// $Id$
// Category: digits+hits
//
-// Mandatory (TGeant4) class providing method for creating
+// Author: I. Hrivnacova
+//
+// Class AliSDConstruction
+// -----------------------
+/// Mandatory (TGeant4) class providing method for creating
// sensitive detectors.
// It provides also methods for switching between lego
// sensitive detectors and the standard ones.