gistfile1.js

if ( window.addEventListener ) { 
  var kkeys = [], konami = "38,38,40,40,37,39,37,39,66,65"; 
  window.addEventListener("keydown", function(e){ 
    kkeys.shift(); 
    kkeys[9] = e.keyCode; 
    if ( kkeys.toString() == konami ) 
      window.location = "http://example.com"; 
  }, true); 
}