JavaScriptComponentState question

I am busy connecting a javascript gantt via the code in the link with Vaadin. It is working and now I want to modify the gantt in a way so that I can change dates and duration in the gantt. The question I have is. Is it possible that Vaadin pickup the changed dates and duration so that I can update my resource-planning tool.

My gantt example: http://www.mycloudy.nl/Gantt/

Example code for the project: http://vaadinsnippets.blogspot.nl/2012/10/smooth-integration-of-vaadin-7-and.html

Chris Gerrist