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function onDateChanged(y, m) {
    $('#calYear').val(y)
    $('#calMonth').val(m)
    $('#dataChanged').trigger('click');
}

function onDayChanged(date) {
    $('#calYear').val("0")
    $('#calMonth').val("0")
    $('#change').val(date)
    $('#dayChanged').trigger('click');
}

$( "#datepicker" ).datepicker({
    inline: true,
    beforeShowDay: nationalDays,
    dateFormat : 'dd/mm/yy',
    changeMonth : true,
    changeYear : true,
    minDate : '01/01/2007', 
    onChangeMonthYear : onDateChanged,
    defaultDate: new Date('<fmt:formatDate pattern="YYYY/MM/dd" value="${model.calendarModel.selectedDate}" />'),
    onSelect: function(dateText, inst) { 
        onDayChanged(dateText)
    }    
});