This is a dynamically populated CSS menu. It uses CSS to accomplish a nice cascading menu effect.
This is a style Fiddle for a windows style bar that will only be using HTML and CSS to look right.
This fiddle is designed to show how to position elements using CSS. If you need to do put an element somewhere on your page, this may be what you are looking for.
Dojo (nightly), HTML, CSS, JavaScript
Dojo 1.9.0, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript