$(document).ready(function() {
    $('#FieldId').attr('readonly', 'readonly');
    $('#FieldId0').attr('readonly', 'readonly');
		//$('#search_buttons').prepend('<input id="reset_dates" value="Clear Dates" type="button" />');
		$('#reset_dates').click(function() {
			$('#FieldId').attr('value', '');
			$('#FieldId0').attr('value', '');
		});
		$('#FieldId').change(function() {
				$arrival = new Date($('#FieldId').val());
				if ($('#FieldId0').val() == '') { 
					$departure = new Date(0);
				}
				else {
					$departure = new Date($('#FieldId0').val());
				}

				// if arrival is greater or departure is null
				if ($arrival >= $departure) {
					$departure = $arrival;
					$departure.setUTCDate($departure.getUTCDate() + 1); 

					$month = $departure.getUTCMonth() + 1;
					if ($month < 10) {
						$month = '0'+$month;
					}
					$day = $departure.getUTCDate();
					if ($day < 10) {
						$day = '0'+$day;
					}
					
					$dep_str = ""+ $departure.getUTCFullYear() +"-"+ $month +"-"+ $day;
					$('#FieldId0').val($dep_str);
				}
		});
});