non-catalog part of menu refactoring from Mayhem commit 60e89e3f28dcb5cb5936f31940c786117ba5240a

src/Menu/Menu.coffee

@@ -2,6 +2,11 @@ Menu =
   init: ->
     return if g.VIEW is 'catalog' or !Conf['Menu']
 
+    @button = $.el 'a',
+      className: 'menu-button'
+      href:      'javascript:;'
+    $.extend @button, <%= html('<i class="fa fa-angle-down"></i>') %>
+
     @menu = new UI.Menu 'post'
     Post.callbacks.push
       name: 'Menu'
@@ -13,15 +18,10 @@ Menu =
       return
     $.add @nodes.info, Menu.makeButton()
 
-  makeButton: do ->
-    a = $.el 'a',
-      className: 'menu-button'
-      href:      'javascript:;'
-    $.extend a, <%= html('<i class="fa fa-angle-down"></i>') %>
-    ->
-      button = a.cloneNode true
-      $.on button, 'click', Menu.toggle
-      button
+  makeButton: ->
+    clone = Menu.button.cloneNode true
+    $.on clone, 'click', Menu.toggle
+    clone
 
   toggle: (e) ->
     post = Get.postFromNode @