Exhibit B
JOINT FILING AGREEMENT
This Agreement is filed as an exhibit to Schedule 13G/A
being filed by Potomac Capital Management LLC, Potomac Capital
Management Inc., and ▇▇▇▇ ▇. ▇▇▇▇▇ in compliance with Rule 13d-1(k) of
the Securities and Exchange Commission, which requires an agreement in
writing indicating that the Schedule 13G/A 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/A and any
amendments thereto and for the completeness and accuracy of the
information concerning such persons contained therein.
Dated: September 9, 2008
POTOMAC CAPITAL MANAGEMENT LLC
By: /s/ ▇▇▇▇ ▇. ▇▇▇▇▇
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▇▇▇▇ ▇. ▇▇▇▇▇, Managing Member
POTOMAC CAPITAL MANAGEMENT INC.
By: /s/ ▇▇▇▇ ▇. ▇▇▇▇▇
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▇▇▇▇ ▇. ▇▇▇▇▇, President
▇▇▇▇ ▇. ▇▇▇▇▇
By: /s/ ▇▇▇▇ ▇. ▇▇▇▇▇
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▇▇▇▇ ▇. ▇▇▇▇▇