function generateTree() {
  d = new dTree('d');
  d.add(0,-1,'', '', '', '', '');
  d.add(1,0,'<strong>Digi Drop-in Networks</strong>','index.php?ti=1&a=27', 'Digi Drop-in Networks', '', 'tree/img/group_odd.gif', 'tree/img/group_odd.gif'); 
  d.add(2,0,'<strong>Digi Embedded</strong>','index.php?ti=2&a=25', 'Digi Embedded', '', 'tree/img/group_even.gif', 'tree/img/group_even.gif'); 
  d.add(3,0,'<strong>HMI/SCADA Software</strong>','index.php?ti=3&a=16', 'HMI/SCADA Software', '', 'tree/img/group_odd.gif', 'tree/img/group_odd.gif'); 
  d.add(4,0,'<strong>HMIs/CE Touchscreens</strong>','index.php?ti=4&a=20', 'HMIs/CE Touchscreens', '', 'tree/img/group_even.gif', 'tree/img/group_even.gif'); 
  d.add(5,0,'<strong>LiPPERT Embedded PCs</strong>','index.php?ti=5&a=26', 'LiPPERT Embedded PCs', '', 'tree/img/group_odd.gif', 'tree/img/group_odd.gif'); 
  d.add(6,0,'<strong>Matrix Orbital LCDs/VFDs</strong>','index.php?ti=6&a=6', 'Matrix Orbital LCDs/VFDs', '', 'tree/img/group_even.gif', 'tree/img/group_even.gif'); 
  d.add(7,0,'<strong>MEN Microelectronic</strong>','index.php?ti=7&a=28', 'MEN Microelectronic', '', 'tree/img/group_odd.gif', 'tree/img/group_odd.gif'); 
  d.add(8,0,'<strong>Rabbit Embedded</strong>','index.php?ti=8&a=3', 'Rabbit Embedded', '', 'tree/img/group_even.gif', 'tree/img/group_even.gif'); 
  d.add(9,0,'<strong>Reach Colour LCDs</strong>','index.php?ti=9&a=31', 'Reach Colour LCDs', '', 'tree/img/group_odd.gif', 'tree/img/group_odd.gif'); 
  d.add(10,0,'<strong>Vendors</strong>','index.php?ti=10&a=7', 'Vendors', '', 'tree/img/group_even.gif', 'tree/img/group_even.gif'); 
  document.write(d);
}