$(document).ready(function(){
         $('.qna_first').slideDown();
             var lastEvent = null;
             var slide  = ".qna >dd";
             var click_area  = ".qna >dt";
             function accordion(){
               if (this == lastEvent) return false;
                lastEvent = this;
            	setTimeout(function(){lastEvent = null}, 200);
            	if ($(this).attr('class') != 'active') {
            			$(slide).slideUp();
            			$(this).next(slide).slideDown();
            			$(click_area).removeClass('active');
                        $(this).addClass('active');
            	} else if ($(this).next(slide).is(':hidden')) {
            			$(slide).slideUp();
            			$(this).next(slide).slideDown();
            	} else {
            			$(this).next(slide).slideUp();
            			$(click_area).removeClass('active');
                }
            }
         $(click_area).click(accordion).focus(accordion);
     });