remove header comment from Xerces output

[Shane Spraggs]

Hi,

I'm using Xerces to produces XML output. No matter what I do, the first
line is always the Xerces comment: <?xml version="1.0" encoding="UTF-16"
standalone="no" ?>

I need to get rid of it, since the app I'm passing the XML to doesn't
ignore it.

I'm building the doc using DOMDocument and I'm writing the doc using
DOMWriter.

Can someone tell me how to remove it?

Thanks.