EXHIBIT 99.1


                                  UNDERTAKINGS

     To be incorporated by reference into Form S-8 Registration Statements No.
2-82818, 2-86749 and 2-86760, and Form S-3 Registration Statement No. 33-55161.

     The undersigned registrant hereby undertakes:

     (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registration statement:

         (i) To include any prospectus required by section 10(a)(3) of the
Securities Act of 1933;

         (ii) To reflect in the prospectus any facts or events arising after the
effective date of the registration statement (or the most recent post-effective
amendment thereof) which, individually or in the aggregate, represents a
fundamental change in the information set forth in the registration statement;

         (iii)  To include any material information with respect to the plan of
distribution not previously disclosed in the registration statement or any
material change to such information in the registration statement;

     (2) That, for the purpose of determining any liability under the Securities
Act of 1933, each such post-effective amendment shall be deemed to be a new
registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial bona
fide offering thereof.

     (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

     The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     The undersigned registrant hereby undertakes:

     (1) To deliver or cause to be delivered with the prospectus to each
employee to whom the prospectus is sent or given a copy of the registrant's
annual report to stockholders for its last fiscal year, unless such employee
otherwise has received a copy of such report, in

                                   Ex. 99.1-1

 
which case the registrant shall state in the prospectus that it will promptly
furnish, without charge, a copy of such report on written request of the
employee.  If the last fiscal year of the registrant has ended within 120 days
prior to the use of the prospectus, the annual report of the registrant for the
preceding fiscal year may be so delivered, but within such 120 day period the
annual report for the last fiscal year will be furnished to each such employee.

     (2) To transmit or cause to be transmitted to all employees participating
in the plan who do not otherwise receive such material as stockholders of the
registrant, at the time and in the manner such material is sent to its
stockholders, copies of all reports, proxy statements and other communications
distributed to its stockholders generally.

     Where interests in a plan are registered herewith, the undersigned
registrant and plan hereby undertake to transmit or cause to be transmitted
promptly, without charge, to any participant in the plan who makes a written
request, a copy of the then latest annual report of the plan filed pursuant to
section 15(d) of the Securities Exchange Act of 1934 (Form 11-K).  If such
report is filed separately on Form 11-K, such form shall be delivered upon
written request.  If such report is filed as a part of the registrant's annual
report on Form 10-K, that entire report (excluding exhibits) shall be delivered
upon written request.  If such report is filed as a part of the registrant's
annual report to stockholders delivered pursuant to paragraph (1) or (2) of this
undertaking, additional delivery shall not be required.

     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable.  In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

                                   Ex. 99.1-2