jquery.localStorage.js

(function($) {
  $.localStorage = function(key, value) {
    if (localStorage == null) {
      return console.log('Local storage not supported!');
    } else {
      try {
        if (typeof value != 'undefined') {
          localStorage.setItem(key, value);
          result = value;
        } else {
          result = (value === null) ? localStorage.removeItem(key) :
            localStorage.getItem(key);
        };
        return result;
      } catch(err) {
        private_browsing_error = 'Unable to store local data. Are you using Private Browsing?';
        /QUOTA_EXCEEDED_ERR/.test(err) ? alert(private_browsing_error) : throw(err);
      };
    };
  };
})(jQuery);