jQuery.extend(DateInput.DEFAULT_OPTS, {
  month_names: ["Janvier", "Février", "Mars", "Avril", "Mai", "Juin", "Juillet", "Août", "Septembre", "Octobre", "Novembre", "Décembre"],
  short_month_names: ["Jan", "Fev", "Mar", "Avr", "Mai", "Juin", "Juil", "Aou", "Sep", "Oct", "Nov", "Dec"],
  short_day_names: ["Dim", "Lun", "Mar", "Mer", "Jeu", "Ven", "Sam"]
});

jQuery.extend(DateInput.DEFAULT_OPTS, {
  stringToDate: function(string) {
    var matches;
    if (matches = string.match(/^(\d{4,4})-(\d{2,2})-(\d{2,2})$/)) {
      return new Date(matches[1], matches[2] - 1, matches[3]);
    } else {
      return null;
    };
  },

  dateToString: function(date) {
    var month = (date.getMonth() + 1).toString();
    var dom = date.getDate().toString();
    if (month.length == 1) month = "0" + month;
    if (dom.length == 1) dom = "0" + dom;
    return date.getFullYear() + "-" + month + "-" + dom;
  }
});