<PAGE>
EXHIBIT 2
---------
DISCLAIMER OF BENEFICIAL OWNERSHIP
----------------------------------
Each of the undersigned disclaims beneficial ownership of the securities
referred to in the Schedule 13G to which this exhibit is attached, and the
filing of this Schedule 13G shall not be construed as an admission that any
of the undersigned is, for the purpose of Section 13(d) or 13(g) of the
Securities Exchange Act of 1934, as amended, the beneficial owner of any
securities covered by this Schedule 13G.
Date: June 7, 2000
SOLOMON SMITH BARNEY HOLDINGS INC.
By: /s/ Howard M. Darmstadter
--------------------------------------------
Name: Howard M. Darmstadter
Title: Assistant Secretary
CITIGROUP INC.
By: /s/ Joseph B. Wollard
--------------------------------------------
Name: Joseph B. Wollard
Title: Assistant Secretary
