title: Python Scraping JavaScript using Selenium and Beautiful Soup
body: <p>I'm trying to scrape a JavaScript enables page using BS and Selenium. 
  I have the following code so far. It still doesn't somehow detect the JavaScript (and returns a null value). In this case I'm trying to scrape the Facebook comments in the bottom. (Inspect element shows the class as postText)<br>
  Thanks for the help!</p>
  
  <pre><code>from selenium import webdriver  
  from selenium.common.exceptions import NoSuchElementException  
  from selenium.webdriver.common.keys import Keys  
  import BeautifulSoup
  
  browser = webdriver.Firefox()  
  browser.get('http://techcrunch.com/2012/05/15/facebook-lightbox/')  
  html_source = browser.page_source  
  browser.quit()
  
  soup = BeautifulSoup.BeautifulSoup(html_source)  
  comments = soup("div", {"class":"postText"})  
  print comments
  </code></pre>