function setFontsize(size) {
	var b = document.getElementsByTagName("body")[0];
	createCookie("fontsize", size, 365);
	b.style.fontSize = size;
}
function addEvent(obj, evType, fn){ 
 if (obj.addEventListener){ 
   obj.addEventListener(evType, fn, false); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}
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 getPreferredFontsize() {
  return ('62.5%');
}
function init() {
  var cookie = readCookie("fontsize");
  var size = cookie ? cookie : getPreferredFontsize();
  setFontsize(size);
}

function uninit() {
	alert('called');
  var size = getPreferredFontsize();
  createCookie("fontsize", size, 365);
}

var cookie = readCookie("fontsize");
var size = cookie ? cookie : getPreferredFontsize();
if (size == 'null') {
  size = getPreferredFontsize();
}

//setFontsize(size);

addEvent(window, 'load', init);
//addEvent(window, 'unload', uninit);