NamespaceNodeMap = function(ownerDocument, parentNode) {
    this.NamedNodeMap = NamedNodeMap;
    this.NamedNodeMap(ownerDocument, parentNode);
    __setArray__(this, []);
}
@class  NamespaceNodeMap -
     used to represent collections of namespace nodes that can be
     accessed by name typically a set of Element attributes

@extends NamedNodeMap

@param  ownerDocument : Document - the ownerDocument
@param  parentNode    : Node - the node that the NamespaceNodeMap is attached to (or null)