function showStart() {
  document.body.className = '';
  var startButton = document.getElementById('start');
  startButton.style.display = '';
}
// Show the start button and disable the controls.
Show the start button and disable the controls.
Show the start button and disable the controls .
function showStart() {
  document.body.className = '';
  var startButton = document.getElementById('start');
  startButton.style.display = '';
}
function showStart ( ) { document . body . className = '' ; var startButton = document . getElementById ( 'start' ) ; startButton . style . display = '' ; }
Show the start button and disable the controls.
Show the start button and disable the controls .