October 1999
Intermediate to advanced
480 pages
14h 47m
English
Content preview from JavaScript Application Cookbook
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Chapter 5. ImageMachine
| Application Features | JavaScript Techniques |
|---|---|
| • Dynamic Image Rollover Code Generator and Viewer | • JavaScripting Defensively |
| • Code Accommodates Lesser JavaScript Browsers | • The Power of Global Variables |
| • Flexible and Extensible HTML Attribute Settings | • Search and Replace in JavaScript 1.1 and 1.2 |
| • Supports Image Rollovers for MouseDown Events |
Everywhere you look in these chapters, the applications are designed with one person in mind: the user. You know, the ones we want to arrive like lemmings to our web sites, then bump up our traffic, buy our stuff, and download our software. This application breaks the mold. This one’s for you: the developer, webmaster, or designer.
Although DHTML has enhanced the capabilities of what can happen when we put our mouse-pointer arrows over some frame, widget, button or stylesheet, the image rollover is still one of the hottest and most widely used techniques on the Net.
Generating the JavaScript to enable the rollovers isn’t rocket
science, but it sure would make life easier to have an application
that spews nicely formatted image rollover code. That way, we coders
can just drop it in our pages. Enter ImageMachine. Figure 5.1 shows the opening look as you open
ch05/index.html.
Figure 5-1. ImageMachine ready for action
The app is fairly easy to use. You just have to make a few decisions about your ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.