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                                              EXHIBIT 2
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<S>                    <C>
                      IDENTIFICATION AND CLASSIFICATION OF SUBSIDIARY(S) WHICH ACQUIRED SECURITIES
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                      Smith Barney Fund Management LLC, is an investment advisor in accordance with
                                  Section 240.13d -1(b) (1)(ii)(E)


                    Each of the undersigned hereby affirms the identification and Item 3
                    classification of the subsidiary which acquired the securities filed
                    for in this Schedule 13G.



                    Date: February 10, 2004


                                          CITIGROUP GLOBAL MARKETS HOLDINGS INC.


                                          By: /s/ Joseph B. Wollard
                                              --------------------------------
                                              Name:  Joseph B. Wollard
                                              Title: Assistant Secretary


                                          CITIGROUP INC.


                                          By: /s/ Serena D. Moe
                                              --------------------------------
                                               Name:  Serena D. Moe
                                               Title: Assistant Secretary

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