S enior Acquisitions E ditor: Jeff Kellu m Development E ditor: A lexa Mu rphy Technical E ditor: Quentin Docter Production E ditor: Eric Charbonneau Copy E ditor: K im Wimpset t E ditorial Manager: Pete Gaug han Production Manager: Tim Tate Vice President and E xecutive Group P ublisher: R ichard Swadley Vice President and P ublisher: Neil E dde Media Project Manager 1: L au ra Moss- Hollister Media A ssociate Producer: Doug Kuhn Media Qualit y A ssu rance: Shaw n Patrick B ook Desig ners: Judy Fung and Bill Gibson Compositor: Craig Woods, Happenstance Type- O -R ama Proofreaders: Troy McM illan and Nancy B ell I ndexer: Ted L au x Project Coordinator, Cover: Katherine Crocker Cover Desig ner: Ryan Sneed Copyrig ht © 2012 by John Wiley & Sons, I nc., I ndianapolis, I ndiana P ublished simultaneously in Canada I SBN: 978 -1-118 -14862- 4 (pbk) ISBN: 978 -1-118 -28558 -9 (ebk) I SBN: 978 -1-118 -282 25- 0 (ebk) I SBN: 978 -1-118 -28391-2 (ebk) No par t of this publication may be reproduced, stored in a retrieval system or transmit ted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or other wise, except as permit ted under S ec- tions 107 or 108 of the 1976 United States Copyrig ht Act, without either the prior writ ten permission of the P ub - lisher, or authorization th roug h payment of the appropriate per- copy fee to the Copyrig ht Clearance C enter, 222 Rosewood Drive, Danvers, M A 01923, (978) 750 -840 0, fax (978) 646 -860 0. Requests to the P ublisher for per-