diff --git a/DMX-2.0/GestionCircuits.cs b/DMX-2.0/GestionCircuits.cs
index 17c5e8d..28e6dd7 100644
--- a/DMX-2.0/GestionCircuits.cs
+++ b/DMX-2.0/GestionCircuits.cs
@@ -1,26 +1,23 @@
 using System;
+using System.Collections.Generic;
 
 namespace DMX2
 {
 	public partial class GestionCircuits : Gtk.Dialog
 	{
 		Gtk.ListStore ls;
-		public GestionCircuits ()
+		public GestionCircuits (Gtk.Window parent) : base ("Circuits",parent,Gtk.DialogFlags.Modal)
 		{
+
 			this.Build ();
 			Gtk.TreeViewColumn nameCol = new Gtk.TreeViewColumn();
 			Gtk.CellRendererText nameCell = new Gtk.CellRendererText();
 			nameCol.Title = "Circuit";
 			nameCol.PackStart(nameCell,true);
-			nameCol.SetCellDataFunc(nameCell, new Gtk.TreeCellDataFunc(
-				new Gtk.TreeCellDataFunc(RenderCircuitName)
-			));
-
+			nameCol.SetCellDataFunc(nameCell, new Gtk.TreeCellDataFunc(	new Gtk.TreeCellDataFunc(RenderCircuitName) ));
 			nameCell.Editable =true;
 			nameCell.Edited	+= OnNameCellEdited;
-
 			this.listeCircuits.AppendColumn(nameCol);
-
 			ls = new Gtk.ListStore(typeof (Circuit));
 			this.listeCircuits.Model = ls;
 			UpdateListeCircuits();
@@ -36,39 +33,59 @@ namespace DMX2
 
 		}
 
-    private void RenderCircuitName(Gtk.TreeViewColumn tree_column, Gtk.CellRenderer cell, Gtk.TreeModel tree_model, Gtk.TreeIter iter) {
-		Circuit c =  tree_model.GetValue (iter, 0) as Circuit;
-		(cell as Gtk.CellRendererText).Text = c.Name;
-	}		
+	    private void RenderCircuitName(Gtk.TreeViewColumn tree_column, Gtk.CellRenderer cell, Gtk.TreeModel tree_model, Gtk.TreeIter iter) {
+			Circuit c =  tree_model.GetValue (iter, 0) as Circuit;
+			(cell as Gtk.CellRendererText).Text = c.Name;
+		}		
 
 		protected void UpdateListeCircuits ()
 		{
 			ls.Clear();
-			foreach(Circuit c in Conduite.Courante.Circuits)
+			foreach(var c in Conduite.Courante.Circuits)
 				ls.AppendValues(c);
 		}
 
 		protected void OnAddActionActivated (object sender, EventArgs e)
 		{
 
-			Gtk.Dialog dlg = new Gtk.Dialog("Test", this, Gtk.DialogFlags.DestroyWithParent);
-			Gtk.VBox vb = new Gtk.VBox();
-			var etry = new Gtk.Entry();
-			dlg.Add(vb);
-			vb.Add(etry);
-			vb.Add(dlg.AddButton("Close",Gtk.ResponseType.Close));
+			var dlg = new Gtk.Dialog ("Test", this, Gtk.DialogFlags.DestroyWithParent);
+			dlg.VBox.Add (new Gtk.Label ("Nombre de circuits :"));
+			var etry = new Gtk.Entry ("1");
+			etry.ActivatesDefault=true;
+			dlg.VBox.Add (etry);
+			dlg.AddButton ("Close", Gtk.ResponseType.Close ).GrabDefault();
+			dlg.VBox.ShowAll ();
 			dlg.Run ();
-			dlg.Destroy();
-
-			Conduite.Courante.NouveauCircuit();
-			UpdateListeCircuits();
-
+			int nb;
+			if (int.TryParse (etry.Text, out nb) && nb > 0) {
+				for (int i=0; i<nb; i++)
+					Conduite.Courante.NouveauCircuit ();
+				UpdateListeCircuits ();
+			} else {
+				var md = new Gtk.MessageDialog(this, Gtk.DialogFlags.Modal,Gtk.MessageType.Error, Gtk.ButtonsType.Ok,"Veuillez saisir un nombre positif");
+				md.Run(); md.Destroy();
+			}
+			dlg.Destroy ();
 		}
 		protected void OnRemoveActionActivated (object sender, EventArgs e)
 		{
-			throw new System.NotImplementedException ();
+			foreach(var c in GetSelection())
+				Conduite.Courante.SupprimeCircuit(c);
+
+			UpdateListeCircuits();
 		}		
 
