[Barty]

I don't know if there's a better way to do this but it seems to work

    def print_version(self, url):
        soup = self.index_to_soup(url)
        regex = re.compile(r'javascript:printPage\((\d+?)\)',re.I)
        atag = soup.find('a',attrs={'href':regex})
        if atag is not None:
            m = regex.search(atag['href'])
            if m:
                url = 'http://www.christianitytoday.com/ct/article_print.html?id='+m.group(1)
        return url

this load the original page and find the article id by parsing the file

Note: add

import re

to the start of your recipe