WebStorage API for localStorage and sessionStorage in a simple module
/* localStorage */
webStorage.setLocal(name, value);
webStorage.getLocal(name);
webStorage.removeLocal(name);
webStorage.lengthLocal();
webStorage.clearLocal();
/* sessionStorage */
webStorage.setSession(name, value);
webStorage.getSession(name);
webStorage.removeSession(name);
webStorage.lengthSession();
webStorage.clearSession();