; (function ($) {
    $.fn.extend({
        doneTyping: function (callback, timeout) {
            timeout = timeout || 500; // 500 ms default timeout
            var timeoutReference,
                doneTyping = function (el) {
                    if (!timeoutReference) return;
                    timeoutReference = null;
                    callback.call(el);
                };
            return this.each(function (i, el) {
                var $el = $(el);
                // Chrome Fix (Use keyup over keypress to detect backspace)
                // thank you @palerdot
                $el.is(':input') && $el.on('keyup keypress paste', function (e) {
                    // This catches the backspace button in chrome, but also prevents
                    // the event from triggering too preemptively. Without this line,
                    // using tab/shift+tab will make the focused element fire the callback.
                    if (e.type == 'keyup' && e.keyCode != 8) return;

                    // Check if timeout has been set. If it has, "reset" the clock and
                    // start over again.
                    if (timeoutReference) clearTimeout(timeoutReference);
                    timeoutReference = setTimeout(function () {
                        // if we made it here, our timeout has elapsed. Fire the
                        // callback
                        doneTyping(el);
                    }, timeout);
                }).on('blur', function () {
                    // If we can, fire the event since we're leaving the field
                    doneTyping(el);
                });
            });
        }
    });
})(jQuery);