Load Firebug Lite when sequence "d e b u g" is typed

gistfile1.js

var hasFirebugLite = false;

runFirebug = function () {
    if (!hasFirebugLite) {
        $.getScript('https://getfirebug.com/firebug-lite.js', function () {
            hasFirebugLite = true;
        });
    }
}

enableFirebug = function () { //soh funciona uma vez! nao tentar digitar a sequencia denovo
    var fbkeys = [],
        firebugSequence = "68,69,66,85,71";

    $(window).bind('keydown', function (e) {
        fbkeys.push(e.keyCode);

        if (fbkeys.toString().indexOf(firebugSequence) == 0) {
            runFirebug();
        }
    });

    if (window.location.href.indexOf('debug') > 0) {
        $("<a href='#'>Open Firebug Lite</a>").click(runFirebug).appendTo("body");
    }
}

$(enableFirebug);