function generateRedirectUrl(pageNr)
{
    <?php
      $content_id = ff_getParam('ff_contentid');
      if (is_numeric($content_id))
        return "var id =".$content_id."; ";
      else return "var id = 'not_called_by_mambot?';";
    ?>
    <?php
      global $Itemid;
      return "var Itemid =".$Itemid."; ";
    ?>

   return '{mossite}/content/view/' +
          escape(id)+
      '/' +escape(Itemid) +
      '?ff_page=' +escape(pageNr)

} // generateRedirectUrl

.........................

function ff_ok_button_action(element, action)
{
   ...................
   ff_redirectParent(generateRedirectUrl(1)+
     '&ff_param_compButtonPressed=1' +
     '&ff_param_f1=' +escape(f1) +
     '&ff_param_f2=' +escape(f2)
   );
}

function GenerateRedirectUrl(pageNr)
{
    <?php
      $content_id = ff_getParam('ff_contentid');
      if (is_numeric($content_id))
        return 'var id ='.$content_id.'; ';
      else return "var id = 'not_called_by_mambot?';";
    ?>
    <?php
      global $Itemid;
      return 'var Itemid ='.$Itemid.'; ';
    ?>

   return '{mossite}/index.php?view=article&id=' +
          escape(id)+
      '&option=com_content&Itemid=' +Itemid +
      '&ff_page=' +escape(pageNr);
/*
or
return '{mossite}/index.php?option=com_content&view=article&id=13%3Aleesbril&catid=17%3Azintuigen&Itemid=33&ff_page=1';
or
return '{mossite}/index.php?option=com_content&view=article&id=13:leesbril&catid=17:zintuigen&Itemid=33&ff_page=1';
or
return '{mossite}/index.php?option=com_content&view=article&id=13&catid=17&Itemid=33&ff_page=1';
return '{mossite}/index.php?option=com_content&view=article&id=13&Itemid=33&ff_page=1';
*/

} // rvbCommon_GenerateRedirectUrl