<html>
   <head>
      <title>Box2dWeb Demo</title>
   </head>
   <body onload="init();">
      <canvas id="canvas" width="600" height="400" style="background-color:#333333;" ></canvas>
   </body>
   <script type="text/javascript" src="Box2dWeb-2.1.a.3.min.js"></script>
   <script type="text/javascript">
      
      function init() {
         var   b2Vec2 = Box2D.Common.Math.b2Vec2
            ,  b2AABB = Box2D.Collision.b2AABB
         	,	b2BodyDef = Box2D.Dynamics.b2BodyDef
         	,	b2Body = Box2D.Dyn