move-node-test.js

var sys = require('sys'),
    libxml = require('o3-xml');

var snippetXml = '<snippet><name>Sergey Belov</name><phone>+71111111111</phone><car>Ford Mondeo</car></snippet>',
    snippetDoc = libxml.parseFromString(snippetXml),
    xml = '<root><group><doc id="123"/></group></root>',
    doc = libxml.parseFromString(xml);

// throws exception
doc.documentElement.selectSingleNode('group/doc').appendChild(snippetNode.documentElement);