You could easily do it with Macros. Of course this would mean a little bit of VBA programming knowledge, which might sound like alot of agro just to do update one document, but once you have learnt VBA (which is pretty simple) it will come in very usefull if you are doing alot of OFFICE work.
A good place to start learning will be here -> http://wordprocessing.about.com/od/w...macrointro.htm
Someone might be able to give you a specific bit of code to do what you need, but it is worth learning yourself
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