function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}
function choisirTaille(sens) {
	if (!taille) taille = 0;

	if (taille>0 && sens == "-") taille--;
	if (taille<3 && sens == "+") taille++;
	
	for(var i=1;i<=3;i++){
		document.getElementById("T"+i).disabled = (taille!=i);
	}
	
	var date = new Date();
	date.setTime(date.getTime()+(365*24*60*60*1000));
	var expires = "; expires="+date.toGMTString();
	document.cookie = "taille="+taille+expires+"; path=/";
	
	changeBoutons();
	placeEtiquette();
}

function changeBoutons() {
	boutons = "";
	if ((taille == 1) || (taille == 2) || (taille == 3)) {
		boutons += "<img src=\""+URLImg+"picto-smaller.gif\" alt=\"Diminuer la taille du texte\"  accesskey=\"-\" onclick=\"choisirTaille('-')\" onkeypress=\"choisirTaille('-')\" />";
	} else {
		boutons += "<img src=\""+URLImg+"picto-smaller-off.gif\" alt=\"Diminuer la taille du texte\" />";
	}
	if ((taille == 0) || (taille == 1) || (taille == 2)) {
		boutons += "<img src=\""+URLImg+"picto-bigger.gif\" alt=\"Augmenter la taille du texte\" accesskey=\"+\" onclick=\"choisirTaille('+')\" onkeypress=\"choisirTaille('+')\" />";
	} else {
		boutons += "<img src=\""+URLImg+"picto-bigger-off.gif\" alt=\"Diminuer la taille du texte\" />";
	}
	boutons += " ";
	if (document.getElementById('picto')) document.getElementById("picto").innerHTML = boutons;
}

var taille;

function tailleOnLoad() {
	taille = readCookie("taille");
	if (!taille) taille=0;
	document.getElementById("T1").disabled = true;
	document.getElementById("T2").disabled = true;
	document.getElementById("T3").disabled = true;
	if (taille>0) document.getElementById("T"+taille).disabled = false;
	changeBoutons();
}