Lines arounds link on sliced image

I sliced an image and made some pieces rollovers and linked. when they are clicked on online a dotted line shows up around the sliced part. is there a way to stop this from happening?

Here is the page im having trouble with:
http://www.chambresalon.com

its the top image and the pieces are the pearl buttons with text at the top.

Thanks so much!
nancy



Referring URLs
http://www.chambresalon.com

ooops
"eans" should read "means"

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