Common use of PARTICIPANT’S ACCEPTANCE Clause in Contracts

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 Stock Incentive Plan. PARTICIPANT: Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 2008 Stock Incentive Plan. PARTICIPANT: [PARTICIPANT] Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 2001 Stock Incentive Plan. PARTICIPANT: Signature: Name (please print): Address: I have read the terms and conditions of the foregoing option and choose NOT TO ACCEPT the option agreement. PARTICIPANT: Signature: Name (please print): Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 Stock Incentive Plan. PARTICIPANT: Signature Print Name Address:: __________________________

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 Amended and Restated 2003 Stock Incentive Plan. PARTICIPANT: Dated: Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 1998 Stock Incentive Plan. PARTICIPANT: Signature: Name (please print): Address: I have read the terms and conditions of the foregoing option and choose NOT TO ACCEPT the option agreement. PARTICIPANT: Signature: Name (please print): Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 1997 Stock Incentive Plan. PARTICIPANT: XXXXXX Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option granted ____________ and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 's 2007 Stock Incentive PlanPlan and Prospectus. PARTICIPANT: Signature Print Name: Address:

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 1998 Stock Incentive Plan. PARTICIPANT: Signature: Name: Xxxx Xxxxxx Address:: I have read the terms and conditions of the foregoing option and choose NOT TO ACCEPT the option agreement. PARTICIPANT: Signature: Name: Xxxx Xxxxxx Address: EXHIBIT D DEFINITION OF “CHANGE IN CONTROL”

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 1998 Stock Incentive Plan. PARTICIPANT: Signature: Name (please print): Address:: I have read the terms and conditions of the foregoing option and choose NOT TO ACCEPT the option agreement. PARTICIPANT: Signature: Name (please print): Address: EXHIBIT C DEFINITION OF “CHANGE IN CONTROL”

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 Amended and Restated 2004 Stock Incentive Plan. PARTICIPANT: Address:Signature: /s/ Xxxx X. Xxxx Printed Name: Xxxx X. Xxxx

PARTICIPANT’S ACCEPTANCE. The undersigned hereby accepts the foregoing option and agrees to the terms and conditions thereof. The undersigned hereby acknowledges receipt of a copy of the Company’s 2006 2005 Stock Incentive Plan. PARTICIPANT: Printed Name: Address: