Income Tax Provision	6 Months Ended
	Jun. 30, 2011
Income Tax Provision
Income Tax Provision	5) Income Tax ProvisionFor the three and six months ended June 30, 2011, we had an effective income tax rate of 39.6% compared to 39.8% for the threeand six months ended June 30, 2010. The effective income tax rates for the periods presented were different from the statutoryUnited States federal income tax rate of 35% primarily due to state income taxes, non-deductible share-based compensationexpense, the qualified manufacturing activities deduction, research and development tax credit and non-deductible meals andentertainment costs.We made federal and state income tax payments, net of refunds, of $5.9 million in the six months ended June 30, 2011, comparedto $9.0 million in net payments for the same period of the prior year.