function checkbooking(form) {

  if (form.first_name.value == "") {
    alert( "Please enter your first name." );
    form.first_name.focus();
    return false ;
  }

  if (form.last_name.value == "") {
    alert( "Please enter your last name." );
    form.last_name.focus();
    return false ;
  }

   if (form.address.value == "") {
    alert( "Please enter your address." );
    form.address.focus();
    return false ;
  }

  if (form.phone.value == "") {
    alert( "Please enter your phone number." );
    form.phone.focus();
    return false ;
  }

  if (form.email.value == "") {
    alert( "Please enter your email address." );
    form.email.focus();
    return false ;
  }
  
  if (form.date.value == "") {
    alert( "Please enter the date you wish to hire the limo." );
    form.date.focus();
    return false ;
  }

  if (form.hours.value == "") {
    alert( "Please enter the number of hours you expect to hire the limo for." );
    form.hours.focus();
    return false ;
  }

  if (form.occasion.value == "") {
    alert( "Please enter the occasion for the limo hire." );
    form.occasion.focus();
    return false ;
  }

  if (form.passengers.value == "") {
    alert( "Please enter the number of passengers." );
    form.passengers.focus();
    return false ;
  }

  if (form.location.value == "") {
    alert( "Please enter the pickup location." );
    form.location.focus();
    return false ;
  }

  if (form.pick_address.value == "") {
    alert( "Please enter the pickup address." );
    form.pick_address.focus();
    return false ;
  }

  if (form.time.value == "") {
    alert( "Please enter the time to be picked up." );
    form.time.focus();
    return false ;
  }

  if (form.drop_location.value == "") {
    alert( "Please enter the drop off location." );
    form.drop_location.focus();
    return false ;
  }

  if (form.drop_address.value == "") {
    alert( "Please enter the drop off address." );
    form.drop_address.focus();
    return false ;
  }

  if (form.drop_address.value == "") {
    alert( "Please enter the drop off address." );
    form.drop_address.focus();
    return false ;
  }

  if (form.terms_accepted.checked != 1) {
    alert( "Please indicate that you have read and accepted our Terms and Conditions." );
    form.terms_accepted.focus();
    return false ;
  }
  return true ;
}

function checkform(form) {

  if (form.first_name.value == "") {
    alert( "Please enter your first name." );
    form.first_name.focus();
    return false ;
  }

  if (form.last_name.value == "") {
    alert( "Please enter your last name." );
    form.last_name.focus();
    return false ;
  }

   if (form.phone.value == "") {
    alert( "Please enter your phone number." );
    form.phone.focus();
    return false ;
  }

  if (form.email.value == "") {
    alert( "Please enter your email address." );
    form.email.focus();
    return false ;
  }

  if (form.comments.value == "") {
    alert( "Please enter your comments or feedback." );
    form.comments.focus();
    return false ;
  }

  return true ;
}