HELP! Simple Delete Records Mass Update Script

This script should be so straightforward to implement but it's returning an error that I can't figure out how to correct.

I created a new Mass Update SuiteScript to Delete Record types via Mass Update.

Here it is:

Function delete_records(recordType, recordID)
{
nlapiDeleteRecord(recordType, recordID); // Delete record
}

But, the error that is coming back once I run the mass update is: Error: UNEXPECTED_ERROR
missing ; before statement (DeleteRecords.js#1)

What am I missing???

Thanks!