multiLanguageSets.forEach(function (sampleCollection) {
      // Create selector element if not existing
      if (
        sampleCollection.length > 1 &&
        (sampleCollection[0].previousElementSibling == null ||
          !sampleCollection[0].previousElementSibling.classList.contains(
            "multi-language-selector"
          ))
      ) {
        var languageSelectorFragment = document.createDocumentFragment();

        Element next = heading.nextElementSibling();
        while (true) {
            if (next == null || next.tagName().equals("h2")) {
                Element section = heading.before("<section class='topic'/>").previousElementSibling();
                Elements inSectionElements = new Elements(inSection);
                section.html(inSectionElements.outerHtml());
                inSectionElements.remove();