probleme de variables flash/php

timeline.masque1.onRelease=function(){
	for(i=0;i<=nbr_logo;i++){
		if(timeline.touche.hitTest(tab_logo[i])){
			lien=tab_logo_lien[i];
			trace(lien);
		var envoie_lv:LoadVars=new LoadVars();
				envoie_lv.lien=lien;
				envoie_lv.sendAndLoad("tf1.php","_self","POST");
				cphoto_xml.load("tf1.xml?random="+Math.random()); 
			}
		}//fin for
	}//fin onRelease
 
/*_____________BOUTONS DEFILANT______________*/
 
tab_logo_lien=new Array("lien0","lien1","lien2","lien3","lien4","lien5","lien6","ect...");	
 
tab_logo=new Array();//tableau des bt logos
nbr_logo=24;
for(i=0;i<=nbr_logo;i++){
	lien=tab_logo_lien[i];
	tab_logo[i]=eval("timeline.defilement1.logo"+i);
	}

if (isset($_POST['lien'])) {
   $chaine=$_POST['lien'];
} else {
    $chaine = '';
}
 
if
($chaine == "lien1"){$requete = "SELECT * FROM varietes WHERE chaine='tf1' UNION SELECT * FROM meuble WHERE chaine='tf1' ";}
else if 
($chaine == "lien2"){$requete = "SELECT * FROM varietes WHERE chaine='france2' UNION SELECT * FROM meuble WHERE chaine='france2'";}
 
$req = mysql_query($requete,$connection);
$contenu='<?xml version="1.0" encoding="ISO-8859-1"?>'."\n\r".'<cphoto>'."\n\r";
$i=1;
while($enr=mysql_fetch_array($req)){
$contenu.='<entree num="'.$i.'" fichier="'.$enr["img"].'">'."\n".
'<titrephoto>'.$enr['titrephoto'].'</titrephoto>'."\n".
'<conteneur>'.$enr['conteneur'].'</conteneur>'."\n".
'</entree>'."\n\r";
$i++;
}
$contenu.='</cphoto>';
$pagexml="tf1.xml";
 
touch($pagexml);
 
if($fp=fopen($pagexml,"w")){
fwrite($fp,$contenu);
fclose($fp);}else{
echo "Ouverture du fichier impossible";
 
}/*fin if*/
 
mysql_close();
exit();
 
?>