How to auto download Java3D/JOGL through jnlp?

 hello~~
 I have developed 2 3d application games for a long time. Now, I hope to use "java web start" to package them and hope that Java3D/JOGL can be  auto downloaded/installed  while someone is downloading my game, but I dont know how to set the jnlp file so that Java3D/JOGL can be downloaded? thank~~

Second thread in the Java3D topic:

http://192.18.37.44/forums/index.php?topic=5745.0

;D