def GetScheduleDates( soup ):
	"""Given a BeautifulSoup object corresponding to the artechock.de web
	page, extract the start and end dates for the current schedule.
	"""
	
	h2 = soup.find_all("h2")
	for h2obj in h2:
		txt = h2obj.getText()
		if txt.find("Filme im Originalton") > -1:
			p = txt.split(":")[1]
			pp = p.split()
			startDate,endDate = pp[1],pp[4]
			return startDate + "-" + endDate
	return None