rem: var outlinerBuilder = outliner.builder.QueryInterface(Components.interfaces.nsIXULOutlinerBuilder); return outlinerBuilder.getIndexOfResource(resource); 
add: return tree.builderView.getIndexOfResource(resource); 
context: function GetFolderIndex(outliner, resource){    var outlinerBuilder = outliner.builder.QueryInterface(Components.interfaces.nsIXULOutlinerBuilder);    return outlinerBuilder.getIndexOfResource(resource);}
meta: 5872	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5872/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/msgMail3PaneWindow.js/clean/mailnews/base/resources/content/msgMail3PaneWindow.js