<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>3
<FILENAME>s11-9043i_exb.txt
<DESCRIPTION>EXHIBIT B
<TEXT>

Exhibit B

                             JOINT FILING AGREEMENT

     This Agreement is filed as an exhibit to Schedule 13G being filed by
Potomac Capital Management LLC, Potomac Capital Management Inc., and Paul J.
Solit in compliance with Rule 13d-1(k) of the Securities and Exchange
Commission, which requires an agreement in writing indicating that the Schedule
13G to which this Agreement is attached is filed on behalf of the below-named
entities, that they are each responsible for the timely filing of the Schedule
13G and any amendments thereto and for the completeness and accuracy of the
information concerning such persons contained therein.

     This Agreement may be executed in separate counterparts, each of which
shall be deemed an original, but all of which shall constitute one and the same
instrument.

Dated: February 27, 2009

                                         POTOMAC CAPITAL MANAGEMENT LLC
                                         By:   /s/ Paul J. Solit
                                               ------------------------------
                                               Paul J. Solit, Managing Member

                                         POTOMAC CAPITAL MANAGEMENT INC.
                                         By:   /s/ Paul J. Solit
                                               ------------------------------
                                               Paul J. Solit, President

                                         PAUL J. SOLIT
                                         By:   /s/ Paul J. Solit
                                               ------------------------------
                                               Paul J. Solit
</TEXT>
</DOCUMENT>
