/**
  * Get tail dependencies
  *
  * @param		string		entity
  * @param		string		target release
  * @param		array		ids
  * @return		array		array of array with keys "component", entity", "ids"
  */
 function getXmlExportHeadDependencies($a_entity, $a_target_release, $a_ids)
 {
     include_once "./Services/News/classes/class.ilNewsItem.php";
     $mob_ids = array();
     foreach ($a_ids as $id) {
         $mob_id = ilNewsItem::_lookupMobId($id);
         if ($mob_id > 0) {
             $mob_ids[$mob_id] = $mob_id;
         }
     }
     return array(array("component" => "Services/MediaObjects", "entity" => "mob", "ids" => $mob_ids));
 }