Node[] getElementsByTagNameNS(String namespaceURI, String localName);
namespaceURI
The URI that uniquely identifies the namespace of the element.
localName
The identifier that specifies the name of the element within its namespace.
An array (technically, a NodeList) of Element objects that are descendants of this element and have the specified name and namespace.
This method works like getElementsByTagName( ), except that the tag name of the desired elements is specified as a combination of a namespace URI and a local name defined within that namespace. This method is useful only with XML documents that use namespaces.
Document.getElementsByTagNameNS( ), Element.getElementsByTagName( )