newreply redirect - how?

[MacMorag]

I'm trying to redirect a user after they have just replied to a post, to a specific page. The URL of this specific page varies, so I have to pass a variable in the URL formed by newreply.php. The variable fails to pass because it gets ignored by the "redirection" page.

I have hacked newreply.php where it constructs the output URL, but I have a feeling that I have to amend the "newreply_post_complete" hook too. Any ideas?

I did have a look at the redirection template - but that didn't throw up any obvious areas to change.

Basically, I want user to be directed to my newURL instead of 'showthread.php......'.

All help gratefully received.