Untitled

function resizeFrame(){
    var frame = parent.document.getElementsById(window.me);
    frame.style.height = document.offsetHeight;
}

//init function
bunding.doSomeWork(callbackFunction);
...

function callbackFunction()
{
    //does some HTML output
    resizeFrame();
}

<!DOCTYPE html>
<html>
<head>
  <title>so-iframeResize</title>
  <script type="text/javascript" >

    onframeload=function(iframe) {
      var doc = iframe.contentWindow.document;
      iframe.style.height = Math.max(
        doc.getElementsByTagName("html")[0].offsetHeight,
        doc.body.offsetHeight // IE prefers this value
      ) + "px";
    };

  </script>
</head>
<body>
  <div id="page">
    <iframe src="about:blank" onload="onframeload(this)">
    </iframe>
  </div>
</body>
</html>