'null' is not null or an object

I'm getting the following error message in IE.

As far as I see, the page is working fine, but it bothers me a bit. This thing might not work at all on a certain platform. Error points at the following location:

Line: 664
Char: 2

And ...

	$("kwicks").addEvent("mouseleave", function(event) {
		var o = {};
		kwicks.each(function(kwick, i) {
			o[i] = {height: [kwick.getStyle("height").toInt(), szNormal]}
		});
		fx.start(o);
	})

Code (markup):

The first line in the code above is Line 664. What is IE complaining about? How can I fix this?

 

Shouldn't it be $("#kwicks")?

 

Well, it works either way. But either way, I get the same error message ...

 

Its working on firefox?


Please post all your code.