$(function() {
			

		var dates = $( "#id_fecha_entrada, #id_fecha_salida" ).datepicker({
			changeMonth: false,
			numberOfMonths: 2,
			minDate: new Date(),
			onSelect: function( selectedDate ) {
				var option = this.id == "id_fecha_entrada" ? "minDate" : "maxDate",
					instance = $( this ).data( "datepicker" ),
					date = $.datepicker.parseDate(
						instance.settings.dateFormat ||
						$.datepicker._defaults.dateFormat,
						selectedDate, instance.settings );
				dates.not( this ).datepicker( "option", option, date );
			}
		});
	});