When an image map is replaced using innerHTML the new areas don't get events unless the innerHTML of the element that contains the map is cleared first (in the attached test case uncomment line 10) The test case works as expected in FF 3.5 and IE 8. Konqueror 4.2 has the exact same problem as WebKit.
Created attachment 31103 [details] Test case
*** This bug has been marked as a duplicate of 9504 ***