// Global variables
let limitFirstDay = new Date();
let limitLastDay = new Date();

function setDateLimits( inRowCount) {
    $('#q4 tr td[data-title="Date"] input').each( function( rowIndex) {
      if (rowIndex == 0) {
		limitFirstDay = new Date( $(this).val());
		limitLastDay = new Date( limitFirstDay);
	    limitFirstDay.setDate(1);
	    limitLastDay.setMonth(limitLastDay.getMonth() + 1);
        limitLastDay.setDate(1);
        limitLastDay.setDate(limitLastDay.getDate() - 1);
      } else {
        if (rowIndex == inRowCount - 1)
			$(this).attr(
              {min: limitFirstDay.toISOString().substring(0, 10),
               max: limitLastDay.toISOString().substring(0, 10)});
      };
    });
};

$(document).ready( function() {
  $('#q3').click( function() { // Add row
    setDateLimits($('.propCount').val());
  });
});