function lag_epostadresse( bruker ) {
    var domene = "naturexpo.no";
    var alfakroll = "\@";
    var adresse = bruker + alfakroll + domene;
    document.write(
     "<" + "a" + " " + "href=" + "mail" + "to:" + adresse + ">" + "<font style='font-size:10px;color=#FFFFFF;'>" + adresse + "</font><\/a>");
    }