If you're using ruby, I've found watir (http://watir.com/ http://watir.com/) to be very nice to use. There might be better alternatives now but it made my life

If you're using ruby, I've found watir (http://watir.com/ http://watir.com/) to be very nice to use. There might be better alternatives now but it made my life easier when I had to scrape a bunch of our supplier's crappy B2B sites that required JavaScript.