/**
* function __construct
* <pre>
* Initialize the Class ...
* </pre>
* @param $accountgroup_id [INTEGER] value used to initialize the list.
* @param $sortBy [STRING] the field name to sort list by
* @return [void]
*/
function __construct($accountgroup_id = -1, $sortBy = '')
{
$searchManager = new RowManager_ViewerManager();
// NOTE: if you need to narrow the field of the search then uncommnet
// the following and set the proper search criteria.
$searchManager->setValueByFieldName("accountgroup_id", $accountgroup_id);
//$searchManager->setValueByFieldName('module_isCommonLook', '1' );
$searchManager->setSortOrder($sortBy);
$this->resultSet = $searchManager->find();
}