GanttChat does not load

i was trying to work your sample tutorial, but the ganttChat does not load!
there is my page jsf:

[code]<?xml version='1.0' encoding='UTF-8' ?>

Facelet Title Hello from Facelets Simple read-only chart:
Mouse-hover some task to see the description.


well i use netbeans and jsf pages
there is any idea to resole my problem??

Can you run our samples on your site?