Aggiunti i pulsanti di Stock gtk

diff --git a/DrPrintGui/Input.py b/DrPrintGui/Input.py
index fca460c..f750f48 100644
--- a/DrPrintGui/Input.py
+++ b/DrPrintGui/Input.py
@@ -99,8 +99,8 @@ class SelectFileWidget(gtk.HBox):
             title = "Seleziona file da stampare",
             parent = None,
             action=gtk.FILE_CHOOSER_ACTION_OPEN,
-            buttons=("Cancel", 1, "OK", 2) )
-        if chooser.run() == 2:
+            buttons=(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_OPEN, gtk.RESPONSE_OK) )
+        if chooser.run() == gtk.RESPONSE_OK:
             self.Filename.set_text(chooser.get_filename())

         chooser.destroy()
diff --git a/DrPrintGui/Input.pyc b/DrPrintGui/Input.pyc
index c01e150..d4fff15 100644
Binary files a/DrPrintGui/Input.pyc and b/DrPrintGui/Input.pyc differ
diff --git a/DrPrintGui/MainWin.py b/DrPrintGui/MainWin.py
index 593d99f..93d99a5 100644
--- a/DrPrintGui/MainWin.py
+++ b/DrPrintGui/MainWin.py
@@ -97,6 +97,8 @@ class MainWin(gtk.Window):
  a questa interfaccia, quindi non faccio nulla")

     def auth_failed_callback(self, obj):
+        """Questa funzione gestisce l'eventualità che utente
+        e password siano errati"""
         self.debug("Autenticazione fallita")
         dialog = ErrorDialog("Autenticazione Fallita",
                              "<b>Autenticazione Fallita</b>\nLo username e la password forniti non sono\n\
diff --git a/DrPrintGui/MainWin.pyc b/DrPrintGui/MainWin.pyc
index 55cfba8..1c1c801 100644
Binary files a/DrPrintGui/MainWin.pyc and b/DrPrintGui/MainWin.pyc differ