Alphabetical Filtering

[leefish]

I am working on a forum set up and the owner would like to have the option to filter subjects alphabetically in addition to the filter by prefix I already have set up for him.

The current install has XThreads v1.53 and I already have a basic set of templates set for this forum.

Ideally, I would like to be able to offer an alphabet bar (like in the mybb member list) so that when the user clicks on say P s/he gets all the subjects starting with P.

I did consider setting up an XThreads Custom Field that would extract the FIRST letter of the post subject and then setting up a filter for it. I am not sure how to do that though.

Please can you advise how I can go about getting that first letter in a value so I can filter on it?

Thank you.

Link to forum: http://www.classifiedbilliards.com/mybb/...http://www.classifiedbilliards.com/mybb/forumdisplay.p