function EcrireCookie(nom, valeur) {
		var argv=EcrireCookie.arguments;
		var argc=EcrireCookie.arguments.length;
		var expires=(argc > 2) ? argv[2] : null;
		var path=(argc > 3) ? argv[3] : null;
		var domain=(argc > 4) ? argv[4] : null;
		var secure=(argc > 5) ? argv[5] : false;
		var expdate=new Date();
		var dateExp= expdate+(31*24*60*60*1000)
		document.cookie=nom+"="+valeur+
		"; expires="+dateExp+
		((path==null) ? "" : ("; path="+path))+
		((domain==null) ? "" : ("; domain="+domain))+
		((secure==true) ? "; secure" : "");
	}
	function getCookieVal(offset) {
		var endstr=document.cookie.indexOf (";", offset);
		if (endstr==-1) endstr=document.cookie.length;
		return unescape(document.cookie.substring(offset, endstr));
	}
	function LireCookie(nom){
		var arg=nom+"=";
		var alen=arg.length;
		var clen=document.cookie.length;
		var i=0;
		while (i<clen){
			var j=i+alen;
			if (document.cookie.substring(i, j)==arg) return getCookieVal(j);
			i=document.cookie.indexOf(" ",i)+1;
			if (i==0) break;
		}
		return null;
	}