To get automatic language selection, you must tell your web browser what your preferred language is. How you can do that depends on the browser you are using.
      Edit -> Preferences -> General -> Languages
    
  
      Tools -> Options -> General -> Languages
    
    In older version you have to go to about:config and change
    the value of intl.accept_languages.
  
      Edit -> Preferences -> Navigator -> Languages
    
    Note: with Netscape 4.x you need to make sure you select the
    language from the available choices.  A number of people reported
    problems because they typed in the language by hand.
  
      Tools (or View or Extras) -> Internet Options -> (General) Languages
    
  
      Edit -> Preferences -> Web Browser -> Language/Fonts