diff --git a/hurricane/src/hviewer/CellWidget.cpp b/hurricane/src/hviewer/CellWidget.cpp
index 39c9808e..19b89295 100644
--- a/hurricane/src/hviewer/CellWidget.cpp
+++ b/hurricane/src/hviewer/CellWidget.cpp
@@ -1329,6 +1329,13 @@ namespace Hurricane {
   }
 
 
+  void  CellWidget::setLayerVisible ( const Name& layer, bool visible )
+  {
+    if ( !_palette ) return;
+    _palette->setItemVisible ( layer, visible ); 
+  }
+
+
   bool  CellWidget::isDrawable ( const Name& name )
   {
     PaletteItem* item = (_palette) ? _palette->find(name) : NULL;
diff --git a/hurricane/src/hviewer/PaletteWidget.cpp b/hurricane/src/hviewer/PaletteWidget.cpp
index ff5fae6a..97124f1d 100644
--- a/hurricane/src/hviewer/PaletteWidget.cpp
+++ b/hurricane/src/hviewer/PaletteWidget.cpp
@@ -377,6 +377,16 @@ namespace Hurricane {
   }
 
 
+  void  PaletteWidget::setItemVisible ( const Name& name, bool visible )
+  {
+    PaletteItem* item = find ( name );
+    if ( item ) {
+      item->setItemVisible ( visible );
+      emit paletteChanged();
+    }
+  }
+
+
   void  PaletteWidget::changeStyle ()
   {
     PaletteItems::iterator iitem = _layerItems.begin();
diff --git a/hurricane/src/hviewer/hurricane/viewer/CellWidget.h b/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
index d734d751..826be6e6 100644
--- a/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
+++ b/hurricane/src/hviewer/hurricane/viewer/CellWidget.h
@@ -146,6 +146,7 @@ namespace Hurricane {
       inline  void                    copyToPrinter              ( QPrinter* );
       inline  const float&            getScale                   () const;
       inline  const QPoint&           getMousePosition           () const;
+              void                    setLayerVisible            ( const Name& layer, bool visible );
               bool                    isDrawable                 ( const Name& );
               bool                    isDrawableLayer            ( const Name& );
               bool                    isDrawableExtension        ( const Name& );
diff --git a/hurricane/src/hviewer/hurricane/viewer/PaletteWidget.h b/hurricane/src/hviewer/hurricane/viewer/PaletteWidget.h
index f70a3afc..f7d89787 100644
--- a/hurricane/src/hviewer/hurricane/viewer/PaletteWidget.h
+++ b/hurricane/src/hviewer/hurricane/viewer/PaletteWidget.h
@@ -69,6 +69,7 @@ namespace Hurricane {
              void              showAll          ();
              void              hideAll          ();
              void              changeStyle      ();
+             void              setItemVisible   ( const Name& name, bool visible );
                              
     protected:               
              PaletteItems     _layerItems;