A family of Microsoft word processing software products for creating web, email, and print documents.
Such a field would be coded as:
{IF{PAGE}= 1 "Comments" "Comments (cont.)"}
Note: The field brace pairs (i.e. '{ }') for the above example are all created in the document itself, via Ctrl-F9 (Cmd-F9 on a Mac); you can't simply type them or copy & paste them from this message. The spaces represented in the field construction are all required.