$(document).ready(function () {
    $(".faq_title").click(function () {
        faq_id = $(this).attr('id');
        answer_id = faq_id + "_answer";
        if ($("#"+answer_id).css('display') == 'none')
        {
            $("#"+answer_id).show("slide", { direction: "down" }, 1000);
            $(this).removeClass('faq_title_close');
            $(this).addClass('faq_title_open');
        } else {
            $("#"+answer_id).hide("slide", { direction: "up" }, 1000);
            $(this).removeClass('faq_title_open');
            $(this).addClass('faq_title_close');
        }
    });
});