add:  if (!client.initialized) return null;  
context: function c_updatemenus(menus){    return this.menuManager.updateMenus(document, menus);}
meta: 3298	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3298/0a8ad426d2a009478b6f868a1ca1555fb90fe336/static.js/clean/xul/content/static.js