$(function() {
    var accordion = function(el, multiple) {
        this.el = el || {};
        this.multiple = multiple || false;

        // variables privadas
        var links = this.el.find('.link');
        // evento
        links.on('click', { el: this.el, multiple: this.multiple }, this.dropdown);
        //links.click(function(){});

    }
    accordion.prototype.dropdown = function(e) {
        var $el = e.data.el;
        $this = $(this),
            $next = $this.next();

        $next.slidetoggle();
        $this.parent().toggleclass('open');

        if (!e.data.multiple) {
            $el.find('.submenu').not($next).slideup().parent().removeclass('open');
        };
    }

    var accordion = new accordion($('#accordion'), false);
});