changes:

added the slider x, y , z for finer control of the field lines to do.
color and arrangement to my usual formal
made field vectors a little more uniformly size
magnet color north=[color=red]RED [/color]and south=[color=blue]BLUE[/color]
strangely the author was mike, changed it to Wolfgang Christian, slightly edited by lookang
title Ejs Open Source Magnetic Dipole Field Vector & Field Lines 3D Model Java Applet