Using nlapiMergeTemplate with nlapiSendEmail

Hi Folks,

I've read a number of post relalting to nlapiMergeTemplate and nlapiSendEmail but can't seem to get it working how I want.

Basically I have an html template which I have formatted and imported into NetSuite (id = 1).

I am sending an email from a case form but want to include additional fields from the case form that are not available in the standard NetSuite template like the NLSTATUS and NLTITLE for example.

This is the following code I am using:

/////////////////////////////////

var recordType = nlapiGetRecordType();
var recordID = nlapiGetRecordId();
                      
                var records = new Array();
                records['recordtype'] = recordType;
                records['activity'] = recordID;


emailMessage = nlapiMergeTemplate( 1, recordType, recordID);