need accordion style vertical menu for sidebar of a wordpress site

i am looking to have an accordion style menu built that will be placed on the sidebar of a wordpress site as a text/html widget. please refer to the following site as an example of how the menu should function pretty much exactly: [login to view URL] the menu should be preferably built in javascript or jquery and could be managed somewhat easily by adding or removing HTML list items to an unordered list. however i am open to other ideas as long as the menu can be easily maintained by someone with a little bit of HTML knowledge. thank you. ## Deliverables i will be able to supply CSS style information if needed or i can take care of this on my own once the menu is functioning. I can supply some sample links just to help the structure of the menu get underway. Once again, I am open to how this project should proceed based on the programmer's previous experience.