var sizes = new Array('font-xsmall', 'font-small', 'font-medium', 'font-large', 'font-xlarge', 'font-xxlarge')
function zoomIn() {
	var current = document.body.className;
	for (var i = 0; i < sizes.length; i++) {
		if (current == sizes[i]) {
			if (i == sizes.length-1) return false;
			current = sizes[i+1];
			break;
		}
	}
	document.body.className = current;
}
function zoomOut() {
	var current = document.body.className;
	for (var i = 0; i < sizes.length; i++) {
		if (current == sizes[i]) {
			if (i == 0) return false;
			current = sizes[i-1];
			break;
		}
	}
	document.body.className = current;
}
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;
}

window.onload = function(e) {
  var cookie = readCookie("fontsize");
  if (cookie) document.body.className = cookie;
}

window.onunload = function(e) {
  var size = document.body.className;
  createCookie("fontsize", size, 365);
}
function setSize() {
	var cookie = readCookie("fontsize");
	if (cookie) document.body.className = cookie;
}