Amazon S3 redirects based on browser language

Question

Amazon S3 redirects based on browser language

I have a multilingual site. I want to redirect English users to / en and Spanish users to / es.

I am currently doing this with Javascript, but I feel there is a better way.

<html>
<body>
<script type="text/javascript">
    var language = window.navigator.userLanguage || window.navigator.language;
    if (["es","en"].indexOf(language) != -1){
        window.location.replace(language);    
    }
    else{
        // other languages go to en
        window.location.replace("/en");
    }
</script>
</body>
</html>