- modify the events that are used in MSIE to look more like the standard events.
- have "this" point to the element that has the event listener.
- allow for cleaning up to avoid memory leaks for individual DOM elements (and optionally their children). Ctrl does register a global cleanup function on document unload, but it also surfaces a removeListeners() method for cases when there are multiple nodes attached/detached within the web page's lifetime, and memory leaks want to be contained as nodes are detached before the page is unloaded. (Even does cleanup for Mozilla because of bug: https://bugzilla.mozilla.org/show_bug.cgi?id=241518
The changes are in CVS but not visible on the web site yet. Still need to round out a little more testing.