// JavaScript Document
function setCookie(NameOfCookie, value, expiredays)
		{
		var ExpireDate = new Date ();
		ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));
		 
		document.cookie = NameOfCookie + "=" + escape(value) + ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
		}

function centra()
{
	margini=parseInt((document.documentElement.clientHeight - 564)*0.5);
	if (margini>0) {
		document.getElementById("home").style.marginTop= margini + "px";
	} else {
		document.getElementById("home").style.marginTop= "0";
	}
	document.getElementById("home").style.display= "block";
 }
window.onresize = function() {
	centra();
}

function setFontSize(size) {
var body = document.getElementsByTagName('html')[0];
var percentuale = "11"; // default
if (size == 1) percentuale = "11";
if (size == 2) percentuale = "12";
if (size == 3) percentuale = "14";
document.body.style.fontSize = percentuale;
setCookie('fontSize',size);
}

window.onload = function() {
size = getCookie('fontSize');
setFontSize(size);
}