function add() {
  var new_chq_no = parseInt($('#total_chq').val()) + 1;
  var new_input = "";
  $('#new_chq').append(new_input);
}

function remove() {
  var last_chq_no = $('#total_chq').val();
  if (last_chq_no > 1) {
    $('#new_' + last_chq_no).append('');
    $('#total_chq').val(last_chq_no - 1);
  }
}