var message="PIERRE POCS PHOTOGRAPHY! Alla foton är © Pierre Pocs. ";

function click(e)
{
  if (document.all)
  {
    if (event.button == 2 || event.button == 3)
    {
      alert(message);
      return false;
    }
  }
  else if (document.layers || document.getElementById)
  {
    if (e.which == 3)
    {
      alert(message);
      return false;
    }
  }
}

if (document.layers)
  document.captureEvents(Event.MOUSEDOWN);

document.onmousedown = click;