Function ValeurCherchée(Chaine$, Plage As Range)
Dim T, L%, C%: Application.Volatile
T = Plage
For L = 1 To UBound(T)
For C = 1 To UBound(T, 2)
If T(L, C) = Chaine Then
ValeurCherchée = T(L + 1, C)
If ValeurCherchée = 0 Then ValeurCherchée = ""
Exit Function
End If
Next C
Next L
ValeurCherchée = ""
End Function