local_settings.js

function setLocal(name,val) {
  if(typeof(Storage) !== "undefined") {
    localStorage.setItem(name, val);
  }
  else {
    setCookie(name,val,365);
  }
}

function getLocal(name) {
  if(typeof(Storage) !== "undefined") {
    return localStorage.getItem(name);
  }
  else {
    return getCookie(name);
  }
}

function setCookie(cname,cvalue,exdays) {
    var d = new Date();
    d.setTime(d.getTime() + (exdays*24*60*60*1000));
    var expires = "expires=" + d.toGMTString();
    document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/";
}

function getCookie(cname) {
    var name = cname + "=";
    var decodedCookie = decodeURIComponent(document.cookie);
    var ca = decodedCookie.split(';');
    for(var i = 0; i < ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return "";
}