Firebug is reporting a "document.attachEvent is not a function" error on the Hindi Wikipedia
Chrome reports the same
"/w/index.php?title=-&action=raw&smaxage=0&gen=js&useskin=monobook&283l:83"
They're using monobook. Doesn't seem to occur on en when ?useskin=monobook
Version: unspecified
Severity: normal
URL: http://hi.wikipedia.org