JOINT FILING AGREEMENT ----------------------

                                 EXHIBIT A
                                 ---------

                           JOINT FILING AGREEMENT
                           ----------------------

The undersigned agree that the foregoing Statement on Schedule 13G is being
filed with the Commission on behalf of each of the undersigned pursuant to
Rule 13d-1(k).

Dated:  August 7, 2000

                               THE XXXXXXX X. XXXX LIVING TRUST
                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE XXXXXXX X. XXXX GRANTOR RETAINED
                               ANNUITY TRUST FOR XXXXX XXXX XXXXXX
                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE XXXXXXX X. XXXX GRANTOR RETAINED
                               ANNUITY TRUST FOR XXXXX XXXXXXXX XXXX

                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE XXXXXXX X. XXXX GRANTOR RETAINED
                               ANNUITY TRUST FOR XXXXXXXXX XXXXX XXXX

                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE XXXXXXX X. XXXX GRANTOR RETAINED
                               ANNUITY TRUST FOR XXXXXX XXXXXXX XXXXXX XXXX

                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE XXXXXXX X. XXXX GRANTOR RETAINED
                               ANNUITY TRUST FOR XXXXX XXXXXX XXXXXXX XXXX

                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee

                               THE 110 GROUP TRUST

                               By: /s/ Xxxxxxx X. Xxxxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxxxx
                                      ----------------------------------
                               Title:  Trustee

                               XXXXXXX X. XXXX

                               By: /s/ Xxxxxxx X. Xxxx
                                  --------------------------------------
                               Name:   Xxxxxxx X. Xxxx
                                      ----------------------------------
                               Title:  Trustee