Book Image

YUI 2.8: Learning the Library

Book Image

YUI 2.8: Learning the Library

Overview of this book

The YUI Library is a set of utilities and controls written in JavaScript for building Rich Internet Applications, across all major browsers and independently of any server technology. There's a lot of functionality baked into YUI, but getting to and understanding that functionality is not for the faint of heart. This book gives you a clear picture of YUI through a step-by-step approach, packed with lots of examples.YUI 2.8: Learning the Library covers all released (non-beta) components of the YUI 2.8 Library in detail with plenty of working examples, looking at the classes that make up each component and the properties and methods that can be used. It includes a series of practical examples to reinforce how each component should/can be used, showing its use to create complex, fully featured, cross-browser, Web 2.0 user interfaces. It has been updated from its first edition with the addition of several chapters covering several new controls and enriched with lots of experience of using them.You will learn to create a number of powerful JavaScript controls that can be used straightaway in your own applications. Besides giving you a deep understanding of the YUI library, this book will expand your knowledge of object-oriented JavaScript programming, as well as strengthen your understanding of the DOM and CSS. The final chapter describes many of the tools available to assist you the developer in debugging, maintaining, and ensuring the best quality in your code. In this new edition, all the examples have been updated to use the most recent coding practices and style and new ones added to cover newer components. Since the basic documentation for the library is available online, the focus is on providing insight and experience.The authors take the reader from beginner to advanced-level YUI usage and understanding.
Table of Contents (18 chapters)
YUI 2.8 Learning the Library
Credits
About the Authors
About the Reviewers
Preface

Common navigation structures


All but the most limited of websites must have a mechanism by which visitors can navigate around the pages of the site from the home page. In order to meet accessibility guidelines, several methods of navigation will usually be available, including at least a navigation menu and a site map.

There have been many different implementation styles that have been popular over the years. Before anyone really worried about accessibility or standards compliance, a common way of designing a navigation menu was to use a series of images that linked to other pages of the site, and there was also the popular frame-based navigation structure. While these methods saved the designer a lot of time, effort, and any real skill, they led to hugely increased page load times and a legacy of bad coding practice.

Thankfully, those days have long since passed, and with the continued development of CSS, it's now possible to design an effective navigation structure based on semantic HTML...