total member replies in one thread

[Mr_P]

I'm unsure if this is a hack request , or simply a php issue

I need a query that will assign a variable to the total number of replies a member has made in that thread.

I want to put a entry in the postbit so that you can see how many replies the member has posted in that thread.

Not a rolling total, just the total, so if he posted 4 replies to that thread, you will see "4 replies" in the postbit on everyone post he makes in that thread.

Is this possible with a query ?

Thanks for all assistance given