Function checkLangInClients

Function checks if a language is associated with a given list of clients

Package: Core\Backend
Copyright: four for business AG <www.4fb.de>
License: http://www.contenido.org/license/LIZENZ.txt
Author: Martin Horwath
Author: Murat Purc <murat@purc.de>
Located at includes/functions.rights.php

Parameters summary
`array`	`$aClients`	- array of clients to check
`integer`	`$iLang`	- language id which should be checked
`array`	`$aCfg`	- CONTENIDO configruation array (no more needed)
`object`	`$oDb`	- CONTENIDO database object (no more needed)

Return value summary
`boolean`	- status (if language id corresponds to list of clients true otherwise false)