EXHIBIT (a)(6)

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

    GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER FOR THE PAYEE
(YOU) 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.


                                                         
                                                               GIVE THE
                                                               SOCIAL SECURITY
                                                               NUMBER OF--
FOR THIS TYPE OF ACCOUNT
1.   An individual's account                                   The individual
2.   Two or more individuals (joint account)                   The actual owner of the account or,
                                                               if combined funds, the first
                                                               individual on the account(1)
3.   Custodian account of a minor (Uniform Gift to Minors      The minor(2)
     Act)
4.   a. The usual revocable savings trust (grantor is also     The grantor-trustee(1)
        trustee)
     b. So-called trust account that is not a legal or valid   The actual owner(1)
     trust under State law
5.   Sole proprietorship account                               The owner(3)
6.   A valid trust, estate, or pension trust                   The legal entity (4)
7.   Corporate account                                         The corporation
8.   Partnership account held in the name of the business      The partnership
9.   Association, club, or other tax-exempt organization       The organization
     account
10.  A broker or registered nominee                            The broker or nominee


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.

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(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)   Show the name of the owner. The name of the business or the "doing
     business as" name may also be entered. Either the social security number or
    the employer identification number may be used.

(4)   List first and circle the name of the legal trust, estate, or pension
     trust. (Do not furnish the taxpayer identification number of the personal
    representative or trustee unless the legal entity itself is not designated
    in the account title.)

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

OBTAINING A NUMBER

If you do not have a taxpayer identification number ("TIN") 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. Copies of Form SS-4 can be obtained on the Internet at
www.irs.treas.gov (click forms and publications).

PAYEES EXEMPT FROM BACKUP WITHHOLDING

Payees specifically exempted from backup withholding on all dividend and
interest payments and on broker transactions include the following:

- - A corporation.

- - A financial institution.

- - An organization exempt from tax under section 501(a), or an individual
  retirement plan, or a custodial account under Section 403(b)(7).

- - 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.

- - An international organization or any agency or instrumentality thereof.

- - A foreign government, a political subdivision of a foreign government, or any
  agency or instrumentality thereof.

- - A dealer in securities or commodities registered in the United States or a
  possession of the United States.

- - A real estate investment trust.

- - A common trust fund operated by a bank under Section 584(a).

- - An entity registered at all times during the tax year under the Investment
  Company Act of 1940.

- - A foreign central bank of issue.

- - An exempt charitable remainder trust, or a non-exempt trust described in
  section 6967(a)(1).

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 United
  States and which have at least one nonresident partner.

- - Payments of patronage dividends where the amounts received are not paid in
  money.

- - Payments made by certain foreign organizations.

- - Payments made to a nominee.

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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 payer.

- - Payments of tax-exempt interest (including exempt-interest dividends under
  Section 852).

- - Payments described in section 6049(b)(5) to non-resident 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 the substitute Form W-9 to avoid
possible erroneous backup witholding. Complete the substitute Form W-9 as
follows:

ENTER YOUR TAXPAYER IDENTIFICATION NUMBER, WRITE "EXEMPT" ACROSS THE FACE OF THE
FORM, AND RETURN THE FORM TO THE PAYER.

Certain payments, other than payments of interest, dividends, and patronage
dividends, that are subject to information reporting are also not subject to
backup withholding. For details, see sections 6041, 6041A(a), 6042, 6044, 6045,
6050A and 6050N and the regulations thereunder.

PRIVACY ACT NOTICE.--Section 6109 requires you to provide your correct taxpayer
identification number to payers, who must report the payments to the IRS. The
IRS uses the number for identification purposes and also may provide this
information to various government agencies for tax enforcement or litigation
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, dividend, and certain other payments to a payee who does not furnish a
taxpayer identification number to a payer. Certain penalties also may apply.

PENALTIES

(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER--If you fail
    to furnish your correct 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) 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.

(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION--If you willfully falsify
    certifications or affirmations you may be subject to criminal penalties
    including fines and/or imprisonment.

(4) MISUSE OF TAXPAYER IDENTIFICATION NUMBERS--If the payer discloses or uses
    taxpayer identification numbers in violation of Federal law, the payer may
    be subject to civil and criminal penalties.

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

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