Then I would definitely use XSLT.  DOM methods in javascript, especially with 
large documents, are pretty slow, but MSXML 5 runs them pretty quickly in an 
XSLT.

If you use the XSLTemplate Processor, you can set parameters, and direct the 
result of the transformation to a DomDocument object, that you can 
subsequently use in your InfoPath form.  

I have a variety of examples of using javascript and the XSLT Template 
processor, if you need an example.  I was going to add a new dynamic filter 
and sort example to my website that uses the faster approaches that I 
mentioned, but haven't gotten around to it yet.  I haven't tried using the 
XSLT from within an InfoPath document yet, but I've used DOM methods to 
update the data source in an InfoPath form as you've done, and I don't see 
why it couldn't be done with XSLT.  

Regards,
Mike Sharp

http://rdcpro.com

"Greg Collins [InfoPath MVP]" wrote:

> I didn't get to read your whole response as I have to take off for the day, but to answer your last question: this is JavaScript in InfoPath.
> 
> -- 
> Greg Collins [InfoPath MVP]
> Please visit: http://www.InfoPathDev.com
> 
>