using Scrapy to get hidden elements
===

I'm using scrapy to get comments from articles.    

For example, [testPage](http://techcrunch.com/2012/07/28/not-that-kind-of-filthy-get-your-mind-out-of-the-gutter/) has comments at the end of the article.  

How would I be able to get access to those comments?  
It appears that the html downloaded by scrapy does not contain references to the comments.  

Thanks in advance.