How to duplicate tags function

[Cerbero1000]

Well, I need to duplicate tags system to have a double separate system.
What files and tables I need to add/modify?

Files:
showthread.php
includes/functions_newpost.php

Templates:
showthread
newthread

Table:
tag

Are there other files, teplates or database tables I need to working on?

[Lynne]

There is also the table tagsearch and tagthread. And then in the table thread is the field taglist.

[Cerbero1000]

Do I need to modify the newthread.php file too?
Thanks

[Cerbero1000]

Up.