private function _setSubMenuPageByIndex($nOrder, $aSubMenuItem, $sMenuSlug)
{
$_nNewIndex = $this->getUnusedNumericIndex($this->getElementAsArray($GLOBALS, array('submenu', $sMenuSlug)), $nOrder, 5);
$GLOBALS['submenu'][$sMenuSlug][$_nNewIndex] = $aSubMenuItem;
}