From this forum entry it appears that fb:chat-invite is not a valid xfbml tag, so to use it one needs to use serverfbml. However testing out
<fb:serverfbml>
<script type="text/fbml">
<fb:date t="1216170865" format="long_numeric" /> hello again
</script>
</fb:serverfbml>
results in
<fb:serverfbml> requires the "fbml" attribute.
So how can one get the functionality of fb:chat-invite when using xfbml and the javascript sdk. Is there a way to use fbml with an FB.ui dialog? If so how would that work.
Pointers appreciated.