Display a Footnote Window

A footnote window results when the user selects a hypertext phrase that is linked to a footnote tag (:fn.). The text between :fn. and :efn. is what appears in the footnote window. The following is an example of the tagging for the footnote text:

Input Example

:fn id=drive.
:p.The text you enclose in footnote tags appears in a
small window when the user selects a hypertext or hypergraphic
link to the footnote.  Notice that
the title of the window is the same as the hypertext
phrase "disk drives" that links to the window.
:efn.

The id= attribute identifies the footnote for linking purposes.

In the :link tag, use refid= to refer to the footnote identifier (in this case, "drive"), and reftype=fn to indicate that the link is to a footnote, and to specify the title of the footnote window. The following is an example of the tagging for a link to the footnote:

:p.Additional information about
:link refid=drive reftype=fn.disk drives:elink.
is available.

The following figure shows the resulting footnote window.

Footnote Window

The following are some important points to remember about footnotes:

A footnote can be placed anywhere in your source file, as long as it follows the first heading tag.
Footnotes cannot contain index entries.
Information in a footnote cannot be detected by a search.
A footnote cannot be in a window that has a split attribute in its heading or link definition.

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