var doKon = false;
if ( window.addEventListener )
{
    var kkeys = [], konami = "38,38,40,40,37,39,37,39,66,65";
    window.addEventListener("keydown", function(e){
                    kkeys.push( e.keyCode );
                    if ( kkeys.toString().indexOf( konami ) >= 0 )
                    {
                        kkeys = [];
                        rKon();
                    } }, true);
}

function rKon()
{

    var c = document.getElementById("cssMain");
    
    if (c)
    {
        if (doKon)
        {
            c.href = "nahor.css";
        }
        else
        {
            c.href = "nahorK.css";
        }
        doKon = !doKon;
    }
}