function ForumNavigate(id) {
    try {
        var forumNavComboBox = $find(id);

        if (forumNavComboBox.get_value() == '') {
            window.alert('Please select a forum topic you want to navigate to.');
        }
        else {
            document.location.href = forumNavComboBox.get_value();
        }
    }
    catch (err) {
    }
}