Index: /trunk/src/org/openstreetmap/josm/gui/NotificationManager.java
===================================================================
--- /trunk/src/org/openstreetmap/josm/gui/NotificationManager.java	(revision 17900)
+++ /trunk/src/org/openstreetmap/josm/gui/NotificationManager.java	(revision 17901)
@@ -212,4 +212,7 @@
 
             ShowNoteHelpAction(Notification note) {
+                super(tr("Help"));
+                putValue(SHORT_DESCRIPTION, tr("Show help information"));
+                new ImageProvider("help").getResource().attachImageIcon(this, true);
                 this.note = note;
             }
@@ -248,9 +251,6 @@
             JToolBar tbHelp = null;
             if (note.getHelpTopic() != null) {
-                JButton btnHelp = new JButton(tr("Help"));
-                btnHelp.setIcon(ImageProvider.get("help"));
-                btnHelp.setToolTipText(tr("Show help information"));
+                JButton btnHelp = new JButton(new ShowNoteHelpAction(note));
                 HelpUtil.setHelpContext(btnHelp, note.getHelpTopic());
-                btnHelp.addActionListener(new ShowNoteHelpAction(note));
                 btnHelp.setOpaque(false);
                 tbHelp = new JToolBar();