POWER OF ATTORNEY For Executing Forms 3,4, and 5

The undersigned hereby appoints each of Gretchen Dunn and Michael Carroll, signing singly, as true and lawful attomey-in-fact to:

(1) execute for and on behalf of the undersigned Forms 3, 4 and 5 and any

amendments to previously filed forms in accordance with Section 16(a) of the

Securities Exchange Act of 1934 and the rules thereunder;



(2) do and perform any and all acts for and on behalf of the undersigned which may

 be necessary or desirable to complete the execution of any such Form 3, 4, or 5

 and the timely filing of such form with the United States Securities and Exchange

 Commission and any other 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 his discretion.



The undersigned hereby grants to each such attorney-in-fact full power and authority to

 do and perform all and every act and thing whatsoever requisite, necessary and proper to be done

 in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes

 as such attorney-in-fact 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 his- 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 any of the

 undersigned's responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.



IN WITNESS WHEREOF the undersigned has caused this Power of Attorney to be

 executed as of this 21st day of December, 2005

/s/ GEORGE D. MARTIN