Question

I want to add a always-on-top header like the new twitter does.
Explanation: When the user scrolls down the page, I want the header to stay on top of the window.

Somebody know a script that does that? Or can target me how can I do it?

Answer 1

You can use position: fixed; on the header.

<div id="header">
content goes here.
</div>

and the CSS:

#header { position: fixed; z-index: 9999; top: 0; left: 0; }