LIMITED POWER OF ATTORNEY

David L. Cohen (acting individually and on behalf of those entities for which he
exercises control, collectively referred to herein as "Grantor"), having his and
their principal place of business at c/o Iridian Asset  Management LLC, 276 Post
Road West, Westport,  CT 06880, is an owner of Iridian Asset Management LLC (the
"Adviser"),  an investment  adviser registered with the United States Securities
and Exchange Commission (the "SEC").

Grantor appoints each of Jeffrey M. Elliott,  Executive Vice President and Chief
Operating Officer,  and Lane S. Bucklan,  General Counsel (each, the "Agent") of
the Adviser as his true and lawful  attorney-in-fact  for the following specific
and limited purposes only:

To exercise or perform any act, power, duty, right or obligation whatsoever that
Grantor now has, or may subsequently  acquire the legal right, power or capacity
to  exercise  or  perform,  in  connection  with,  arising  from or  relating to
Adviser's  obligation  to make filings with the SEC under  Sections 13 and 16 of
the Securities  Exchange Act of 1934, as amended,  and the rules and regulations
promulgated thereunder, including, but not limited to, the authority to prepare,
sign,  and file all such  forms,  schedules,  or other  documents  which  may be
necessary to complete such filings.

Grantor gives and grants each Agent  individually full power and authority to do
and perform all and every act and thing  whatsoever  necessary to be done in and
about the  specific  and  limited  premises  set forth  herein as fully,  to all
intents and purposes, as might or could be done if personally present, with full
power of substitution  and revocation,  hereby ratifying and confirming all that
said Agent shall lawfully do or cause to be done by virtue hereof.


Dated: October 7, 2009



                              By:  /s/   David L. Cohen
                                    ----------------------------------
                                        David L. Cohen


Appointment accepted by:


/s/ Jeffrey M. Elliott
-------------------------------------
Jeffrey M. Elliott
Executive Vice President and Chief Operating Officer


/s/ Lane S. Bucklan
----------------------------
Lane S. Bucklan
General Counsel



                           LIMITED POWER OF ATTORNEY

Harold J. Levy (acting individually and on behalf of those entities for which he
exercises control, collectively referred to herein as "Grantor"), having his and
their principal place of business at c/o Iridian Asset  Management LLC, 276 Post
Road West, Westport,  CT 06880, is an owner of Iridian Asset Management LLC (the
"Adviser"),  an investment  adviser registered with the United States Securities
and Exchange Commission (the "SEC").

Grantor appoints each of Jeffrey M. Elliott,  Executive Vice President and Chief
Operating Officer,  and Lane S. Bucklan,  General Counsel (each, the "Agent") of
the Adviser as his true and lawful  attorney-in-fact  for the following specific
and limited purposes only:

To exercise or perform any act, power, duty, right or obligation whatsoever that
Grantor now has, or may subsequently  acquire the legal right, power or capacity
to  exercise  or  perform,  in  connection  with,  arising  from or  relating to
Adviser's  obligation  to make filings with the SEC under  Sections 13 and 16 of
the Securities  Exchange Act of 1934, as amended,  and the rules and regulations
promulgated thereunder, including, but not limited to, the authority to prepare,
sign,  and file all such  forms,  schedules,  or other  documents  which  may be
necessary to complete such filings.

Grantor gives and grants each Agent  individually full power and authority to do
and perform all and every act and thing  whatsoever  necessary to be done in and
about the  specific  and  limited  premises  set forth  herein as fully,  to all
intents and purposes, as might or could be done if personally present, with full
power of substitution  and revocation,  hereby ratifying and confirming all that
said Agent shall lawfully do or cause to be done by virtue hereof.


Dated: October 7, 2009



                              By:  /s/   Harold J. Levy
                                    ----------------------------------
                                        Harold J. Levy


Appointment accepted by:


/s/ Jeffrey M. Elliott
-------------------------------------
Jeffrey M. Elliott
Executive Vice President and Chief Operating Officer


/s/ Lane S. Bucklan
----------------------------
Lane S. Bucklan
General Counsel