浏览器全屏——document.documentElement.requestFullscreen();

$('html').on('click keypress', 'a', function(event) { 
  // 不响应真正的A HREF点击事件 
  event.preventDefault(); 
  event.stopPropagation(); 
  // Trigger fullscreen 
  if (elementPrototype.requestFullscreen) { 
    document.documentElement.requestFullscreen(); 
  } else if (elementPrototype.webkitRequestFullScreen) { 
    document.documentElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT); 
  } else if (elementPrototype.mozRequestFullScreen) { 
    document.documentElement.mozRequestFullScreen(); 
  } else { 
   //xxx 
  } 
  //显示假的UI 
  $('#menu, #browser').show(); 
  $('#target-site').show(); 
 });