Hide/Show a frame like google reader?

[dulldull]

In Google Reader (www.google.com/reader), they let users to hide/show a frame. I've searched in some ajax showcase websites to find out if there's a demo script for it, but i couldn't get it.

I'm still not sure if it's ajax. Can anyone tell me which keyword should I look for when I'm looking for a script with similar effect?

Thanks a lot!

[whoisgregg]

The easiest way to show/hide something in the page is simply to toggle it's CSS display: setting between 'block' and 'none'.

Typically people ask about how to do this for a <div> but the same concept applies for a frame or pretty much any element.