The page isn't live yet, so I could pm it to you but I don't want to post it. I suppose it is possible that some other js or css is interfering but I don't know what.
When you get this error does it specify which part of the code this is coming from? 
I'm not sure what you mean. The replacement I made is in the parent select list call to the WA functions.
WA_FilterAndPopulateSubList(shedSizes_WAJA,MM_findObj('chooseStyle'),document.getElementById('setStyle'),0,0,false,': ');
The first failure is at WA_UnloadList, but when I changed the code to condition on if thelist.options, another failure occurred. The element is not being retrieved. It worked fine in FF.
When you replaced the function call did you do this for all instances of the call or just a single instance?
Again, not sure what you mean, but I think I answered it. I only removed the use of MM_findObj in the parent select list.
Sorry for the delay responding. I have been unavailable.
