WordPress plugin – Collapsing Objects 0.2
Collapsing objects wraps anything enclosed in expand tags into a collapsible div. This is a work in progress and may be a little bit messy due to me not having done much with PHP in a while and being new to wordpress.
Wrap your text/content in [expand] tags with a title eg:
[expand title=CLick me to try]This is my expanding content[/expand]
You MUST specify a title!
More – Plugin page on WP – http://wordpress.org/extend/plugins/collapsing-objects/