这是我使用的一些代码..它使用jQuery,但我认为你可以弄清楚你需要什么,并使用你的库来做同样的事情.

<script type="text/javascript">
  function poll(){
    $.getJSON('/updates',function(json){
      //reconnect since we successfully received data and disconnected
      poll();

      //add something here to do whatever with the recieved data
    });
  }
  /*call the poll function after document has loaded with setTimeout
  if called before the document finishes loading completely it will
  cause a constant loading indication*/
  setTimeout(poll,1);
</script>