Without actually seeing the survey document, it is much more difficult for anyone to provide suitable code. Can you attach the document to a post with some representative data (delete anything sensitive)? You do this via the paperclip symbol on the 'Go Advanced' tab at the bottom of this screen.
Instead of sending users elsewhere to look at your code, kindly post it here. And, when posting code, please use the code tags - indicated by the # button on the posting menu.

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Cheers,
Paul Edstein
[Fmr MS MVP - Word]