/**
  * Returns a commalist of sub record ids
  *
  * @param	integer		UIDs of record
  * @param	string		Additional WHERE clause, eg. " AND blablabla=0"
  * @param	string		$table: ...
  * @param	string		$where: ...
  * @return	string		Comma-list of record ids
  */
 function _getSubRecordsIdList($uidList, $level = 1, $table = 'tx_dam_cat', $where = '')
 {
     $rows = tx_dam_db::getSubRecords($uidList, $level, 'uid', $table, $where);
     return implode(',', array_keys($rows));
 }