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
   April 10, 2000