var key_presses = [];
var cheat_code = "38,38,40,40,37,39,37,39,66,65";

function konami() {
    window.location = "http://www.kennynet.co.uk/gatekeeper";
}

function konami_key_press(key_code) {
    key_presses.push(key_code);

    if(key_presses.toString().indexOf(cheat_code) >= 0) {
        key_presses = [];
        konami();
    }
}

if(window.addEventListener) {
    window.addEventListener("keydown", function(e) {
        konami_key_press(e.keyCode);
    }, true);
} else if(window.attachEvent) {
    document.attachEvent("onkeydown", function() {
        konami_key_press(window.event.keyCode);
    });
}