IE invalid calling object addMethods

[kstubs]

I'm getting the error "invalid calling object" when I try to addMethods to the tag SELECT.  Try this page in IE browser.  Any help would be appreciated... just released extensive code where I have extended the SELECT tag and there is no easy way to go back.

http://www.meetscoresonline.com/ 

Thanks,

Karl..

[kstubs]

Just walked the code and it errors on this line in prototype-1.7

destination[property]

This is in the copy function of addMethods object.

[kstubs]

I took the code down... I still hope some can shed light on this problem.

[kstubs]

And I put it back up.  Here it is:

http://www.meetscoresonline.com/sandbox.html

Please have a look.  This works great in Chrome and fails in IE.

Thanks,

Karl..

[kstubs]

NOTE:  doesn't work in IE9, but seems to work in IE7, and IE8.

Did I mention how much I love IE?

[Victor]

You shouldn't pass non-functions to Element.addMethods("SELECT", {}). You have fields like __ddObject in your _selectOptions - they are causing error while IE tries to methodize() them.

[Victor]

NOTE:  doesn't work in IE9, but seems to work in IE7, and IE8.

This example doesn't work in FF 10 also.

[Victor]

Whoops, I was wrong :)
The problem is in _selectOptions.size() - there is already property named `size` in HTMLSelectElement (at least both in IE and FF) and in cannot be overwritten properly.

[kstubs]

That's it!  Thank you Victor.  I've changed size to count.

I'm a little new to adding methods to elements so wasn't sure how or where to troubleshoot.

Thanks,

Karl..

[Victor]

wasn't sure how or where to troubleshoot.

There is a debugger in IE8+ (opened by F12 key) - I've just traced a bit around the place where the error arises, and found strange behaviour of destination[property] for `size`, after that I've looked at https://developer.mozilla.org/en/DOM/HTMLSelectElement and http://msdn.microsoft.com/en-us/library/dd347116%28v=vs.85%29.aspx - and the cause was clear.

[kstubs]

Thanks for the tip Victor.  I do try to decode with IE, and I am using IETester, but my primary box is IE9, so it is a bit tricky.  I suppose if I didn't have all your help I'd be forced to undust and old machine!

Karl..

[Victor]

Thanks for the tip Victor.  I do try to decode with IE, and I am using IETester, but my primary box is IE9, so it is a bit tricky.  I suppose if I didn't have all your help I'd be forced to undust and old machine!

I use Vista + IE8 + latest IE9 platform preview + IETester (with IE6...IE8 and IE9 platform preview)