function menu(obj) {
	obj.blur();
	var clases = obj.parentNode.className.split(" ");
	var newclases = new Array();
	var expanded = false;
	for (var i = 0; i < clases.length; i++) {
		if (clases[i] != "expanded") {
			newclases[newclases.length] = clases[i];
		} else {
			expanded = true;
		}
	}
	if (!expanded) {
		newclases[newclases.length] = "expanded";
		createCookie(obj.parentNode.id, 1, 2);
	} else {
		eraseCookie(obj.parentNode.id);
	}
	obj.parentNode.className = newclases.join(" ");
	return false;
}
/*********************** COOKIE FUNCTIONS **************************/
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 var 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 eraseCookie(name) {
	createCookie(name,"",-1);
}