Contextual Menu Control for ASP.NET

Can anyone recommend a library or a guide in the right direction as to where can I find a Contextual Menu Control for ASP.NET similar to the ones Google uses in its Google Docs or Google Mail web apps ? I looked at the ASP.NET AJAX Control Toolkit as of Sept 2009 and there seems t开发者_Python百科o be none willing to create one.

A contextual menu is just a div containing a few links, positioned at the mouse cursor, and shown on a right click.

You might want to read Why isn’t “right click” more used in web applications before you do it though.