1 EXHIBIT F AGREEMENT AS TO JOINT FILING OF SCHEDULE 13D Each of the undersigned hereby affirms that it is individually eligible to use Schedule 13D and agrees that this Schedule 13D is filed on its behalf. Dated: March 8, 1999

   1
                                                                     EXHIBIT F

                  AGREEMENT AS TO JOINT FILING OF SCHEDULE 13D

Each of the undersigned hereby affirms that it is individually eligible to use
Schedule 13D and agrees that this Schedule 13D is filed on its behalf.

Dated:  March 8, 1999




                                  By:  /s/  Xxxxx X. Xxx         
                                     -------------------------------------------
                                     Name:  Xxxxx X. Xxx




                                  By:  /s/  Xxxx Xxxxxxx
                                     -------------------------------------------
                                     Name:  Xxxx Xxxxxxx