diff --git a/ci/ci0400.cpp b/ci/ci0400.cpp
index e1616743d..1d85b69c0 100755
--- a/ci/ci0400.cpp
+++ b/ci/ci0400.cpp
@@ -410,7 +410,7 @@ void TImmissioneDocumenti_mask::change_year(int newyear)
   immissione_documenti_app().change_year(newyear);
 }
 
-bool TImmissioneDocumenti_mask::is_date_void(int currpage, TDate& cdate) 
+bool TImmissioneDocumenti_mask::is_date_void(int currpage, const TDate& cdate) 
 { 
   return !(immissione_documenti_app().has_documents(currpage, cdate));
 }
diff --git a/ci/ci0400.h b/ci/ci0400.h
index 52a7b34d8..7a487bdd7 100755
--- a/ci/ci0400.h
+++ b/ci/ci0400.h
@@ -26,7 +26,7 @@ protected:
   
 public:
 // ereditato da TAlmanac_mask
-  virtual bool is_date_void(int currpage, TDate& cdate);
+  virtual bool is_date_void(int currpage, const TDate& cdate);
   virtual void change_year(int newyear); 
 
 public:
diff --git a/ci/ci0400a.uml b/ci/ci0400a.uml
index 4d9d2719e..51c0e95ca 100755
--- a/ci/ci0400a.uml
+++ b/ci/ci0400a.uml
@@ -43,26 +43,7 @@ BEGIN
   PICTURE BMP_LASTREC
 END
 
-BUTTON DLG_NULL 10 2
-BEGIN
-  PROMPT -1 -1 ""
-END
-
-BUTTON DLG_INFO 10 2
-BEGIN
-  PROMPT 7 1 ""
-END
-
-BUTTON DLG_HELP 10 2
-BEGIN
-  PROMPT 8 1 ""
-END
-
-BUTTON DLG_QUIT 10 2
-BEGIN
-  PROMPT 9 1 "~Fine"
-  MESSAGE EXIT,K_QUIT
-END
+#include <helpbar.h>
 
 ENDPAGE