Google doodle beaten :)

gistfile1.js

// Execute this script in frame "hplogo-complex" on https://www.google.com/doodles/hurdles-2012 :-)
var script = document.createElement('script');
script.src = 'https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js';
script.type = 'text/javascript';
document.getElementsByTagName('head')[0].appendChild(script);

window.skip = false;
window.target = "#hplogo_pc";
// Define here the time interval between 2 arrow hits :)
window.interval = 15;
setInterval(function(){
    // Allows to stop hitting left and right arrows
    if(!window.skip){
      $(target).trigger(jQuery.Event("keydown", { keyCode: 39 }));
      $(target).trigger(jQuery.Event("keyup", { keyCode: 39 }));
      console.log("clicked right");
      setTimeout(function(){
        $(target).trigger(jQuery.Event("keydown", { keyCode: 37 }));
        $(target).trigger(jQuery.Event("keyup", { keyCode: 37 }));
        console.log("clicked left");
      },interval);
    }
}, interval*2);