function $(arg){
	return document.getElementById(arg);
}
function initialisation(){
	document.getElementById('conteneur').style.visibility = "visible";
	document.getElementById('menu_contenu1').style.height = "0px";
	document.getElementById('menu_contenu2').style.height = "0px";
	document.getElementById('menu2_contenu1').style.height = "0px";
	document.getElementById('menu2_contenu2').style.height = "0px";
	document.getElementById('menu1_contenu1').style.height = "0px";
	var navig = navigator.userAgent.toLowerCase();
	if(navig.indexOf("msie 7") == -1 && navig.indexOf("safari") == -1 && navig.indexOf("firefox") == -1){
		if(navig.indexOf("msie 6") != -1){
			if(document.getElementById('navigateur_alert')){
				document.getElementById('navigateur_alert').innerHTML = "optimisé";
			}
		}
		if(document.getElementById('navigateur')){
			document.getElementById('navigateur').style.display = "block";
		}
	}
}
function completerAriane(nom){
	if(nom.length > 0){
		document.getElementById("ariane_nom").innerHTML = " > "+nom;
	} else {
		document.getElementById("ariane_nom").innerHTML = "";
	}
}