jQuery.fn.accordion=function(){function update(a){$("dt:not(.active)",a).css("cursor","pointer");$("dt.active",a).css("cursor","");$("dd div",a).hide(300);$("dd span.remark",a).show();$("dt.active",a).next().children("div").show(300);$("dt.active",a).next().children("span.remark").hide()}return this.each(function(){var a=$(this),active=$("dt.active",a);update(a);$("dt",a).click(function(){if(!$(this).hasClass("active")){active&&active.removeClass("active");active=$(this).addClass("active");update(a)}})})};