EXHIBIT 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report included in this Form 10-K, into the Company's previously filed Form S-8 Registration Statement (File No. 333-32623) filed with the Securities and Exchange Commission on August 1, 1997 and Form S-8 Registration Statement (File No. 333-56187) filed with the Securities and Exchange Commission on June 5, 1998. ARTHUR ANDERSEN LLP Philadelphia, Pa. March 29, 1999