The traditional way of binding events to html elements is to set its onxxx attributes to your piece of js code. This poses a problem since only one event handler can be bound at the same time. This is currently not an issue with phpmyadmin itself, but user scripts (greasemonkey) or browser extensions may rely on binding additional events to elements. (see http://sourceforge.net/tracker/?func=detail&aid=2717117&group_id=23067&atid=377408 )
With this patch the jQuery event management is used to bind the one event that is pointed out in the issue. It installs a list of events that allows for expansion.
Your patch was merged in the repository, thanks.