Copying a Record

Hi, im trying to write a suitescipt to copy a record to a new one. In this instance its a credit memo, but i cannot get it to work at all.

/**

 * @NApiVersion 2.1

 * @NScriptType ClientScript

 */

define(['N/record','N/ui/dialog'],

    function (record,dialog) {

        var exports = {};

        function pageInit(context) {

            // Do Nothing

        }    

        function onButtonClick() {  

            var recordID = context.newRecord.id;              

            dialog.alert({

                title: "Record ID",

                message: recordID

            })

            var copyRecord = record.copy({

                type: record.Type.CREDIT_MEMO,

                id: recordID,

                isDynamic: true

            });

            var submitCopyRecord = copyRecord.save({

                enableSourcing: true,

                ignoreMandatoryFields: true

            })

        }

        exports.onButtonClick = onButtonClick;

        exports.pageInit = pageInit;

        return exports;

    }