This modification will allow your users to Hide/Show their contacts from their account page.
This is AJAX function and will not refresh your browser.
When you click anywhere on the header, everything within the panel will expand/collapse, depending the current state it's at.

You can customize this to your website's look through the stylesheet.

This has been tested in:
- Firefox
- Internet Explorer
- Netscape
- Google Browser

Installation and support is available.