void removeAttributeNS(String namespaceURI, String localName);
namespaceURI
The unique identifier of the namespace of the attribute, or null for no namespace.
localName
The name of the attribute within the specified namespace.
This method may throw a DOMException with a code of NO_MODIFICATION_ALLOWED_ERR if this element is read-only and does not allow its attributes to be removed.
removeAttributeNS( ) works just like removeAttribute( ), except that the attribute to be removed is specified by name and namespace instead of simply by name. This method is useful only with XML documents that use namespaces.
Element.getAttributeNS( ), Element.removeAttribute( ), Element.setAttributeNS( )