round = 0;
stopFlag = 0;

function crashAndBurn()
{
  switch (round)
  {
    case 0:
      changeBack('#000000');
      break;
    case 1:
      changeBack('#888888');
      break;
    case 2:
      changeBack('#f6f6f6');
      break;
    case 3:
      changeBack('#000000');
      $('#guru').show();
      break;
    default:
      stopFlag = 1;
  }
  round++;
  if(!stopFlag) setTimeout(crashAndBurn, 1000); 
}

function changeBack(hex)
{
  $('body').css('background-color', hex);
}


$(document).ready(function(){
  crashAndBurn();
});