window.addEvent('domready', function() {
    //hide all answers
    $$('.faq_answer').each(function(el) {
        el.set('display','none');
    });
    //for every question div
    $$('.faq_question').each(function(el) {
        //create a slider
        var slyder = new Fx.Slide(el.get('rel')).hide();
        //click event
        el.addEvent('click', function(e) {
            //toggle!
            e = new Event(e); slyder.toggle(); e.stop();
        });
    });
    //"show" all answers
    $$('.faq_answer').each(function(el) {
        el.set('display','block');
    });
});