[HTML] - Form Scope - [Resolved]

I don't know if it's the php forum or in this forum this question apply too but here it goes:

I have a a sheet asking some information about a user name, address, zipcode etc...

In the middle of the questionnaire, I'm asking information that change the next question available answer thus creating a "mini" questionnaire into the actual questionnaire.

So I wrote code like this:
(I've cut the unimportant part of the code)

<form action="validation_formulaire_utilisateur.php" method="post" name="formulaire_utilisateur">

<form name="selection_pays" action="<? $PHP_SELF; ?>" method="post">
Pays: <select name="choix_pays" onChange="Javascript:submit()"><BR>
</select><BR>
</form>

Nom d'utilisateur (alias): <input type="text" name="txtAlias" size="20"><BR>
Mot de passe: <input type="text" name="txtMDP" size="20"><BR>
email: <input type="text" name="txtEMail" size="20"><BR>
<input type="submit" value="Créer le compte!" name="btnSubmit"><BR>
</form>

When I use the "onChange" from the javacript in the "middle" <Form>, it submit the whole questionnaire asking "validation_formulaire_utilisateur.php" instead of self as if I've push the submit button.

What I want to do is if the <Select> is change, refresh on self and when I click on the submit button, then use "validation_formulaire_utilisateur.php" how can I achieve this?

Thks

The answer is that <FORM> can't be nested.
Thus making my question irrevelant now :(

Must find a new way to seperate each form submit.