I cannot get the code for question #2 from chapter 11 to run properly.
I keep getting the debugger stopping at this line when I try to run it from IE:

var imageNumber = getCookieValue("displayedImages");

Don't know why.
It does run in Netscape, but the image doesn't change.
Can someone tell me what I could be doing wrong?

It is working ok for me. Check the spelling of displayedImages in the code.