$gid = CRM_Utils_Request::retrieve('gid', 'Positive', $this, FALSE, 0);
$action = CRM_Utils_Request::retrieve('action', 'String', $this, FALSE, 0);
$context = CRM_Utils_Request::retrieve('context', 'String', $this);
$gid = CRM_Utils_Request::retrieve('gid', 'Positive', $this, FALSE, 0);
$action = CRM_Utils_Request::retrieve('action', 'String', $this, FALSE, 0);
$context = CRM_Utils_Request::retrieve('context', 'String', $this);