I like your footnote notation - the superscript numbers and the return-up-arrow. Be aware, though, that if you're going to continue using it, your links will break on your journal page (and possibly on other people's friends pages). When I've linked footnotes, I've tried to insert dates in the links to prevent that; for full compatibility, links not buried beneath a cut tag may require the anchor tag be something like username_date_footnotenum.