from wikipedia:
"Traditionally, the word has been spelled judgment in all forms of the English language. However, the spelling judgement (with e added) largely replaced judgment in the United Kingdom in a
non-legal context. In the context of the law, however, judgment is preferred. This spelling change contrasts with other similar spelling changes made in American English, which were rejected in the UK. In the US at least, judgment is still preferred and judgement is considered incorrect by many American style guides. As with many such spelling differences, both forms are
equally acceptable in Canadian English and Australian English. In New Zealand English the form judgment is the preferred spelling in dictionaries, newspapers and legislation, although the variant judgement can also be found in all three categories."
http://en.wikipedia.org/wiki/Judgment
so in this case the Americans still use the correct form and the British 'butchered' the word...