clearing "womb" element reference to avoid reference error in IE8 when switching contexts
clearing "womb" element reference to avoid reference error in IE8 when switching contexts

git-svn-id: cc12c73f837f4c86aedaac3e81d294eae78e8bd7@5461 e969d3be-0e28-0410-a27f-dd5c76401a8b

darwin/firebug.lite