function xhr_form_contact(frm, receptacle) {

	var params = "nom=" + frm.elements['nom'].value + 
	             "&prenom=" + frm.elements['prenom'].value + 
		     "&adresse=" + frm.elements['adresse'].value + 
		     "&email=" + frm.elements['email'].value + 
		     "&tel=" + frm.elements['tel'].value + 
		     "&message=" + frm.elements['message'].value ;
		
	new Ajax.Updater('messageInfo','traitement_form/traitement_form_contact.php', {
		asynchronous: true,
		method: "post",
		parameters: params,
		onComplete: function(request) {
			//Effect.Fade('messageErreur',{duration:0.5});
			//Effect.Fade('messageInfo',{duration:0.5});
			//Effect.Appear('messageEnvoi',{duration:0.5});
		}
	});	
}