title: jsPlumb and dynamically added containers
body: <p>Since there's no jsPlumb forum anywhere I hope someone here can help me.</p>
  
  <p>I want to generate this graph from some data I get from a JSON-API, what this API gives me are "devices" with a name and multiple sinks/sources, which I want to display as a list with the device-name in the first row.</p>
  
  <p>So I thought I'd use some JQuery to generate these divs and add the jsPlumb-endpoints I need to the device. Unfortunately I can only get endpoints on existing divs to work but not on my dynamically generated ones. Firebug shows me the error "myOffset is null" in the addEndpoint function and I don't really see anything that's wrong.</p>
  
  <p>I made a fiddle of it here: <a href="http://jsfiddle.net/2mcD2/4/" rel="nofollow">http://jsfiddle.net/2mcD2/4/</a></p>