Hi Wyskers,
To see how to do this and a wide range of other calculations in Word, check out my Microsoft Word Field Maths Tutorial, at:
http://lounge.windowssecrets.com/ind...owtopic=365442
or
http://www.gmayor.com/downloads.htm#Third_party
In particular, look at the latter parts of the item titled 'Testing Or Returning Text Strings With Logical Functions In Bookmarks'.