Sample HTML code that a teacher might paste into a Haiku Learning Embed the Web™ block, and an example of the contents of the JS file, which will pass the login of the current user on to the widget.php page.

embed_the_web.html

<script type="text/javascript" src="https://your.domainna.me/path/to/widget.js">

widget.js

(function() {
  if(HaikuContext && HaikuContext.user) {
    var widgetURL = 'https://your.domainna.me/path/to/widget.php?';
    widgetURL += 'user=' + encodeURIComponent(HaikuContext.user.login) + '&';
    if(HaikuContext.user.import_id)
      widgetURL += 'import_id=' + encodeURIComponent(HaikuContext.user.import_id) + '&';
    document.write('<iframe src="' + widgetURL + '" height="200" width="200"></iframe>');
  }
})();