EXHIBIT (a)(1)(vi)

             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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For this type of account:                Give the NAME and SOCIAL SECURITY
                                          NUMBER of:

1. Individual                            The individual
2. Two or more individuals               The actual owner of the account or, if
    (joint account)                       combined funds, any one of the
                                          individuals(1)
3. Custodian account of a                The minor(2)
    minor (Uniform Gift to
    Minor Act)
4. a. The usual revocable savings        The grantor-trustee(1)
    trust (grantor is also trustee)
   b. So-called trust account that       The actual owner(1)
    is not a legal  or valid trust
    under State law
5. Sole  proprietorship or single-       The owner(3)
    owner LLC
6. A valid trust, estate,or pension      Legal entity(1)
    trust
7. Corporate or LLC electing             The corporation
    corporate status on Form 8832
8. Association, club, religious,         The organization
    charitable, educational
    or other tax-exempt organization
9. Partnership or multi-member LLC       The partnership
10.A  broker or registered nominee       The broker or  nominee
11.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

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(1)  List first and circle the name of the person whose  number you furnish.  If
     only one  person on a joint  account  has a social  security  number,  that
     person's number must be furnished.
(2)  Circle the minor's name and furnish the minor's social security number.
(3)  You must show your individual name, but you may also enter your business or
     `doing business as' name. You may use either your social security number or
     employer identification number (if you have one).
(4)  List  first and  circle  the name of the legal  trust,  estate,  or pension
     trust.   (Do  not  furnish   the   identifying   number  of  the   personal
     representative  or trustee unless the legal entity itself is not designated
     in the account title.)

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

OBTAINING A NUMBER

If you don't  have a  taxpayer  identification  number  or you  don't  know your
number,  obtain  Internal  Revenue  Service Form SS-5,  Application for a Social
Security  Number Card,  or Form SS-4,  Application  for Employer  Identification
Number,  at your  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  payments  made in
connection with the offer may include the following:

o  A corporation.
o  A financial institution.
o  An organization exempt from tax under section 501(a), or an individual
   retirement plan.
o  The United States or any agency or instrumentality thereof.
o  A state, the District of Columbia, a possession of the United States, or any
   subdivision or instrumentality thereof.
o  A foreign government, a political subdivision of a foreign government, or any
   agency or instrumentality thereof.
o  An international organization, or any agency or instrumentality thereof.
o  A registered dealer in securities or commodities registered in the U.S. or a
   possession of the U.S.
o  A real estate investment trust.
o  A common trust fund operated by a bank under section 584(a).
o  An entity  registered  at all times  during the tax year under the Investment
   Company Act of 1940.
o  A foreign central bank of issue.

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, SIGN AND DATE THE
FORM AND RETURN IT TO THE  PAYER.  IF YOU ARE A  NONRESIDENT  ALIEN OR A FOREIGN
ENTITY NOT SUBJECT TO BACKUP  WITHHOLDING,  FILE WITH PAYER A COMPLETED INTERNAL
REVENUE  FORM W-8BEN  (CERTIFICATE  OF FOREIGN  STATUS OF  BENEFICIAL  OWNER FOR
UNITED STATES TAX WITHHOLDING).

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.  The IRS may  also  provide  this  information  to the
Department of Justice for civil and criminal  litigation  and to cities,  states
and the  District of Columbia to carry out their tax laws.  Payers must be given
the numbers  whether or not recipients are required to file tax returns.  Payers
must generally  withhold 28% of taxable  interest,  dividend,  and certain other
payments to a payee who does not furnish a taxpayer  identification  number to a
payer. 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) 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.  --  Willfully  falsifying
certifications or affirmations may subject you 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.