Some DOM centric code to easily provide a raw translation using REST Google Translate API.

gistfile1.txt

$.each($('#main').find('.content article').find('p, li, :header'), function(i, p){
  var p = $(p);
  var html = $(p).html();
  $.getJSON('https://www.googleapis.com/language/translate/v2?key=AIzaSyCzfAwza3eYYFg2ketfePOAVznG4Oz0CXM&q='+html+'&source=fr&target=en&callback=?', function(results){
    console.log(results);
    p.html(results.data.translations[0].translatedText);
  });
});

googletranslate-jquery-blog.js

$.each($('#main').find('.content div.wikistyle').find('p, li, :header'), function(i, p){
  var p = $(p);
  var html = $(p).html();
  $.getJSON('https://www.googleapis.com/language/translate/v2?key=key&q='+html+'&source=fr&target=en&callback=?', function(results){
    console.log(results);
    p.html(results.data.translations[0].translatedText);
  });
});