Duplicate inline Javascript

Investigating slow pages in http://drupal.org/node/1235408. Found the Superscript inline Javascript twice. I assume part of the slowdown would be the Superfish function running twice. As a quick fix, I added the following code and the Javascript appeared once instead of twice.

function superfish_contents($delta = 0) {
  global $language;
  static $superfish_javascript_added;

    if(empty($superfish_javascript_added))
    {
    $superfish_javascript_added = true;
    drupal_add_js($javascript, array('type' => 'inline', 'weight' => 100));
    }

The CSS appears only once. I think Drupal ignores duplicate inclusion of files but not duplicate inclusion of inline code. Perhaps the duplicate prevention could be wrapped around the whole process to reduce duplicate processing overhead.

The page uses fusion starter subtheme with only a few changes to the CSS. None of the other processing is changed. Why would the superfish_contents function fire twice?