web toolbar: sand-boxed & embeddable in any site

A web toolbar with these requirements: 1- original bar is here: [login to view URL] 2- Assume that bar code will be hosted on another domain 3- can be added to any website with maximum 6 code lines 4- use techniques like iframes cross domain communication (example: meebo bar ) to offer a sandbox & safe environment for the bar. 5- Final result: the bar code (hosted on domain A) is injected in site B with very few javascript code and bar components are sand-boxed like here: [login to view URL]