Acordion menu first tab not open how can I make open
<pre><code>    (function (e) {
        var a = function () {};
        e.extend(a.prototype, {
            name: "accordionMenu",
            options: {
                mode: "default",
                display: null,
                collapseall: !1,
                toggler: "span.level1.parent",
                content: "ul.level2",
                onaction: function () {}
            },
            initialize: function (a, b) {
                var b = e.extend({}, this.options, b),


  f = a.find(b.toggler);
            f.each(function (a) {
                var c = e(this),
                    d = c.next(b.content).wrap("&lt;div&gt;").parent();
                d.data("height", d.height());
                c.hasClass("active") || a == b.display ? d.show() : d.hide().css("height", 0);
                c.bind("click", function () {
                    g(a)
                })
            });
            var g = function (a) {
                var c =
                    e(f.get(a)),
                    d = e([]);
                c.hasClass("active") &amp;&amp; (d = c, c = e([]));
                b.collapseall &amp;&amp; (d = f.filter(".active"));
                switch (b.mode) {
                case "slide":
                    c.next().stop().show().animate({
                        height: c.next().data("height")
                    }, 400);
                    d.next().stop().animate({
                        height: 0
                    }, 400, function () {
                        d.next().hide()
                    });
                    setTimeout(function () {
                        b.onaction.apply(this, [c, d])
                    }, 401);
                    break;
                default:
                    c.next().show().css("height", c.next().data("height")), d.next().hide().css("height", 0), b.onaction.apply(this, [c, d])
                }
                c.addClass("active").parent().addClass("active");
                d.removeClass("active").parent().removeClass("active")
            }
        }
    });
    e.fn[a.prototype.name] = function () {
        var h = arguments,
            b = h[0] ? h[0] : null;
        return this.each(function () {
            var f = e(this);
            if (a.prototype[b] &amp;&amp; f.data(a.prototype.name) &amp;&amp; "initialize" != b) f.data(a.prototype.name)[b].apply(f.data(a.prototype.name), Array.prototype.slice.call(h, 1));
            else if (!b || e.isPlainObject(b)) {
                var g = new a;
                a.prototype.initialize &amp;&amp; g.initialize.apply(g, e.merge([f], h));
                f.data(a.prototype.name, g)
            } else e.error("Method " + b + " does not exist on jQuery." + a.name)
        })
    }
})(jQuery);
</code></pre>
