Creates a namespace node.
Permitted parent elements: any XSLT element whose content model is sequence-constructor; any literal result element
Defines the name of the namespace node (that is, the namespace prefix).
The string value of the namespace node (that
is, the namespace URI) may be given either by a
The semantics parallel xsl:attribute which creates attribute nodes.
It is rarely necessary to use this instruction explicitly. The only cases it is needed are where the namespaces to be included in the result document are not known statically, and are not present in the source document.