add:  if (!client.initialized) return null;  
context: function c_updatemenus(menus){    return this.menuManager.updateMenus(document, menus);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/deaf9bba4f161fb30157178488fe9ba402ea22d1/static.js/buggy/extensions/irc/xul/content/static.js