formulaire as3

//creation
var urlLoader:URLLoader = new URLLoader();
var urlRequest:URLRequest = new URLRequest("mail.php");
var variablesMail:URLVariables = new URLVariables();


bouton.addEventListener(MouseEvent.CLICK, envoi);

function envoi(evt:MouseEvent) {

variablesMail.nom = nom.text;
variablesMail.prenom = prenom.text;
variablesMail.mail = mail.text;
variablesMail.objet = objet.text ;
variablesMail.Message = Message.text;
variablesMail.destinataire = "contact@*******.fr";

urlRequest.data = variablesMail;
urlRequest.method = URLRequestMethod.POST;
urlLoader.load(urlRequest);

Message.text = "Message envoyé"

}

<?php
$expediteur = $_POST['mail'];
$destinataire= $_POST['destinataire'];
$nom = $_POST['nom'];
$destinataire = $_POST['destinataire'];
$objet = $_POST['objet'];
$contenu = $_POST['Message'];
$prenom = $_POST['prenom'];
function decoder($texte){
$texte = utf8_decode($texte);
$texte = str_replace("\r", "\n", $texte);
$texte = str_replace("\'", "'", $texte);
return $texte;
}

$objet = decoder($objet);
$contenu = decoder($contenu);
$FormContent="

$contenu\n
".urlencode(utf8_encode($FormContent));


$headers = "MIME-Version: 1.0\r\n";
$headers .= "Content-type: text/plain; charset=iso-8859-1\r\n";
$headers .= "From: $nom <$expediteur>\r\nReply-to : $nom <$expediteur>\nX-Mailer:PHP";
mail("contact@*****.fr",$objet, $FormContent,$headers )


?>

if(variablesMail.nom != "" && variablesMail.prenom != "" && variablesMail.mail != "" && variablesMail.objet != "" && variablesMail.Message != "" && variablesMail.destinataire != ""){
     urlRequest.data = variablesMail;
     urlRequest.method = URLRequestMethod.POST;
     urlLoader.load(urlRequest);

     Message.text = "Message envoyé";
} else {
     Message.text = "Veuillez remplir tous les champs"
}

if((variablesMail.nom != "") && (variablesMail.prenom != "") && (variablesMail.mail != "") && (variablesMail.objet != "") && (variablesMail.Message != "") && (variablesMail.destinataire != "")){
    urlRequest.data = variablesMail;
     urlRequest.method = URLRequestMethod.POST;
     urlLoader.load(urlRequest);

     Message.text = "Message envoyé";
} else {
     Message.text = "Veuillez remplir tous les champs"