Any way in as3 to get the final html (post-javascript) of a page?

I am currently using URLLoader to get the source code of a webpage, problem is, I need the source that is is created after its javascript runs (what you would actually see in a browser), not the true source code.

I can manually see this Post-Javascript source by loading the page in firefox and then putting “javaScript:” followed by my javascript function in the URL area. It shows me the CURRENT source of the page.

Any way in as3 to get the final html (post-javascript) of a page?