Accordion.js

(function($){
	'use strict';

	var Accordion = function(elem){
		var _this = this;

		_this.elems = {
			title: elem.find('.title'),
			content: elem.find('.content')
		};

		_this.init = function(){
			_this.elems.title.on('click', _this.toggle);

			if(elem.hasClass('active')){
				_this.toggle(null);
			}
		};

		_this.toggle = function(e){
			if(e !== null){
				e.preventDefault();

				if(elem.hasClass('active')){
					elem.removeClass('active');
				}else{
					elem.addClass('active');
				}
			}

			_this.elems.content.slideToggle('fast');
		};

		_this.init();
	};

	$.fn.accordion = function(){
		var instances = [];

		return this.each(function(){
			var accordion = $(this);

			instances.push(new Accordion(accordion));
		});
	};

}($));