also, as a complete aside, a more concise way of implementing your

KW_getScriptItemType

function would be to use an Object instead:

var itemTypeToRecordType = {
	'invtpart': record.Type.INVENTORY_ITEM,
	'noninvtpart': record.Type.NON_INVENTORY_ITEM,
	'assembly': record.Type.ASSEMBLY_ITEM,
	'kit': record.Type.KIT_ITEM
}

itemTypeToRecordType[type.toLowerCase()]