Private Sub Dest_MouseUp1(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Single, ByVal Y As Single)
Dim i&, a&, n&
For a = Me.Dest.ListCount - 1 To 0 Step -1
For i = 0 To Me.Main.ListCount - 1
If Me.Main.List(i, 0) = Me.Dest.List(a, 1) Then n = n + 1
Next i
If n = 0 Then Me.Dest.Selected(a) = True
MsgBox " vous ne pouvez pas sélectionner ce sauveteur "
n = 0
Next a
End Sub