public function getCurrentTabSlug($sCurrentPageSlug = '')
{
$_sTabSlug = $this->getElement($_GET, 'tab');
if ($_sTabSlug) {
return $_sTabSlug;
}
$sCurrentPageSlug = $sCurrentPageSlug ? $sCurrentPageSlug : $this->getCurrentPageSlug();
return $sCurrentPageSlug ? $this->getDefaultInPageTab($sCurrentPageSlug) : '';
}