I have recently had to do some script debugging, both client and server side and found some good resources on the topic I thought I would pass along. This is one of those things I have do remind myself of how to do from time to time. I typically use Firefox to debug Javascript, but there are times I have to do it with IE.
So below for my own reference as well as hopefully some one else's, are some useful links for debugging Javascript in IE.
Microsoft's Script Debugger can be downloaded from here.
Directions on using it are here.
Monica Rosculet wrote a great article about debugging script with Visual Studio here.
The source of most of this information came from an IEBlog entry that can be found here.
Hope this saves someone else some research time!
Cheers,
Robert Porter