JAVASCRIPT NEEDED TO DO THIS WITH STRIKEDISPLAY:

var root = new StrikeDisplay("main","#000000",30,true);
var wid = root.stage.stageWidth;
var hei = root.stage.stageHeight;

var b = new Ball("#FFFFFF",30);
b.disp.x = b.disp.y = 200;
root.stage.addChild(b.disp);

var b2 = new Ball("#CCCCCC",10);
b2.disp.x = -b.disp.width;
b2.disp.y = -b.disp.height;
b.disp.addChild(b2.disp);

b.disp.addEventListener("mouseDown",startDrag);
root.stage.addEventListener("enterFrame",runLoop);
var dragging = false;
var prlx = [0,0];
var vel = [0,0];

function Ball(_color,_size) {
   this.c = _color;
   this.disp = new Sprite();
   this.disp.graphics.beginFill(this.c,1);
   this.disp.graphics.drawCircle(0,0,_size);
   this.disp.graphics.endFill();
   this.disp.addEventListener("enterFrame",this.rotateMe.bind(this));
}
Ball.prototype.rotateMe = function(evt) {
   this.disp.rotation+=3;
}
function startDrag(evt) {
   vel = [0,0];
   root.stage.addEventListener("mouseUp",killDrag);
   b.disp.removeEventListener("mouseDown",startDrag);
   prlx = [root._mouse.x-b.disp.x,root._mouse.y-b.disp.y];
   dragging = true;
}

function runLoop(e) {
   if (dragging) {
  	 var n = root._mouse.x-prlx[0];
  	 var m = root._mouse.y-prlx[1];
   	vel = [n-b.disp.x,m-b.disp.y];
   	b.disp.x = n;
   	b.disp.y = m;
   } else {
   	b.disp.x += vel[0];
   	b.disp.y += vel[1];
   }
   if (b.disp.x>root.stage.stageWidth-b.disp.width/2 || b.disp.x<b.disp.width/2) {
   	b.disp.x=b.disp.x<b.disp.width?b.disp.width/2:root.stage.stageWidth-b.disp.width/2;
   	vel[0]*=-1;
   }
   if (b.disp.y>root.stage.stageHeight-b.disp.height/2 || b.disp.y<b.disp.height/2) {
   	b.disp.y=b.disp.y<b.disp.height/2?b.disp.height/2:root.stage.stageHeight-b.disp.height/2;
   	vel[1]*=-1;
   }
}

function killDrag(evt) {
   root.stage.removeEventListener("mouseUp",killDrag);
   b.disp.addEventListener("mouseDown",startDrag);
   dragging = false;
}

function showB() {
   root.showRedrawBounds = (document.getElementById('bounds').checked);
}
function uniqueB() {
   root._uniqueChildBoundaries = (document.getElementById('unique').checked);
}