private function _getTargetTabSlug($aSection)
{
$_sTargetTabSlug = $this->oUtil->getElement($aSection, 'tab_slug', $this->_sTargetTabSlug);
$_sTargetTabSlug = $_sTargetTabSlug ? $this->oUtil->sanitizeSlug($aSection['tab_slug']) : $this->oProp->getCurrentInPageTabSlugIfAdded();
return $_sTargetTabSlug;
}