$.extend(DateInput.DEFAULT_OPTS, {
  //month_names: ["Enero", "Febrero", "Marzo", "Abril", "Mayo", "Junio", "Julio", "Agosto", "Septiembre", "Octubre", "Noviembre", "Diciembre"],
  month_names: ["Ene", "Feb", "Mar", "Abr", "May", "Jun", "Jul", "Ago", "Sep", "Oct", "Nov", "Dic"],  
  short_month_names: ["Ene", "Feb", "Mar", "Abr", "May", "Jun", "Jul", "Ago", "Sep", "Oct", "Nov", "Dic"],
  short_day_names: ["D", "L", "M", "X", "J", "V", "S"]
});

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