rem: return commonDialogService.Confirm(window, titleMsg, dialogMsg); 
add: return commonDialogService.Confirm(window, titleMsg, dialogMsg); 
context: function ConfirmUnsubscribe(folder){    if (!gMessengerBundle)        gMessengerBundle = document.getElementById("bundle_messenger");    var titleMsg = gMessengerBundle.getString("confirmUnsubscribeTitle");    var dialogMsg = gMessengerBundle.getFormattedString("confirmUnsubscribeText",                                        [folder.name], 1);    var commonDialogService = nsJSComponentManager.getService("@mozilla.org/appshell/commonDialogs;1",                                                                    "nsICommonDialogs");    return commonDialogService.Confirm(window, titleMsg, dialogMsg);    }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/0b2dd2b2d2fd037df917e07645fa019a963332a5/mailWindowOverlay.js/buggy/mailnews/base/resources/content/mailWindowOverlay.js