gistfile1.js

if ( window.addEventListener ) { 
  var state = 0, konami = [38,38,40,40,37,39,37,39,66,65]; 
  window.addEventListener("keydown", function(e) { 
    if ( e.keyCode == konami[state] ) state++; 
    else state = 0; 
    if ( state == 10 ) 
      window.location = "http://example.com"; 
  }, true); 
}