Canvas move object to mouse click. With easing.. :P

gistfile1.js

window.onload = function() {
    var cvs = document.getElementById("cvs");
    var ctx = cvs.getContext("2d");
    var h, w, speed = 10;
    this.onresize = function() {
        h = window.innerHeight, w = window.innerWidth;
        cvs.setAttribute("height", h);
        cvs.setAttribute("width", w);
    };
    this.onresize.call();
    var cx = w / 2,
        cy = h / 2;
    var nx = cx,
        ny = cy;
    this.onmouseup = function(event) {
        nx = event.clientX, ny = event.clientY;
    };
    var draw = function() {
        ctx.save();
        ctx.fillStyle = "#000";
        ctx.fillRect(0, 0, w, h);

        cx += (nx - cx) / speed;
        cy += (ny - cy) / speed;

        ctx.beginPath();
        ctx.fillStyle = "#fff";
        ctx.arc(cx, cy, 10, 0, Math.PI * 2);
        ctx.fill();
        ctx.closePath();

        ctx.restore();
        setTimeout(draw, 1000 / 32);
    };
    draw();
};

Which part is the easing?

Which part is the easing?

cx += (nx - cx) / speed;
cy += (ny - cy) / speed;
this part

Where is moving object code?