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 FontSize(size) {

	var body = document.getElementsByTagName('body')[0];

	var percentuale = "84%";

	if (size == 'piccolo') { percentuale = "84%"; }

	if (size == 'medio') { percentuale = "90%"; }

	if (size == 'grande') { percentuale = "100%"; }

	body.style.fontSize = percentuale;

	createCookie('Rassegna_arte_e_creativita-FontSize',size,365);

}

function FontFamily(family) {

	var body = document.getElementsByTagName('body')[0];

	var face = "arial";

	if (family == 'arial') { face = "arial"; }

	if (family == 'verdana') { face = "verdana"; }

	if (family == 'serif') { face = "serif"; }

	body.style.fontFamily = face;

	createCookie('Astronomia-FontSize',size,365);

}

window.onload = function() {

	size = readCookie('Rassegna_arte_e_creativita-FontSize');

	FontSize(size);

}