array(
            'type' => 'raw',
            'name'=>'refunadable',
            'header' => 'Refund',
            'filter' => false,
            'value' => 'CfgCreditTransactions::model()->find("rel_objid = $data->objid") == null ?
                    CHtml::ajaxLink("Refund Tip",array("cfgCreditTransactions/refundTip", "id" => $data->objid))
                        :"Refunded"',
             'htmlOptions' => array('style' => 'text-align: center;'),
            ),