Untitled

<html>
<body>
	<canvas id="k"></canvas>
</body>
<script>
v = document.getElementById("k");
D = v.getContext("2d");
setInterval(function(){
	v.height=~c;
	o=Math.cos;
	for(r=a=1.57;a<c;D.lineTo(c+o(n)*s,c*r+o(q)*38+o(n-r)*s/r-s))
		q=(~~(a/15)%4+a%3%2)*r-i*c,
		n=(~~(a++/3)%5)*r-2,
		s=(o(q+1)+2)*31;

	D.stroke();

	i++
},i=c=91)
</script>
</html>