function writeCookie(title) {
  var myCookie = Cookie.write('dimension', title,{duration: 0});
  setDimension(title);
  return false;
}
function setDimension(title) {
   var dimensione = '1.0em';
   if (title == 'big1'){
      var dimensione = '1.2em';
    }
   if ($chk($("box-main-content-int"))) {
     $("box-main-content-int").setStyle('font-size', dimensione);
   }
   else if ($chk($("maincorp")))
   {
     $("maincorp").setStyle('font-size', dimensione);
   }
}