code: private boolean hasFallbackChildren()
    {
      for (ElemTemplateElement child = m_firstChild; child != null;
               child = child.m_nextSibling)
      {
        if (child.getXSLToken() == Constants.ELEMNAME_FALLBACK)
          return true;
      }
      
      return false;
    }
docs: Return true if this extension element has a <xsl:fallback> child element.
  
  @return true if this extension element has a <xsl:fallback> child element.