Exhibit 4
Joint Filing Agreement
Pursuant to Rule 13d-1(k)
The undersigned acknowledge and agree that the foregoing statement on
Schedule 13D, is filed on behalf of each of the undersigned and that all
subsequent amendments to this statement on Schedule 13D shall be filed on behalf
of each of the undersigned without the necessity of filing additional joint
filing agreements. The undersigned acknowledge that each shall be responsible
for the timely filing of such amendments, and for the completeness and accuracy
of the information concerning him or it contained therein, but shall not be
responsible for the completeness and accuracy of the information concerning the
others, except to the extent that he or it knows or has reason to believe that
such information is inaccurate.
Dated: February 17, 2009
/s/ Xxxxxxxxx San Xxxxxx
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Xxxxxxxxx San Xxxxxx
Attorney-in-fact for Xxxx Xxxxxxxxx
/s/ Xxxxxxxxx San Xxxxxx
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Xxxxxxxxx San Xxxxxx
Attorney-in-fact for Xxxxxx X. Xxxxxxxx,
in his capacity as trustee of the
Xxxxxxxxx GLG Trust
/s/ Xxxxxxxxx San Xxxxxx
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Xxxxxxxxx San Xxxxxx
Attorney-in-fact for Xxxxxx X. Xxxxxxxx
