code:

//
function star(C,centerx, centery, width, height)
{

var hw = width*.5; //defining center point, x
var hh = height*.5; //defining center point, y
var L = centerx - hw; //defining outer limit to left
var R = centerx + hw; //defining outer limit to right
var T = centery - hh; //defining outer limit at top
var B = centery - hh; //defining outer limit at bottom

for (var i=0; i<50; i++){
var endx = Math.random() * (width);
var endy = Math.random() * (height);
C.setPenWeight(Math.random()*.1);
C.setPenColor(Math.random(), 0, Math.random()*.5);
C.drawLine(centerx, centery, L+endx, T+endy);
}
}

function change(input) {
var C = new Canvas();
// normalize input
var normI = input*(1.0/999);
star(C,.5,.5,normI,normI);
}
change(Math.random()*999);
//
//
// stop playback head to prevent continuous redrawing
//
stop();>