window.fbAsyncInit = function() {
    FB.init({appId: 'your app id', status: true, cookie: true,
             xfbml: true});
  };
  (function() {
    var e = document.createElement('script'); e.async = true;
    e.src = document.location.protocol +
      '//connect.facebook.net/fr_FR/all.js';
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document.write('<fb:like href="http://www.simpleagency.ch' + location.pathname + '" send="true" layout="button_count" show_faces="false" width="200" font="lucida grande" colorscheme="light"></fb:like>');