HTML and CSS Reference
In-Depth Information
APPENDIX B. A VERY SHORT
INTRODUCTION TO
JAVASCRIPT
There was a time when the Web was all about markup.
Pages held text and HTML tags, and not much more.
Really advanced websites used server scripts that could
tweak the HTML markup before it made its way to the
browser, but the code stopped there.
Crack open a web page today and you're likely to find
buckets of JavaScript code, powering everything from vi-
tal features to minor frills. Self-completing text boxes,
pop-up menus, picture slideshows, and webmail are just
a few examples of the many ways crafty developers put
JavaScript to work. In fact, it's nearly impossible to ima-
