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Employee Stock Benefit Plans (Schedule Of Weighted Average Assumptions Used In Calculating Share-Based Compensation Expense) (Details)
9 Months Ended
Jul. 01, 2011
Jul. 02, 2010
Employee Stock Benefit Plans    
Expected volatility 49.26% 56.19%
Risk free interest rate 1.11% 1.62%
Dividend yield 0.00% 0.00%
Expected option life (7 year contractual life options) 4.10 4.23