Mouseover on threads displays first few sentences of post

[Sanni]

HI all,

My first post here. these forums look great, excellent job to all involved

I was just wondering how you guys have managed to popup a description box of the first few lines of a threads post when you moseover the thread title (such as what they have implemented here on vbulletin templates). It's a great addon and would love to be able to use it on my boards.

Any help is greatly appreciated