:fn. (Footnote)

Identifies a pop-up window.

Syntax

┌───────────────┬───────────────┬───────────────┬───────────────┐
│Tag            │Element        │Attributes     │End            │
├───────────────┼───────────────┼───────────────┼───────────────┤
│:fn.           │Pop-up         │id=            │:efn.          │
└───────────────┴───────────────┴───────────────┴───────────────┘

Attributes

id=

Specifies the ID of the footnote. It is used in conjunction with the link tag (see :link. (Link)).

Description

The footnote tag encloses information that will be displayed in a pop-up window when the user selects a hypertext link to the information. Footnotes can appear within paragraphs, lists, highlighted phrases, and artwork.

Conditions

• Index entries are not valid within a footnote. 
  The id= attribute is required.
  
  One footnote must end before another begins.
  
  A footnote cannot be linked from a child window.
  
  Information in a footnote cannot be returned as the result of a search.

  Example

  The following shows how to enter the footnote ID (here "ddrive") and provide a link to the footnote.

  :fn id=ddrive.The information you place here appears in the pop-up window as a
  footnote.  For example, you could enter additional information
  about the disk drive in a footnote.
  :efn.
  

  To provide the link that allows the user to view the footnote pop-up, you could enter:

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

  Output

  When the information is displayed, disk drives is highlighted and clicking on disk drives pops up the footnote window.

  ---

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