Validation On Signup Not Working

hi
I see in signup.php there's validation, but its only refreshing my page if fields aren't filled in ? I haven't modified this and my signup.html calls the variables the same as they are below.


# CHECK_PAYMENT_FORM
#
# set $GLOBAL[error] if needed
# return 1/0 (valid/not-valid)
#
function check_payment_form(){
global $error;
global $vars;
global $db;

//
if (!intval($vars['product_id'])) {
$error[] = 'Please select Membership Type';
}
if (!strlen($vars['paysys_id'])){
$error[] = 'Please select Payment System';
}
if (!strlen($vars['name_f'])){
$error[] = 'Please enter your First Name';
}
if (!strlen($vars['name_l'])){
$error[] = 'Please enter your Last Name';
}
if (!check_email($vars['email'])){
$error[] = 'Please enter valid Email';
}
if (!preg_match('/^w{4}w*$/', $vars['login'])){
$error[] = "Please enter correct login. It should contain at least 4 letters, digits or _";
}
else if (!$db->check_uniq_login($vars['login'])){
$error[] = "Login '$vars[login]' already used. Please enter another login";
}
if (!strlen($vars['pass0'])){
$error[] = 'Please enter Password';
}
if ($vars['pass0'] != $vars['pass1']){
$error[] = 'Password and Password Confirmation are different. Please reenter both';
}
return !count($error);
}

Free version. is there something else ineed to turn on ?
Thanks
Elaine

i got my form validation working - there was some error text in the original php i was missing on my form to pick up the validation. :0
Elaine