Stock-Based Compensation (Schedule Of Fair Value Valuation Assumptions) (Details) (USD $)	12 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 31, 2009
Stock Options [Member]
Expected dividend yield	0.00%	0.00%	0.00%
Risk-free interest rate, minimum	0.10%	0.30%	0.40%
Risk-free interest rate, maximum	1.60%	2.00%	1.90%
Expected volatility, minimum	50.30%	49.30%	54.80%
Expected volatility, maximum	61.90%	53.30%	65.30%
Expected term (in years)	4.0	4.0	4.0
Employee Stock Purchase Plan [Member]
Expected dividend yield	0.00%	0.00%	0.00%
Risk-free interest rate	0.60%	0.60%	0.80%
Expected volatility	65.50%	67.80%	76.40%
Expected term (in years)	1.1	1.5	1.2