ILC Folding Plugin

ILC Folding works with parent/children hierarchy of the Pages Widget. It will progressively reveal the children of each parent page. When you visit a page that has children, they will be reveal, keeping the next level children hidden.
You can see a demo at
http://www.ilovecolors.com.ar/ilctest/
Visit Page 2 to see their children. Child Page 2.1 works too.

1. Upload ilc-folding to the /wp-content/plugins/ directory
2. Activate the plugin through the ‘Plugins’ menu in WordPress

Which is the version of jQuery that this plugin uses?

The plugin enqueues the jQuery version included in WordPress. As of version 2.7 WP includes jQuery version 1.2.6. But WP 2.3.2 includes version 1.1.4 so it will probably be ok. I haven’t tested Folding with jQuery 1.3 yet. The version included with WordPress is safe to be used along with scriptaculous, mootools and other libraries.