$.extend(DateInput.DEFAULT_OPTS, {
  month_names: ["Januari", "Februari", "Mars", "April", "Maj", "Juni", "Juli", "Augusti", "September", "Oktober", "November", "December"],
  short_month_names: ["jan", "feb", "mar", "apr", "maj", "jun", "jul", "aug", "sep", "okt", "nov", "dec"],
  short_day_names: ["sön", "mån", "tis", "ons", "tor", "fre", "lör"]
});

$.extend(DateInput.DEFAULT_OPTS, {
  stringToDate: function(string) {
    var matches;
    if (matches = string.match(/^(\d{4,4})-(\d{2,2})-(\d{2,2})$/)) {
      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;
  }
});

$($.date_input.initialize);