EXHIBIT 99.2

            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9

   Guidelines for Determining the Proper Identification Number to Give the
Payer. Social Security numbers have nine digits separated by two hyphens: i.e.
000-00-0000. Employer identification numbers have nine digits separated by only
one hyphen: i.e. 00-0000000. The table below will help determine the number to
give the payer.



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                                                 Give the
                                                 SOCIAL SECURITY
 For this type of account:                       number of--
 -----------------------------------------------------------------------------
                                              
  1. An individual's account                     The individual

  2. Two or more individuals (joint account)     The actual owner of the
                                                 account or, if combined
                                                 funds, any one of the
                                                 individuals(1)

  3. Husband and wife (joint account)            The actual owner of the
                                                 account or, if joint funds,
                                                 either person(1)

  4. Custodian account of a minor (Uniform       The minor(2)
     Gift to Minors Act)

  5. Adult and minor (joint account)             The adult or, if the minor is
                                                 the only contributor the
                                                 minor(1)

  6. Account in the name of guardian or          The ward, minor or
     committee for a designated ward, minor,     incompetent person(3)
     or incompetent person

  7. a The usual revocable savings trust         The grantor-trustee(1)
       account (grantor is also trustee)
    b So-called trust account that is not a      The actual owner(1)
      legal or valid trust under State law

  8. Sole proprietorship account                 The owner(4)
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- ---------------------------------------------------------------------------------

                                                Give the
                                                SOCIAL SECURITY
For this type of account:                       number of--
- ---------------------------------------------------------------------------------
                                             
 9. A valid trust, estate or pension trust      The legal entity (Do not
                                                furnish the identifying
                                                number of the personal
                                                representative or trustee
                                                unless the legal entity itself is
                                                not designated in the account
                                                title.)(5)

10. Corporate account                           The corporation

11. Religious, charitable, or educational       The organization
    organization account

12. Partnership account held in the name of     The partnership
    the business

13. Association, club, or other tax-exempt      The organization
    organization

14. A broker or registered nominee              The broker or nominee

15. Account with the Department of              The public entity
    Agriculture in the name of a public
    entity (such as a State or local
    government, school district, or prison)
    that receives agricultural program
    payments
- ---------------------------------------------------------------------------------

(1) List first and circle the name of the person whose number you furnish.
(2) Circle the minor's name and furnish the minor's Social Security number.
(3) Circle the ward's, minor's or incompetent person's name and furnish such
    person's Social Security number.
(4) Show the name of the Owner.
(5) List first and circle the name of the legal trust, estate or pension trust.

Note: If no name is circled when there is more than one name, the number will
      be considered to be that of the first name listed.



            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                    Page 2

Obtain a Number:

If you don't have a taxpayer identification number or you don't know your
number, obtain Form SS-5, Application for a Social Security Number Card, or
Form SS-4, Application for Employer Identification Number, at the local office
of the Social Security Administration or the Internal Revenue Service and apply
for a number.

Payees Exempt from Backup Withholding:

Payees specifically exempted from backup withholding on ALL payments include
the following:
  . A corporation.
  . A financial institution.
  . An organization exempt from tax under section 501(a), or an individual
    retirement plan.
  . The United States or any agency or instrumentality thereof.
  . A State, the District of Columbia, a possession of the United States, or
    any subdivision or instrumentality thereof.
  . A foreign government, a political subdivision of a foreign government, or
    any agency or instrumentality thereof.
  . An international organization or any agency of or instrumentality thereof.
  . A registered dealer in securities or commodities registered in the U.S. or
    a possession of the U.S.
  . A real estate investment trust.
  . A common trust fund operated by a bank under section 584(a).
  . An exempt charitable remainder trust, or a non-exempt trust described in
    section 4947(a)(1).
  . An entity registered at all times under the Investment Company Act of 1940.
  . A foreign central bank of issue.

Payments of dividends and patronage dividends not generally subject to backup
withholding include the following:
  . Payments to nonresident aliens subject to withholding under section 1441.
  . Payments to partnerships not engaged in a trade or business in the U.S. and
    which have at least one nonresident partner.
  . Payments of patronage dividends where the amount received is not paid in
    money.
  . Payments made by certain foreign nations.
  . Payments made to a nominee.

Payments of interest not generally subject to backup withholding include the
following:
  . Payments of interest on obligations issued by individuals. Note: You may be
    subject to backup withholding if this interest is $600 or more and is paid
    in the course of the payer's trade or business and you have not provided
    your correct taxpayer identification number to the payee.
  . Payments of tax-exempt interest (including exempt-interest dividends in
    section 852).
  . Payments described in section 6049(b)(5) to nonresident aliens.
  . Payments on tax-free covenant bonds under section 1451.
  . Payments made by certain foreign organizations.
  . Payments made to a nominee.

Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding.

FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER IDENTIFICATION NUMBER,
WRITE "EXEMPT" ON THE FACE OF THE FORM, AND RETURN IT TO THE PAYER. IF THE
PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO SIGN AND DATE
THE FORM.

Certain payments other than interest dividends, and patronage dividends, that
are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under sections 6041, 6041A(a),
6045, and 6050A.

Privacy Act Notice. Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payers
who must report the payments to the IRS. The IRS uses the numbers for
identification purposes. Payers must be given the numbers whether or not
recipients are required to file tax returns. Payers must generally withhold 31%
of taxable interest, dividends, and certain other payments to a payee who does
not furnish a taxpayer identification number to a payee. Certain penalties may
also apply.

Penalties

(1) Penalty for Failure to Furnish Taxpayer Identification Number. If you fail
to furnish your taxpayer identification number to a payer, you are subject to a
penalty of $50 for each such failure unless your failure is due to reasonable
cause and not to willful neglect.

(2) Failure to Report Certain Dividend and Interest Payments. If you fail to
include any portion of an includible payment for interest, dividends, or
patronage dividends in gross income, such failure will be treated as being due
to negligence and will be subject to a penalty of 5% on any portion of an
under-payment attributable to that failure unless there is clear and convincing
evidence to the contrary.

(3) Civil Penalty for False Information with Respect to Withholding. If you
make a false statement with no reasonable basis which results in no imposition
of backup withholding, you are subject to a penalty of $500.

(4) Criminal Penalty for Falsifying Information. Falsifying certifications or
affirmations may subject you to criminal penalties including fines and/or
imprisonment.

FOR ADDITIONAL INFORMATION CONTACT YOUR TAX CONSULTANT OR THE INTERNAL REVENUE
SERVICE.