localStorage

if (window.localStorage) {
                var elements = document.querySelectorAll('[name]');

                for (var i = 0, length = elements.length; i < length; i++) {
                    (function(element) {
                        var name = element.getAttribute('name');

                        element.value = localStorage.getItem(name) || '';

                        element.onkeyup = function() {
                            localStorage.setItem(name, element.value);
                        };
                    })(elements[i]);
                }
            }