Thorough Review of OpenLayers Memory Management

[euzuro]

Need to sift through the code and make sure all object creation and deletions are in order, as well as event registerings and unregisterings.

Specifically, for every time a call is made to new, there should be a corresponding call to the object's destroy().

same goes for event.register() and event.unregister()

also we should consider adding a function removeFromMap() that would be the counter to setMap(), which would be the convenient place to register/unregister map events.

[openlayers]

patch added as per  http://www.nabble.com/Markers%27-events-memory-leak--tf3232599.html

stopObservingElement method added to Event object; stopObservingElement call added to Icon's destroy method;

[camerons]

To search for memory leaks, Drip is reported to be useful.  http://outofhanwell.com/ieleak/index.php?title=Main_Page

[openlayers]

sIEve is an extended version of Drip.
Can be found here:  http://home.wanadoo.nl/jsrosman/