XML Name Space Definition

Hi
I want to export some data into a xml file. The receiving system needs processing instructions and name space definition.

I use the ffw code for the headers:

CREATE(XMLDoc);
XMLProcessingInst:=XMLDoc.createProcessingInstruction('xml','version="1.0" encoding="iso-8859-1"');
CurrNode := XMLDoc.appendChild(XMLProcessingInst);
CurrNode := XMLDoc.createElement('B-EXPORT');
CurrNode := XMLDoc.appendChild(CurrNode);
XMLDOMMgt.AddAttribute(CurrNode,'xmlns',
'xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="myschema.xsd"');
....

Unfortunatly the xml file looks like this:
<?xml version="1.0" encoding="iso-8859-1" ?>
- <B-EXPORT XMLNS="xsi="http://www.w3.org/2001/XMLSchema-instance&quot; xsi:noNamespaceSchemaLocation="myschema.xsd"">

...instead of this...

<?xml version="1.0" encoding="ISO8859-1" ?>
- <B-EXPORT xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance&quot; xsi:noNamespaceSchemaLocation="myschema.xsd">


Note:
Instructions seem to be ok, but declaration of name space is different.

Any ideas? Many thanks in advance.
Thomas