JavaScript Design

Chapter 10. Event Handlers

CONTENTS>>

• The location, anchor, and history Objects

• Events and Event Handlers in HTML and JavaScript

To have an interactive web page using JavaScript, you need two things: a user action and a reaction by the browser. The most common reaction in an HTML page is clicking the mouse, and you have seen several examples of the mouse firing off a function using the HTML onClick event handler in example scripts in this book. Some scripts have even included onLoad event handlers that fire a script automatically when a page is loaded. So by now, you have some idea about event handlers from your experience with basic functions such as rollovers.

This chapter takes a closer look at the events and event handlers in HTML pages and ...