There are some basic node functions:

• last() - returns the index of the last node in the current node set.

• position() - returns the index of the current node in the current node set.

• count(node-set) - returns the size of the node set.

• local-name(node-set?) - returns the local name of a node.

• namespace-uri(node-set?) - returns the namespace name of a node.

• name(node-set?) - returns the QName of a node.