$contactId = CRM_Utils_Request::retrieve('cid', 'Positive', $this);
$action = CRM_Utils_Request::retrieve('action', 'String', $this);
$this->_id = CRM_Utils_Request::retrieve('id', 'Positive', $this);
$contactId = CRM_Utils_Request::retrieve('cid', 'Positive', $this);
$action = CRM_Utils_Request::retrieve('action', 'String', $this);
$this->_id = CRM_Utils_Request::retrieve('id', 'Positive', $this);