Hello, there seems to be something wrong with the way mootools adds events. Here is a testcase that crashes IE6 as soon as you leave or reload the page:
http://katzenmayer.de/testcase.html This testcase uses a CSS expression to reproduce the crash. I had several other crashes with adding events to form elements, but this was the only one I was able to isolate. If you use attachEvent instead of addEvent, the browser does NOT crash. So I think the bug must be within the addEvent code. Regards, Michael
