If dat1 <> #12:00:00 AM# And dat1 < dat2 And dat1 < dat3 And dat1 < dat4 And dat1 < dat5 And dat1 < dat6 Then
'ici le test
'.......
'.......
ElseIf dat2 <> #12:00:00 AM# And dat2 < dat3 And dat2 < dat4 And dat2 < dat5 And dat2 < dat6 Then
'ici le test
'.......
'.......
End If