function fCheckForm() {

  var sErr = "";

  if ($("#sCourse").val() === "") {
    sErr += "\n - Which course would you like to attend?";
  }
  if (document.fBook.sName.value=="") {
    sErr += "\n - Name";
  }
  if (document.fBook.sMobile.value=="") {
    sErr += "\n - Mobile";
  }
  if (document.fBook.sEmail.value=="") {
    sErr += "\n - Email";
  }
  if (!document.fBook.bLocal.checked) {
    sErr += "\n - Tick the checkbox to say you live or work in the Long Eaton area";
  }
  if (!document.fBook.b18Female.checked) {
    sErr += "\n - Tick the checkbox to say you are female and aged 18 or over";
  }
  if (!document.fBook.bPrivacy.checked) {
    sErr += "\n - Tick the checkbox to agree to the privacy policy";
  }
  if ($("#sHowDidYouHear").val() === "") {
    sErr += "\n - How did you hear about us?";
  }

  if (sErr!="") {
    alert("Please check the following:-\n" + sErr);
  } else {

    grecaptcha.execute('6LeL4cEUAAAAAEucJH8nzOuVCnlE3724OzCEmePP', {action: 'homepage'}).then(function(token) {
      document.getElementById('gRecaptchaResponse').value = token;
      document.fBook.submit();
    });

  }

}