TOPIC: Message board

I am using JoomlaComment 3.25 as a simple message board.
Please have a look here: http://www.flotsam-and-jetsam.com/fanzone/messageboard.html

Sorry, meanwhile I replaced JoomlaComment with Nice Talk.

It works great, but the users want to have it more clearly arranged.

Anyone here who has an idea how to display only the first line and by click on it show the rest of the message/comment??

Greetings,
Tanja