Okay, i worked step by step, but now, i dont know, how to ask for the $errors
$errors=array_merge(
qa_handle_email_validate($inhandle, $inemail),
qa_password_validate($inpassword)
);
with qa_handle_email_, i validate the $inhandle, and the $inemail,
with qa_password_, i validate the $inpassword but how can i check, if checkbox is not checked. for this case i need the $error message ond the form must not be send.