Example of listening to local storage changes

gistfile1.js

if (window.addEventListener) {
  window.addEventListener("storage", onStorage, false);
} else {
  window.attachEvent("onstorage", onStorage);
};

var onStorage = function(data) {
  // Receive changes in the localStorage
}

if (window.addEventListener) {
  window.addEventListener("storage", onStorage, false);
} else {
  window.attachEvent("onstorage", onStorage);
};

function onStorage(data) {
  // Receive changes in the localStorage
}