diff --git a/build/js/ox.ui.js b/build/js/ox.ui.js
index fe57e401..663e6e5f 100644
--- a/build/js/ox.ui.js
+++ b/build/js/ox.ui.js
@@ -1948,6 +1948,23 @@ requires
 
     Ox.Menu = function(options, self) {
 
+        /*
+        options:
+        element         the element the menu is attached to
+        id              the menu id
+        items           array of menu items
+        mainmenu        the main menu this menu is part of, if any
+        offset          offset of the menu, in px
+        parent          the supermenu, if any
+        selected        the position of the selected item
+        side            "bottom" or "right"
+        size            "large", "medium" or "small"
+        events
+        change_groupId  {id, value}     checked item of a group has changed
+        click_itemId                    item not belonging to a group was clicked
+        hide_menuId                     menu was hidden
+        */
+
         var self = self || {},
             that = new Ox.Element({}, self)
                 .defaults({