resize iframe

<script src="http://static.ak.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php" type="text/javascript"></script>
<script>
FB_RequireFeatures(["CanvasUtil"], function()
    {
      //You can optionally enable extra debugging logging in Facebook JavaScript client
      FB.FBDebug.isEnabled = true;
      FB.FBDebug.logLevel = 4;
 
 
      FB.XdComm.Server.init("http://farid.homeip.net:81/social_eval/xd_receiver.htm?v=2");
      FB.CanvasClient.startTimerToSizeToContent();
});
</script>
 
===============Errors=============
a184451065514_FB_RequireFeatures is not defined
a184451065514_window is not defined
[Break on this error] if (!a184451065514_window.FB) {