if (document.images){
	envoi_off = new Image();
	envoi_off.src = "/images/nav/bt-envoi-sms-off.gif";
	envoi_on = new Image();
	envoi_on.src = "/images/nav/bt-envoi-sms-on.gif";
	liste_off = new Image();
	liste_off.src = "/images/nav/bt-sms-liste-off.gif";
	liste_on = new Image();
	liste_on.src = "/images/nav/bt-sms-liste-on.gif";
	historique_off = new Image();
	historique_off.src = "/images/nav/bt-historique-off.gif";
	historique_on = new Image();
	historique_on.src = "/images/nav/bt-historique-on.gif";
	repertoire_off = new Image();
	repertoire_off.src = "/images/nav/bt-repertoire-tel-off.gif";
	repertoire_on = new Image();
	repertoire_on.src = "/images/nav/bt-repertoire-tel-on.gif";
	infos_off = new Image();
	infos_off.src = "/images/nav/bt-infos-utilisateur-off.gif";
	infos_on = new Image();
	infos_on.src = "/images/nav/bt-infos-utilisateur-on.gif";
	achat_off = new Image();
	achat_off.src = "/images/nav/bt-achat-credits-off.gif";
	achat_on = new Image();
	achat_on.src = "/images/nav/bt-achat-credits-on.gif";
	parrainage_off = new Image();
	parrainage_off.src = "/images/nav/bt-parrainage-off.gif";
	parrainage_on = new Image();
	parrainage_on.src = "/images/nav/bt-parrainage-on.gif";
	aide_off = new Image();
	aide_off.src = "/images/nav/bt-aide-off.gif";
	aide_on = new Image();
	aide_on.src = "/images/nav/bt-aide-on.gif";
}

function changeImages(){
	if (document.images){
		for (var i=0; i<changeImages.arguments.length; i+=2){
			document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
		}
	}
}


var ArrLayer = new Array("1","2a","2b","3a","3b","4","5a","5b","5c","6a","6b","6c","7a","7b","8");
var compt="",temps=500;

function af(n) {
	if (compt != ""){clearTimeout(compt)}
	for (i=0; i < ArrLayer.length; i++) {
		document.getElementById('ca'+ArrLayer[i]).style.visibility = 'hidden';
	}
	var _obj;
	_obj = document.getElementById('ca'+n).style;
	_obj.visibility = 'visible';
}

function fa(n) {
	compt=setTimeout("document.getElementById('ca"+n+"').style.visibility='hidden';",temps)
}