index.html

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<script id='socketio'></script>
<script>
$('#socketio').attr('src', location.protocol+"//"+location.host+"/socket.io/socket.io.js")
$(window).load(function(){
   //your code here
   $('#game').attr('src', location.protocol+"//"+location.host+"/game.js");
});

</script>
<audio autoplay='autoplay' loop='loop'><source src='pacman.wav' /></audio>
<canvas id='board' width='1032' height='500' ></canvas>
<script id='game'></script>
<style>
	#debugmsg {
		display: none;
		position: absolute;
		left: 100px;
		top: 50px;
		z-index: 100;
		font-size: 10pt;
		color: blue;
	}
	#message {
		display: none;
		position: absolute;
		left: 100px;
		top: 50px;
		z-index: 100;
		font-size: 73pt;
		color: red;
	}
	#full {
		display: none;
		z-index: 100;
		position: absolute;
		left: 100px;
		top: 100px;
		font-size: 72px;
		color: red;
	}
</style>
<div id='debugmsg'></div>
<div id='message'></div>
<div id='full'></div>