function validate_search_form()
    {
        var genre = document.getElementById("genre").value;
        var type = document.getElementById("type").value;
        var keywords = document.getElementById("keywords").value;
        var error = false;
        if(genre == "")
        {
            error = "Please select a genre!";
        }
         else if(type == "")
        {
            error = "Please select a type!";
        }
         else if(keywords == "" || keywords.length < 3)
        {
            error = "Keyword(s) too short. Min. length 3 chars!";
        }
        if(error)
        {
            alert(error);
            return false;
        }
         else
        {
            return true;
        }
    }

    function list_archive(letter)
    {
        var cid = document.getElementById("cid").value;
        self.location.href = "archive.php?l=" + letter + "&cid=" + cid;
    }