Help with javascript project

[Helbrax]

Hi. I currently run a "pet project" at http://www.jcritters.com.
Basically what I am looking for is anyone who is proficient in
javascript to go over the code(jcritter.js) and point out any areas of
improvement or any errors or best practices that need to be
addressed.

I am also looking for any feature suggestions that are within the
scope of the project.

[Helbrax]

Hmm...It looks like the biggest issue with attachEvent is that it
doesn't implicitly remove it's event when the window unloads. This
only seems to be a problem with IE6(and possibly lower). IE7 seems to
remove the memory(at least in my tests). Calling object.Destroy() in
an onunload event in IE6 seems to clear out the memory just fine.