When attemtping to upgrade jQuery 1.5 and above, I get an issue where I cannot retain focus on a superfish menu element for more than a few seconds. Example is located here:

http://jsfiddle.net/gEFjk/

Tab functionality works, however when navigating into sub-menus using arrow keys (as per ARIA Specifications), the sub-menus disappear after a few seconds of inactivity, which would violate my WCAG 2.0 AA standards of creating non-time dependent keyboard functionality.

There seems to be issues with the .focus() function if I'm not mistaken. It could also be blamed on bad coding but I haven't been able to determine a cause.

The bug exists in Firefox 4 & Chrome 12.0.742.112. IE8 runs it fine, and I haven't tested in IE9 or other browsers not mentioned here.

Since this error comes up when doing a jQuery upgrade, I am perceiving this as a core bug and not a plugin bug, especially since I am using a custom implementation of Superfish.