With repeated calls/instantiations in safari I've noticed a leak. The following lines in "_tabify:" were commented out to make it go away:

$(window).bind('unload', function() {self.lis.add(self.anchors).unbind('.tabs');

self.lis = self.anchors = self.panels = null;});

Possible way to reproduce is to dom script or produce an html structure dynamically, call tabs() on an element, delete and repeat.

Found and fixed another leak in safari using (with repeated calls) jquery.tablesorter.js+jquery.tablesorter.pager.js