Advanced Web Facilities

Dynamic Web pages

One of the major differences between a Web site and a printed book is that the Web supports interaction with the reader. This ranges from trivial effects, e.g. an icon which changes colour when you move the mouse over it, to substantial tools, such as a search facility.

However, almost all forms of interactivity require some sort of programming, or at least knowledge of how to interface with an existing program. There are three main ways of providing interactivity on a Web page:

• Forms & CGI scripts
• Javascript
• Java

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