/*! konami.js
https://github.com/MightyPork/konami.js
(c) MightyPork 2015, MIT License
Usage: konami(callback);
*/

(function (window) {
	"use strict";

	var d = window.document;
	var keys = [38, 38, 40, 40, 37, 39, 37, 39, 66, 65];
	var progress = 0;

	window.konami = function (h) {
		var listener = function (e) {
			if (e.keyCode == keys[progress]) {
				if (++progress == keys.length) {
					console.log('コナミ');

					if (typeof h == 'function') {
						h();
					}

					progress = 0;
				}
			} else {
				if (!(e.keyCode == 38 && progress <= 2)) {
					progress = 0;
				}
			}
		};

		if (d.addEventListener) {
			d.addEventListener('keyup', listener);
		} else {
			d.onkeyup = listener;
		}
	};
})(window);