POWER OF ATTORNEY

I hereby constitute and appoint Daniel A. Baker and Curt A.
Reynders, and each of them, acting alone without any of the
others, my true and lawful attorneys-in-fact and agents, with
full power of substitution and resubstitution, for me and in my
name, place and stead, in any and all capacities, to prepare,
sign and file any and all Forms 3, 4, 5 and 144 and any successor
Forms (and any amendments or corrections to all such forms, and
any related documents or items) which they deem needed or
desirable with the Securities and Exchange Commission and any and
all stock exchanges, granting unto said attorneys-in-fact and
agents full power and authority to do and perform each and every
act and thing necessary or appropriate in connection with this
power and authority, hereby ratifying and confirming all that
said attorneys-in-fact and agents, or their substitute or
substitutes, may lawfully do or cause to be done by virtue
thereof.


By: /s/James D. Hartman

Printed Name: James D. Hartman

Date: 7/17/06