I’m having the same issue. Tried to put Javascript in the Advanced Link Section, but it just refreshes the page when clicked. I noticed in Firebug it’s throwing an error saying “invalid character”.
I think what it’s doing is changing the quotes to curly tick marks. Should be ‘ but changes to ’ when you save it. Same thing happens to double quote marks. I put in ” but it changes to ” when you save it. Any way to fix that?