[Plugin: jQuery Collapse-O-Matic] Use Trigclass to highlight title, but only on expand?

Hi there,
I think I need to use Trigclass, but not sure. Here’s the page I’m working on. I have it so that the text turns red on hover, but what I’d really like is for the selected title to stay red when that element is expanded. Would you kindly point me in the right direction?

Thanks!

http://wordpress.org/extend/plugins/jquery-collapse-o-matic/