EXHIBIT 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by
reference in this S-3 registration statement of our report dated January 27,
2000 included in the Company's Form 10-K for the year ended December 31, 1999
and to all references to our Firm included in this registration statement.

                                        ARTHUR ANDERSEN LLP

Philadelphia, Pa.
  March 27, 2000