#elem1
#elem2

Explanation

#elem1 has "click," "mousemove," and "mousedown" event handlers wired to it, which simply log a message indicating what event is currently dispatching.

#elem2 also has "click," "mousemove," and "mousedown" event hanlders wire to it, but they do nothing more than forward their events to #elem1, so any of the aforementioned events directed at #elem2 will appear to have been directed at #elem1 instead.

Things to try: