if($('#check_kpd').prop("checked") == true){
  $('#kpd').attr("required", true);
}else {
  $('#kpd').attr("required", false);
}

if($('#check_date').prop("checked") == true){
  $('#start_date').attr("required", true);
}else {
  $('#start_date').attr("required", false);
}

if($('#checkPlateNo').prop("checked") == true){
  $('#plate_no').attr("required", true);
}else {
  $('#plate_no').attr("required", false);
}

if($('#checkCompanyNo').prop("checked") == true){
  $('#company_no').attr("required", true);
}else {
  $('#company_no').attr("required", false);
}

if($('#checkNric').prop("checked") == true){
  $('#nric').attr("required", true);
}else {
  $('#nric').attr("required", false);
}

if($('#checkLicense').prop("checked") == true){
  $('#license').attr("required", true);
}else {
  $('#license').attr("required", false);
}

if($('#checkName').prop("checked") == true){
  $('#nameP').attr("required", true);
}else {
  $('#nameP').attr("required", false);
}

if($('#checkCompanyName').prop("checked") == true){
  $('#company_name').attr("required", true);
}else {
  $('#company_name').attr("required", false);
}


$('#check_kpd').change(function(){
  var check_kpd = $("#check_kpd");
  check_kpd.attr("checked", !check_kpd.attr("checked"));

  var kpd = $('#kpd');
  kpd.attr("required", !kpd.attr("required"));
});

$('#check_date').change(function(){
  var check_date = $("#check_date");
  check_date.attr("checked", !check_date.attr("checked"));

  var start_date = $('#start_date');
  start_date.attr("required", !start_date.attr("required"));
});

$('#checkPlateNo').change(function(){
  var checkPlateNo = $("#checkPlateNo");
  checkPlateNo.attr("checked", !checkPlateNo.attr("checked"));

  var plate_no = $('#plate_no');
  plate_no.attr("required", !plate_no.attr("required"));
});

$('#checkCompanyNo').change(function(){
  var checkCompanyNo = $("#checkCompanyNo");
  checkCompanyNo.attr("checked", !checkCompanyNo.attr("checked"));

  var company_no = $('#company_no');
  company_no.attr("required", !company_no.attr("required"));
});

$('#checkNric').change(function(){
  var checkNric = $("#checkNric");
  checkNric.attr("checked", !checkNric.attr("checked"));

  var nric = $('#nric');
  nric.attr("required", !nric.attr("required"));
});

$('#checkLicense').change(function(){
  var checkLicense = $("#checkLicense");
  checkLicense.attr("checked", !checkLicense.attr("checked"));

  var license = $('#license');
  license.attr("required", !license.attr("required"));
});

$('#checkName').change(function(){
  var checkName = $("#checkName");
  checkName.attr("checked", !checkName.attr("checked"));

  var nameP = $('#nameP');
  nameP.attr("required", !nameP.attr("required"));
});

$('#checkCompanyName').change(function(){
  var checkCompanyName = $("#checkCompanyName");
  checkCompanyName.attr("checked", !checkCompanyName.attr("checked"));

  var company_name = $('#company_name');
  company_name.attr("required", !company_name.attr("required"));
});