Understanding the Event Model

Understanding the Event Model
An event is a notification that occurs in response to an action, such as a change in state, or as a result of the user clicking the mouse or pressing a key while viewing the document. An event handler is code, typically a function or routine written in a scripting language, that receives control when the corresponding event occurs. The following topics describe events and event handlers and explain how to use them in your documents.

The Life Cycle of an Event
Attaching an Event Handler
Attaching with Event Properties
Handling Custom Events or Events with Parameters
More About Event Bubbling
Returning Values and Canceling Default Actions
Event Handler Scoping
Event Object
Keyboard Events
Mouse Events
Mouse Clicks
Moving Between Elements
Focus and Selection Events
Load and Readystate Events
Other Events