function Navigateur(){
	this.ver=navigator.appVersion;
	this.dom=document.getElementById?1:0;
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;
	this.ie4=(document.all && !this.dom)?1:0;
	this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie5 || this.ie4 || this.ns4 || this.ns5);
	return this;
	}
	
	bw=new Navigateur();
		
	
	
function fabrique(obj){
		this.css=bw.dom? document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval("document.layers." +obj):0;
		return this;
}

var menu  = new Array();
var ancien = 0;

for (var i = 0; i < nbremenus; i++){
	menu[i]=new fabrique('menu'+i);menu[i].css.visibility="hidden";
	}
		
function voir(a){
	menu[ancien].css.visibility="hidden";
	menu[a].css.visibility="visible";ancien=a;
	}
	ancien=0;