rem: widget.controller = FolderPaneController; 
add: widget.controllers.appendController(FolderPaneController); 
context: function SetupCommandUpdateHandlers(){	dump("SetupCommandUpdateHandlers\n");	var widget;		// folder pane	widget = GetFolderTree();	if ( widget )		widget.controller = FolderPaneController;		// thread pane	widget = GetThreadTree();	if ( widget )		widget.controller = ThreadPaneController;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/b2564031feee6f0c29dc93435a6e8db2d3badd88/widgetglue.js/buggy/mailnews/base/resources/content/widgetglue.js