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<title>Document</title>
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<canvas width="600" height="400"></canvas>
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var pincel = pantalla.getContext("2d");
pincel.fillStyle = "lightgray";
pincel.fillRect(0, 0, 600, 400);
function dibujarCirculo(x, y, radio, color) {
pincel.fillStyle = color;
pincel.beginPath();
pincel.arc(x, y, radio, 0, 2*3.14);
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dibujarCirculo(300,200,20,"red")
dibujarCirculo(260,200,20,"orange")
dibujarCirculo(300,160,20,"yellow")
dibujarCirculo(300,240,20,"blue")
dibujarCirculo(340,200,20,"black")
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