Private Sub Worksheet_Change(ByVal Target As Range)
ActiveSheet.Shapes("valider").Visible = False
If Range("f5") <> "" And Range("f7") <> "" And Range("f9") <> "" And Range("f11") <> "" And Range("f13") <> "" And Range("f15") <> "" And Range("f17") <> "" Then
ActiveSheet.Shapes("valider").Visible = True
End If
End Sub