Exhibit 99.2

                                  Exhibit 99.2


     Reference is made to that certain Agreement of Limited Partnership (the
"Agreement") of HBK Cayman L.P., a Cayman exempt limited partnership (the
"Partnership").  All capitalized terms which are not defined herein shall
have the meanings set forth in the Agreement.

     The undersigned, being the sole General Partner in the Partnership,
pursuant to the provisions of the Agreement, does hereby authorize Xxxxxx X.
Xxxxxxxxx, Xxxxxxx X. Xxxxx, Xxxxxxxx X. Xxxxxxxx, Xxxxxxx X. Xxxx, Xxxxxxx
X. Xxxxx, Xx. and H. Xxxxxxx Xxxxx to act for and on behalf of the
Partnership and to execute such documents, make such filings, seek such
approvals and take such actions as may be necessary or advisable in order to
carry out the purposes of the foregoing authorization and the intent
therefor.

     IN WITNESS WHEREOF, the undersigned has executed this Authorization
Certificate as of the 27th day of April, 1998.


                              General Partner

                              HBK FUND L.P.,
                              a Delaware limited partnership

                              By:  HBK Capital L.P.,
                                   a Delaware limited partnership, its
                                   sole general partner

                                   By:  HBK Partners I L.P.,
                                           a Delaware limited partnership,
                                           its sole general partner 

                                        By:  HBK Management LLC,
                                             a Delaware limited liability
                                             company, its sole general
                                             partner
                         

                                             By: /s/ Xxxxxx X. Xxxxxxxxx
                                                 Xxxxxx X. Xxxxxxxxx
                                                 President