function fenetre(url,nom) {
	var t = document.getElementById('from_texte').value;
	var s = document.getElementById('from_signature').value;
	var n = document.getElementById('destinataire_nom').value;
	var p = document.getElementById('destinataire_prenom').value;
	var c = 1;
	for(i=1;i<=4;i++){
		if(document.getElementById('carte'+i).checked == true){
			c = i;
		}
	}
	window.open(url+'?t='+t+'&s='+s+'&n='+n+'&p='+p+'&c='+c ,nom, 'toolbar=no,location=no,directories=no,status=no,menubar=no,resizable=no,scrollbars=yes,copyhistory=no,top=10,left=10,width=680')
}