HOWTO - Reach the API from out of a dialog

echo '
<script type="text/javascript">
<!--
var oEditor = window.parent.InnerDialogLoaded();
var FCK = oEditor.FCK;
var sven = FCK.GetXHTML( true );
document.write(sven);
-->
</script>
';

what am I doing wrong? =)

discussion on this problem can be found on http://sourceforge.net/forum/forum.php? ... _id=257180

http://docs.fckeditor.net/FCKeditor_2.x/Developers_Guide/Customization/Plug-ins/Popup