Person.prototype.bezier = function(t, p0, p1, p2, p3){
	var cX = 3 * (p1.x - p0.x),
		bX = 3 * (p2.x - p1.x) - cX,
		aX = p3.x - p0.x - cX - bX;

	var cY = 3 * (p1.y - p0.y),
		bY = 3 * (p2.y - p1.y) - cY,
		aY = p3.y - p0.y - cY - bY;

	var x = (aX * Math.pow(t, 3)) + (bX * Math.pow(t, 2)) + (cX * t) + p0.x;
	var y = (aY * Math.pow(t, 3)) + (bY * Math.pow(t, 2)) + (cY * t) + p0.y;

	return {x: x, y: y};
	},

	(function(){
	var accuracy = 0.01, //this'll give the bezier 100 segments
		p0 = {x: 10, y: 10}, //use whatever points you want obviously
		p1 = {x: 50, y: 100},
		p2 = {x: 150, y: 200},
		p3 = {x: 200, y: 75},
		ctx = document.createElement('canvas').getContext('2d');

	ctx.width = 500;
	ctx.height = 500;
	document.body.appendChild(ctx.canvas);

	ctx.moveTo(p0.x, p0.y);
	for (var i=0; i<1; i+=accuracy){
		var p = bezier(i, p0, p1, p2, p3);
		ctx.lineTo(p.x, p.y);
	}

	ctx.stroke()
	})()