Image Map Directives (Apache: The Definitive Guide, 3rd Edition)

7.4. Image Map Directives

ImapBase [map|referer|URL]
Default: http://servername
Server config, virtual host, directory, .htaccess

map: The URL of the ImageMap itself.
referer: The URL of the referring document. If this is unknown, http://servername/ is used.
URL: The specified URL.


ImapMenu [none|formatted|semiformatted|unformatted]
Server config, virtual host, directory, .htaccess
Default: formatted

MENU FOR /BENCH.MAP
--------------------------------------
       things
       right.html

formatted: A formatted menu is the simplest menu. Comments in the ImageMap file are ignored. A level-one header is printed, then a horizontal rule, and then the links, each on a separate line. The menu has a consistent, plain look close to that of a directory listing.
semiformatted: In the semiformatted menu, comments are printed where they occur in the ImageMap file. Blank lines are turned into HTML breaks. No header or horizontal rule is printed, but otherwise the menu is the same as a formatted menu.
unformatted: Comments are printed; blank lines are ignored. Nothing is printed that does not appear in the ImageMap file. All breaks and headers must be included as comments in the ImageMap file. This gives you the most flexibility over the appearance of your menus, but requires you to treat your map files as HTML instead of plain text.

ImapDefault [error|nocontent|map|URL]
Default: nocontent
Server config, virtual host, directory, .htaccess

error: This makes Apache serve up a standard error message, which appears on the browser (depending on which one it is) as something like "Internal Server Error."
nocontent: Apache ignores the request.
map: Apache returns the message Document moved here.
URL: Apache returns the URL. If it is relative, then it will be relative to the ImageMap base. On this site we serve up the file default.html to deal with errors. It contains the message:

You're clicking in the wrong place