function filter_headlines(element) {
    var selected_index = element.selectedIndex;
    var selected = element.options[selected_index].value;

    if(selected=="all") {
        $("#recent_headline_list li").slideDown();
        return;
    }
    $("#recent_headline_list li:not([class="+selected+"])").hide();
    $("#recent_headline_list li[class="+selected+"]").slideDown();
}