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              //Another shameless Bees & Bombs copy
//I only added a slider
//I like sliders

var num; //number of dots
var nSlider; //slider for number of dots

function setup(){
  //HSB is easier to make rainbows!
  nSlider = createSlider(2,40,20);

function draw(){
  num = nSlider.value();
  //display value of slider
  text("n = "+num,150,20);
  //Go to center
  //Repeat this many times
  for (var i =0; i<num; i++){
    push(); //remember this spot
    // this will be an important variable
    var shift = (2*PI*i/num);
    //space the dots around the circle
    //here's the color; Vary the hue for rainbow
    //draw the circles using a trig function for oscillation
    pop(); //return to the original spot
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