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EXHIBIT 99.1
EXHIBIT B
JOINT FILING AGREEMENT
The undersigned acknowledge and agree that the foregoing statement on
Schedule 13G is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13G shall be filed on behalf
of each of the undersigned without the necessity of filing additional joint
acquisition statements. The undersigned acknowledge that each shall be
responsible for the timely filing of such amendments, and for the completeness
and accuracy of the information concerning him or it contained therein, but
shall not be responsible for the completeness and accuracy of the information
concerning the other, except to the extent that he or it knows or has reason to
believe that such information is accurate.
Dated this 8th day of Jannuary, 2001.
The TCW Group, Inc.
By: /s/ LINDA D. BARKER
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Linda D. Barker
Authorized Signatory
Robert Day
By: /s/ LINDA D. BARKER
-------------------------------
Linda D. Barker Under Power of
Attorney dated November 6, 2000
on file with Schedule 13G for
Retek, Inc. dated November 8,
2000.
B-1
