Thread:Project:Forum/Two warning ocurring only in Internet Explorer

Hi, I've installed MediaWiki on IIS. It works very well. But I've this issue: when opening a page in Internet Explorer I get these 2 warnings, that I can't find anywhere on the internet (I translate themfrom Italian to English):

Message: Incompatibility between types.

index.php

Line: 15513

Character: 3

Code: 0

URI: http://en.wikipedia.org/w/index.php?title=User:Cacycle/wikEd.js&action=raw&ctype=text/javascript

Message: Property or method not supported by the object

Line: 15492

Character: 4

Code: 0

URI: http://en.wikipedia.org/w/index.php?title=User:Cacycle/wikEd.js&action=raw&ctype=text/javascript

I need to solve it because I'm opening MediaWiki in an ActiveX control which always reports the warnings with alerts (very annoying for users).

Many thanks!