document.observe("dom:loaded", function() {
  var fontSize = Cookie.get('fontSize'); 
  
  if (fontSize == '12px' || fontSize == ''){
        $('bodyElement').setStyle({fontSize: '12px'});
  }  else {
      $('bodyElement').setStyle({fontSize: '14px'});
  }  
});


function increaseFontSize(){
  var bodyElement = document.getElementsByTagName("body")[0];
  document.documentElement.removeChild(bodyElement);
  document.documentElement.appendChild(bodyElement);
  
    $('bodyElement').setStyle({fontSize: '14px'});  
    Cookie.set('fontSize','14px','360');

    document.documentElement.appendChild(bodyElement);
}

function decreaseFontSize(){
  var bodyElement = document.getElementsByTagName("body")[0];
  document.documentElement.removeChild(bodyElement);
  document.documentElement.appendChild(bodyElement);
  
    $('bodyElement').setStyle({fontSize: '12px'}); 
  
    Cookie.set('fontSize','12px','360');

    document.documentElement.appendChild(bodyElement);
}