How to get internal content of jsf component?

I have a component's library and this library has Chart component. Chart is ac开发者_开发百科tually a jpg image.

I need to access this image. I need some basic tips where to search that image, maybe with examples based on some wellknown libraries like Tomahawk.

You could try using something like jQuery to help you acess the html page's dom structure after the page is rendered via javascript. Getting the image will be as simple as looking up a component by Id