15. The system of claim 13 , the virtual machine comprising a first script engine used by the HTML rendering engine and a second script engine used by the vector graphics rendering engine, and the virtual machine configured to employ bridging objects between the first script engine and the second script engine.
15. The system of claim 13 , the virtual machine comprising a first script engine used by the HTML rendering engine and a second script engine used by the vector graphics rendering engine, and the virtual machine configured to employ bridging objects between the first script engine and the second script engine. 17. The system of claim 15 , the virtual machine configured to cross check security context information for objects of the first and second script engines to maintain security model integrity.