d = new dTree('d');
d.add(0,-1,'Holden Family','index.html', '', '_self');
d.add(1,0,'John: on the Internet','johnontheinternet.html', '', '_self');
d.add(2,0,'John: web sites','johnwebsites.html', '', '_self');
d.add(3,0,'Old material','oldmaterial.html', '', '_self');
d.add(4,0,'Amazon','amazon.html', '', '_self');
d.add(5,0,'Jes','jes.html', '', '_self');
document.write(d);