// delete all old datasets from the etchat_useronline table (session table)
if (!empty($_SESSION['etchat_'.$this->_prefix.'config_reloadsequenz']))
$this->dbObj->sqlSet("DELETE FROM {$this->_prefix}etchat_useronline WHERE etchat_onlinetimestamp < ".(date('U')-(((int)$_SESSION['etchat_'.$this->_prefix.'config_reloadsequenz']/1000)*4)));
// Get all Session from the etchat_useronline with all user sessions