EXHIBIT 1
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AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G
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Each of the undersigned hereby affirms that it is individually eligible to use
Schedule 13G, and agrees that this Schedule 13G is filed on its behalf.
Date: January 23, 2001
XXXXXXX XXXXX XXXXXX INC.
By: /s/ Xxxxxx X. Xxxxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxxxx
Title: Assistant Secretary
SALOMON BROTHERS HOLDING COMPANY INC
By: /s/ Xxxxxx X. Xxxxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxxxx
Title: Assistant Secretary
XXXXXXX XXXXX XXXXXX HOLDINGS INC.
By: /s/ Xxxxxx X. Xxxxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxxxx
Title: Assistant Secretary
CITIGROUP INC.
By: /s/ Xxxxxx X. Xxxxxxx
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Name: Xxxxxx X. Xxxxxxx
Title: Assistant Secretary
