--- a/QTfrontend/AbstractPage.h	Sun Sep 25 18:22:12 2011 +0200
+++ b/QTfrontend/AbstractPage.h	Sun Sep 25 18:24:01 2011 +0200
@@ -50,7 +50,8 @@
 {
     Q_OBJECT
 
- public:
+ signals:
+    void goBack();
 
  protected:
   AbstractPage(QWidget* parent = 0) {