(Ajax?) daily RSVP list for forum members

IN PROGRESS
Bids
2
Avg Bid (USD)
$30
Project Budget (USD)
$30 - $100

Project Description:
I have a vbulletin forum. I have a live chat on the forum that is open from 8 PM to midnight.

I would like to allow members to rsvp, to tell other members that they are going to be in chat tonight.

Only registered members should be able to add themselves to the list, and they can only add their own name.

I'm open to ideas on how to accomplish this, but it should be a fairly simple job.

Skills required:
PHP
About the employer:
Verified
Public Clarification Board
Bids are hidden by the project creator. Log in as the employer to view bids or to bid on this project.
You will not be able to bid on this project if you are not qualified in one of the job categories. To see your qualifications click here.