function fontsizeup() {
  active = getActiveStyleSheet();
  actStyle = active.substring(0,3);
  actSize = active.substring(3,active.length);
  switch (actSize) {
    case 'A--' : 
      setActiveStyleSheet(active.substring(0,3) + 'A-');
      break;
    case 'A-' : 
      setActiveStyleSheet(active.substring(0,3) + 'A');
      break;
    case 'A' : 
      setActiveStyleSheet(active.substring(0,3) + 'A+');
      break;
    case 'A+' : 
      setActiveStyleSheet(active.substring(0,3) + 'A++');
      break;
    case 'A++' :
      break;
    default :
      setActiveStyleSheet(active.substring(0,3) + 'A');
      break;
  }
}

function fontsizedown() {
  active = getActiveStyleSheet();
  actStyle = active.substring(0,3);
  actSize = active.substring(3,active.length);
  switch (actSize) {
    case 'A++' : 
      setActiveStyleSheet(active.substring(0,3) + 'A+');
      break;
    case 'A+' : 
      setActiveStyleSheet(active.substring(0,3) + 'A');
      break;
    case 'A' : 
      setActiveStyleSheet(active.substring(0,3) + 'A-');
      break;
    case 'A-' : 
      setActiveStyleSheet(active.substring(0,3) + 'A--');
      break;
    case 'A--' : 
       break;
    default :
      setActiveStyleSheet(active.substring(0,3) + 'A--');
      break;
  }
}

function setPageLook(style) {
  active = getActiveStyleSheet();
  actSize = active.substring(3,active.length);
  setActiveStyleSheet(style + actSize);
}

function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) { a.disabled = false; }
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

/*
function getPreferredStyleSheet() {
  return ("StdA");
}
*/

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

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("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
} 

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
} */

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
if (title == 'null') {
  title = getPreferredStyleSheet();
}

setActiveStyleSheet(title);