def get_background():
s = 'http://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1'
resp = fetch_url(s)
d = json.loads(resp[1])
bg_url=d['images'][0]['url']
#bg_url = 'http://s.cn.bing.net/az/hprichbg/rb/HerzliyaIsrael_ZH-CN12724786713_1366x768.jpg'
return bg_url
def bing_desktop():
s = 'http://cn.bing.com/HPImageArchive.aspx?format=js&idx=0&n=1'
resp = fetch_url(s)
response.set_content_type(resp[0])
return resp[1]
