var menu = new Class({
    _call: function (e) {
        switch (e.a) {
            case "open":
                this._openSub(e);
                break;
        }
    },
    initialize: function () {
        site.addEvent("menu", function (e) { this._call(e); } .bind(this));
    },
    _openSub: function (e) {
        if($(e.i))
            $(e.i).toggleClass("showSub");
    }
});