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 Xxxx X. Xxxxx 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.
Dated: February 15, 2007
POTOMAC CAPITAL MANAGEMENT LLC
By: /s/ Xxxx X. Xxxxx
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Xxxx X. Xxxxx, Managing Member
POTOMAC CAPITAL MANAGEMENT INC.
By: /s/ Xxxx X. Xxxxx
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Xxxx X. Xxxxx, President
XXXX X. XXXXX
By: /s/ Xxxx X. Xxxxx
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Xxxx X. Xxxxx