title: How to implement Canvas for spidermonkey
body: <p>Could anyone point me in the direction of how to to get a Canvas working with SpiderMonkey?</p>
  
  <p>I intent to make a canvas implementation of my own. But I couldn't quite figure out how I can connect my canvas class with SpiderMonkey.</p>
  
  <p>I am in need of guidance. Please help.</p>