Panelbar 

SlidingMenu is about Creative Layers. Using HTML inline tags to build up stacks of layers like eg. the VS.NET IDE Toolbox, SlidingMenu builds on the power of .Net templates to hide the DHTML and JavaScript difficulties moving the focus to the Creativ......

eStream PanelBar.NET is a flexible, affordable and easy to integrate component for building expandable/collapsible menu systems.

eStream PanelBar.NET allows developers to create powerful and attractive menus for their web sites or web application......

 Panelbar