Circles in JavaScript (H Verrill)

Somewhat buggy; but will possibly rewrite to draw as svg; this draws on canvas

Hint: to stagger motion of circles, stop some of them then restart

R0 =1
R1 =1

R0 =0
R1 =0
R2 =0
R3 =0
R4 =0
R5 =0
R6 =0
R7 =0
R8 =0
R9 =0
N1 =0
N2 =0
N3 =0
N4 =0
N5 =0
N6 =0
N7 =0
N8 =0
N9 =0

circles
circles
circles
circles
circles
circles
circles
circles