RFC 1980 (rfc1980) - Page 1 of 7
A Proposed Extension to HTML : Client-Side Image Maps
Alternative Format: Original Text Document
Network Working Group J. Seidman
Request for Comments: 1980 Spyglass, Inc.
Category: Informational August 1996
A Proposed Extension to HTML : Client-Side Image Maps
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
Abstract
The markup language known as "HTML/2.0" provides for image maps.
Image maps are document elements which allow clicking different areas
of an image to reference different network resources, as specified by
Uniform Identifier (URIs). The image map capability in HTML/2.0 is
limited in several ways, such as the restriction that it only works
with documents served via the "HTTP" protocol, and the lack of a
viable fallback for users of text-only browsers. This document
specifies an extension to the HTML language, referred to as "Client-
Side Image Maps," which resolves these limitations.
Table of Contents
1. Introduction ............................................... 1
1.1 Purpose ............................................... 1
1.2 Overall Operation ..................................... 2
2. Client-Side Image Map Extension ............................ 2
2.1 Syntax ................................................ 2
2.2 Required Changes to HTML/2.0 DTD ...................... 4
2.3 Backwards Compatibility ............................... 5
2.4 Examples .............................................. 5
3. Security Considerations .................................... 6
4. References ................................................. 6
5. Author's Address ........................................... 7
1. Introduction
1.1 Purpose
Image maps are an important feature of the point-and-click interface
which makes the World Wide Web so popular. The most common use of
image maps is to allow users to access different documents by
clicking different areas in an image.
Seidman Informational