanish page. This method works well for redirecting users in all the languages that you set up. Instructions on adding more languages are included in the source code.