Sub Afficher2()
Application.ScreenUpdating = False
Range("D:AH").EntireColumn.Hidden = False
End Sub
Sub Masquer2()
Application.ScreenUpdating = False
Dim cel As Range
For Each cel In Range("D3:AH3")
If cel = "Samedi" Or cel = "Dimanche" Then cel.EntireColumn.Hidden = True
Next
End Sub