When a user does something to an element of a document, that event can be detected and there may be code that responds to that event, ie code that handles the event.
If you are new to events, I suggest that you read the pages in this section in this order:
Here is a brief summary of how the different browsers intercept or capture an event:
- NN4 (Netscape Navigator version 4). The event dives down from the window to the event generating element.
- IE4 (Microsoft Internet Explorer version 4). The event bubbles up from the event generating element to the window.
- NS6 (Netscape Browser version 6). Whether an event bubbles or dives can be set.