Floating Menu

We use Quickmenu Pro Version 6 from Opencube to build all our menu's but we have a project with very long pages. We need someone to create either Javascript or CSS functionality which we can add to the content created by Quickmenu which will allow the menu to float up and down as the viewer scrolls the page. Anything created must stand alone so we can add it to any menu we build and must be fully standards compliant and cross browser compatible back to Internet Explorer 6. Please indicate a timescale when you place your bid.