Product Warranties (Tables)

3 Months Ended

Oct. 31, 2012

Schedule Of Changes In Product Warranty Reserves

Changes in our product warranty reserves are as follows:

	Three Months Ended October 31, 2012		Three Months Ended October 31, 2011
Beginning balance	$	73,280	$	66,054
Provision		24,453		17,072
Payments		(19,770)		(16,804)
Ending balance	$	77,963	$	66,322