private static function _StoreCommonAnalytes($caller, $sessionKey, $analyteObj)
 {
     if (count(CommonHelper::GetValueInSession($caller->user(), $sessionKey)) === 0) {
         $dal = $caller->managers()->getManagerOf("Analyte");
         $analytes = $dal->selectMany($analyteObj, "");
         CommonHelper::SetValueInSession($caller->user(), $sessionKey, $analytes);
     }
 }