POWER OF ATTORNEY



		KNOW ALL BY THESE PRESENT, that the undersigned hereby constitutes and
appoints each of Robert R. Nielsen, Peter C. McGuire and William J.
Leatherberry,
signing singly, the undersigned's true and lawful attorney-in-fact to:


(1)	execute for and on behalf of the undersigned, all reports and filings
in accordance with the Securities Exchange Act of 1934 and the rules and
regulations promulgated thereunder;


(2)	do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and
execute any such filings in accordance with the Securities Exchange Act
of 1934 and the rules thereunder, complete and execute any amendment
or amendments thereto, and timely file such filings with the United States
Securities and Exchange Commission and any stock exchange or similar
authority; and


(3)	take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on
behalf of the undersigned pursuant to this Power of Attorney shall be in
such form and shall contain such terms and conditions as such attorney-
in-fact may approve in such attorney-in-fact's discretion.


	The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein
granted, as fully to all intents and purposes as the undersigned might or could
do if
personally present, with full power of substitution or revocation, hereby
ratifying and
confirming all that such attorney-in-fact, or such attorney-in-fact's substitute
or
substitutes, shall lawfully do or cause to be done by virtue of this power of
attorney and
the rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's
responsibilities to comply with the Securities Exchange Act of 1934.






This Power of Attorney shall remain in full force and effect until the
undersigned is
no longer required to execute such filings in accordance with the Securities
Exchange
Act of 1934 and the rules thereunder, unless earlier revoked by the undersigned
in a
signed writing delivered to the foregoing attorneys-in-fact.


	IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 9th day of June, 2006.




Signature

/s/ Michelle M. Lair