The older the browser, the fewer
event handlers are included??”unfortunately, this also means that if you want to reach the broadest Internet
audience, your event options are limited. In the broadest category, 4.0 and Later Browsers, only 16 different
tags can receive any sort of event handler.
Listing 12-1 shows the event-handler definitions for the 4.0 and Later Browsers category.
LISTING 12-1
The Event File for 4.0 and Later Browsers
onMouseDown=?????? onMouseOut=?????? onMouseOver=?????? onMouseUp=??????>