This interface represents a notation declared in the DTD. A notation either declares, by name,
the format of an unparsed entity (see section 4.7 of the XML 1.0 specification [XML]), or is
used for formal declaration of processing instruction targets (see section 2.6 of the XML 1.0
specification [XML]). The nodeName attribute inherited from Node is set to the declared name
of the notation.
The DOM Level 1 does not support editing Notation nodes; they are therefore readonly.
A Notation node does not have any parent.
Note that this object is implemented and supported by the web
browser and results of its use may vary.