JOINT FILING AGREEMENT
EXHIBIT 2
The undersigned hereby agree to the joint filing of Amendment No. 13 to the Schedule 13D to which this Agreement is attached.
Dated: April 26, 2011
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DISCOVERY GROUP I, LLC
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for itself and as general partner of
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DISCOVERY EQUITY PARTNERS, L.P.
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By
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Xxxxxxx X. Xxxxxx*
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Xxxxxxx X. Xxxxxx
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Managing Member
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| Xxxxxx X. Xxxxxxxx* | |||
| Xxxxxx X. Xxxxxxxx | |||
| Xxxxxxx X. Xxxxxx* | |||
| Xxxxxxx X. Xxxxxx | |||
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*By:
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/s/ Xxxx Xxxxxxx
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Xxxx Xxxxxxx
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Attorney-in-Fact for Xxxxxx X. Xxxxxxxx
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Attorney-in-Fact for Xxxxxxx X. Xxxxxx
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