+		protected List<Circuit> GetSelection()
+		{
+			Gtk.TreeIter iter; List<Circuit> selection = new List<Circuit>();
+			foreach(var row in listeCircuits.Selection.GetSelectedRows())
+			{
+				ls.GetIter (out iter, row);
+				selection.Add( ls.GetValue(iter,0) as Circuit);
+			} 
+			return selection;
+		}
+
 		protected void OnResp (object o, Gtk.ResponseArgs args)
 		{
 			Hide ();
diff --git a/DMX-2.0/MainWindow.cs b/DMX-2.0/MainWindow.cs
index 7e8f502..9e8b11f 100644
--- a/DMX-2.0/MainWindow.cs
+++ b/DMX-2.0/MainWindow.cs
@@ -23,12 +23,8 @@ namespace DMX2
 
 		protected void OnCircuitsActionActivated (object sender, EventArgs e)
 		{
-			GestionCircuits gc= new GestionCircuits();
-			gc.Parent=this;
+			GestionCircuits gc= new GestionCircuits(this);
 			gc.Run();
 		}
-	
-
-
 	}
 }
\ No newline at end of file
diff --git a/DMX-2.0/gtk-gui/DMX2.GestionCircuits.cs b/DMX-2.0/gtk-gui/DMX2.GestionCircuits.cs
index f19d280..d626191 100644
--- a/DMX-2.0/gtk-gui/DMX2.GestionCircuits.cs
+++ b/DMX-2.0/gtk-gui/DMX2.GestionCircuits.cs
@@ -28,6 +28,7 @@ namespace DMX2
 			this.Name = "DMX2.GestionCircuits";
 			this.Title = global::Mono.Unix.Catalog.GetString ("Circuits");
 			this.TypeHint = ((global::Gdk.WindowTypeHint)(1));
+			this.WindowPosition = ((global::Gtk.WindowPosition)(4));
 			this.DestroyWithParent = true;
 			this.Gravity = ((global::Gdk.Gravity)(10));
 			// Internal child DMX2.GestionCircuits.VBox
@@ -88,7 +89,8 @@ namespace DMX2
 			}
 			this.DefaultWidth = 400;
 			this.DefaultHeight = 456;
-			this.Show ();
+			this.buttonOk.HasDefault = true;
+			this.Hide ();
 			this.Response += new global::Gtk.ResponseHandler (this.OnResp);
 			this.addAction.Activated += new global::System.EventHandler (this.OnAddActionActivated);
 			this.removeAction.Activated += new global::System.EventHandler (this.OnRemoveActionActivated);
diff --git a/DMX-2.0/gtk-gui/gui.stetic b/DMX-2.0/gtk-gui/gui.stetic
index e07352e..7dfb032 100644
--- a/DMX-2.0/gtk-gui/gui.stetic
+++ b/DMX-2.0/gtk-gui/gui.stetic
@@ -327,8 +327,10 @@
       </action>
     </action-group>
     <property name="MemberName" />
+    <property name="Visible">False</property>
     <property name="Title" translatable="yes">Circuits</property>
     <property name="TypeHint">Dialog</property>
+    <property name="WindowPosition">CenterOnParent</property>
     <property name="DestroyWithParent">True</property>
     <property name="Gravity">Static</property>
     <property name="Buttons">1</property>
@@ -396,6 +398,7 @@
           <widget class="Gtk.Button" id="buttonOk">
             <property name="MemberName" />
             <property name="CanDefault">True</property>
+            <property name="HasDefault">True</property>
             <property name="CanFocus">True</property>
             <property name="UseStock">True</property>
             <property name="Type">StockItem</property>