function set_language(lang)
{
    baseurl = new String("http://www.alholmenskraft.com/");
    baseurl2 = new String("http://www.akraft.fi/");
    langs = "en|se|fi";
    re = new RegExp(baseurl + "(" + langs + ")(/.*)");
    re2 = new RegExp(baseurl2 + "(" + langs + ")(/.*)");

    if (re.test(document.location.href))
    {
        document.location.href = document.location.href.replace(re, baseurl + lang + "$2");
    }
    else if (re2.test(document.location.href))
    {
        document.location.href = document.location.href.replace(re2, baseurl + lang + "$2");
    }
    else
    {
        document.location.href = baseurl + lang + "/";
    }
}