Image Maps

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Image Maps (Clickable Images)

To create a clickable image you need:

an image (not necessarily a map!), GIF or JPEG
the data describing the hot spots in the image, and URLs for each hot spot
an HTML file that references the image, and references your map of coordinates

The result of clicking on a region of the map is that the browser jumps to another web page associated with that region.

server-side image maps
(gladstone/darkwing)

client-side image maps

requires server that understands imagemaps, (or your own CGI script); different servers behave differently.
hotspots published on server (in "NCSA format") as something.map. HTML file includes a link to something.map
advantages: highly flexible; server script can perform complex calculations, e.g. generating destination pages on the fly or processing complex shape specifications.

not supported by Netscape 1.x. Partially supported in NS 2.0.
hotspots appear in a <MAP> in an HTML document, usually the same one as the IMG tag
advantages: more efficient; provides better feedback for user.

server-side image maps (gladstone/darkwing)	client-side image maps
requires server that understands imagemaps, (or your own CGI script); different servers behave differently. hotspots published on server (in "NCSA format") as something`.map`. HTML file includes a link to something`.map` advantages: highly flexible; server script can perform complex calculations, e.g. generating destination pages on the fly or processing complex shape specifications.	not supported by Netscape 1.x. Partially supported in NS 2.0. hotspots appear in a <MAP> in an HTML document, usually the same one as the IMG tag advantages: more efficient; provides better feedback for user.

Next: client-side imagemaps