rem: var controller = this._getControllerForCommand(command); if (!controller) return; 
add: var enabled = false; 
context:   updateCommand: function(command) {    var controller = this._getControllerForCommand(command);    if (!controller)      return;    try {      this.enableCommand(command, controller.isCommandEnabled(command));    }    catch (e) {    }  },
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/61d7d6c7d75bd471174fd6cb172820081f1722a6/globalOverlay.js/buggy/toolkit/content/globalOverlay.js