function check_form() {
  var error = 0;
  var error_message = "<?php echo JS_ERROR; ?>";

  var firstname = document.add_entry.firstname.value;
  var lastname = document.add_entry.lastname.value;
  var street_address = document.add_entry.street_address.value;
  var postcode = document.add_entry.postcode.value;
  var city = document.add_entry.city.value;
<?php // 2003-06-06 add_telephone ?>
  var telephone = document.add_entry.telephone.value;

<?php
 if (ACCOUNT_GENDER == 'true') {
?>
  if (document.add_entry.elements['gender'].type != "hidden") {
    if (document.add_entry.gender[0].checked || document.add_entry.gender[1].checked) {
    } else {
      error_message = error_message + "<?php echo JS_GENDER; ?>";
      error = 1;
    }
  }
<?php
 }
?>
  if (firstname == "" || firstname.length < <?php echo ENTRY_FIRST_NAME_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_FIRST_NAME; ?>";
    error = 1;
  }

  if (lastname == "" || lastname.length < <?php echo ENTRY_LAST_NAME_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_LAST_NAME; ?>";
    error = 1;
  }

  if (street_address == "" || street_address.length < <?php echo ENTRY_STREET_ADDRESS_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_ADDRESS; ?>";
    error = 1;
  }

  if (postcode == "" || postcode.length < <?php echo ENTRY_POSTCODE_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_POST_CODE; ?>";
    error = 1;
  }

  if (city == "" || city.length < <?php echo ENTRY_CITY_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_CITY; ?>";
    error = 1;
  }
<?php
  if (ACCOUNT_STATE == 'true') {
?>
  if (document.add_entry.state.value == "" || document.add_entry.state.length < <?php echo ENTRY_STATE_MIN_LENGTH; ?> ) {
     error_message = error_message + "<?php echo JS_STATE; ?>";
     error = 1;
  }
<?php
  }
?>

  if (document.add_entry.country.value == 0) {
    error_message = error_message + "<?php echo JS_COUNTRY; ?>";
    error = 1;
  }

<?php // 2003-06-06 add_telephone ?>
  if (telephone == '' || telephone.length < <?php echo ENTRY_TELEPHONE_MIN_LENGTH; ?>) {
    error_message = error_message + "<?php echo JS_TELEPHONE; ?>";
    error = 1;
  }

  if (error == 1) {
    alert(error_message);
    return false;
  } else {
    return true;
  }
}