[xsl] XML schema namespace question

["Mark Wilson" <mark@xxxxxxxxxxxx>]

As Michael Kay suggested, I am trying to my my XSLT schema aware. However, I 
am somewhat confused about how namespaces are identifies and placed in 
schemas and how that relates to instances. Take the simple schema in Listing 
1 and an instance of it in Listing 2. Consider a namespace prefix of "ko" 
and a locator of "www.knihtisk.org". I think I understand (but am not sure) 
how it is presented in the instance (see listing 2) , but do not know how 
the namespace is related to (presented in) the schema.

Any help appreciated,
Mark


Listing 1.
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema";>

<xs:element name="WapperAroundAllButGlobals">
   <xs:complexType>
       <xs:sequence>
           <xs:element name="One" type="xs:string"/>
           <xs:element ref="Global"/>
       </xs:sequence>
   </xs:complexType>
</xs:element>

   <xs:element name="Global">
   <xs:complexType>
       <xs:sequence>
           <xs:element name="Two" type="xs:string"/>
           <xs:element name="Three" type="xs:string"/>
       </xs:sequence>
   </xs:complexType>
   </xs:element>

</xs:schema>

Listing 2
<?xml version="1.0" encoding="UTF-8"?>

<WapperAroundAllButGlobals 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
xmlns:ko=http:/www.knihtisk.org>
   <One>stuff</One>
   <Global>
       <Two>more stuff</Two>
       <Three>yet even more stuff</Three>
   </Global>
</WapperAroundAllButGlobals>