[jQuery] [tooltip] - Hover over tooltip so you can add a link

[kenitech]

This is an easy way to hack Jorn's tooltip so you may hover over the
tooltip and click on a link:

http://www.artworknotavailable.com/2008/12/27/jorn-zaefferers-tooltip-hacks/

hack of:
http://bassistance.de/jquery-plugins/jquery-plugin-tooltip/