In order to save space and display the content only when requested, expanding/collapsing panels are used widely.
Using jQuery, such a functionality is very easy to implement with methods like
hide and several others.
jQuery-Collapse is an ultra-lightweight (<1kb minified) plugin built specifically for this case with added features.
It allows us to define the HTML elements to be hidden and displayed when needed with a simple function that has callbacks for integrating custom events.
There is also cookie support which remembers the state of the content panels and displays them accordingly when the page is re-visited.
The plugin is also designed with WAI-ARIA in mind that helps the web pages being more accessible to people with disabilities.
And, it is also cross-browser, completely tested in major browsers (including IE6).