floating toolbar

In traditional computer applications, it is a small screen that holds a set of navigation tools (or programming commands) for use in moving and changing things on your screen. These tools are arranged on a bar, often thought of as another window, which can be "dragged" with your mouse pointer anywhere on the screen. On the Web, the toolbar is your browser, that screen you interact with when you're online. A floating toolbar sometimes appears when you click on something; it contains a link or something for you to do and has the appearance of "floating in cyberspace." On Web sites, this is generally accomplished using JavaScript or DHTML.

The NetLingo Pocket Dictionary on NetLingo.com is one example of a floating toolbar.