JOINT FILING AGREEMENT

                                                                       EXHIBIT 1

                             JOINT FILING AGREEMENT

            The undersigned hereby agree to the joint filing of the Schedule 13G
to which this Agreement is attached.

                  Dated: February 13, 2003


                                WAM Acquisition GP, Inc.
                                    for itself and as general partner of
                                    LIBERTY XXXXXX ASSET MANAGEMENT, L.P.



                                By:  /s/ Xxxxx X. Xxxxx
                                     ----------------------------------------
                                         Xxxxx X. Xxxxx
                                         Senior Vice President and Secretary