[Closed] New Script:Realtime Delay

After watch a few rigging reel using xsi or maya,I think that it would be much easier in animating if the rig has realtime delay effect.
But I was confuse how to do in max until I got a sample scene from zhangy(www.zhangy.com).
After study that scene,I wrote this script.I give a name:realtime spring.But it doesn’t have the “shake” effect,I mean when the dynamic object reach the driver object’s position it would stop.So it actually make a delay effect.

a demo video shows how to use it: http://www.seageo.com/Product/maxRTSscript/videotour.rar
and 2 video about making loop animation:
http://www.seageo.com/Product/maxRTSscript/makeloop1.avi
http://www.seageo.com/Product/maxRTSscript/makeloop2.avi
A fish swimming scene(max9): http://www.seageo.com/show/UPLOAD/fish(max9).zip
It’s preview animation: http://www.seageo.com/show/UPLOAD/fish.rar
My english is bad,so I recode the video in chinese,hope you understand the usage.
I am not good at R&D too,so it has much more space to improve.
Maybe someone would make it better.
ps:script tested in max8 and max9.
Thanks to:
Zhangy(make the basic idea)
Mingyu (for testing ang making fish example scene)

update version 1.1
download link: http://www.seageo.com/show/UPLOAD/RealtimeSpring1.1.rar
fixed:error when the scene has biped object.