Checks if only one match was found from a search query.
Generally used to display a message on the search results page.
Returns TRUE if only one match was found.
Returns FALSE if no matches or more than one match were found.
Displays text if only one match was found from a query:
<$if OneMatch$> <p><font face="arial" size="2"> Found <$TotalRows$> document matching the query.</p> <$endif$>