User Interface (YUI Library) which is a set of utilities and controls, written in JavaScript, for building interactive web applications using techniques such as DOM scripting luxury, DHTML, and AJAX. This book covers all released components whether utility, control, core file, or CSS tool. In addition to providing you understand 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. What you will learn from this book? Explore the YUI Library - utilities, controls, core files, and CSS toolsInstall library and get up and running with DOM manipulation itHandle and scriptingGet in Event Handling with Web pages using toolsWork YUICreate consistent with YUI CSS Containers - implementation, skinning, adding transitions, and tabsDebug, maintain, and update the application with controlExamples Logger included in the book: Create a Custom Calendar interface panel Autocomplete Dialog Split button tooltips Forms TreeView Control Browser History Manager with Calendar Simple animation animated Creating a Custom tab and add dynamic content Dragging and dropping the slider Implementing Logging Logger at work custom class Approach This book is a tutorial, a leading first reader through the basics of the YUI library before moving to a more complex example involving YUI controls and utilities. Who is this book written for? This book is for web developers comfortable with JavaScript and CSS, who want to use the YUI library to easily gather a rich, responsive web interfaces.