// JavaScript Document
var a_canva = document.getElementById("canva");
var contx = a_canva.getContext("2d");
var i = 1;
while (i <= 40) {
count = i;
var circ = 302/i;
while (count >= 1) {
contx.beginPath();
contx.arc(circ,302,300/i,0,2*Math.PI);
contx.strokeStyle="black";
contx.lineWidth=4/i;
contx.stroke();
circ +=(604/i);
count--;
}
i++;
}