new_contents: import os, sys, urllib, re;
  #form urlparse import urlparse;
  from BeautifulSoup import BeautifulSoup
  
  def  crawl_list(CIK):
  	root_url="http://www.sec.gov"
  	url= "http://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=%s&type=DEF+14A&dateb=&owner=include" % (CIK) ;
  	
  	# Retrive web page data
  	dlist_page_html = urllib.urlopen(url).read();
  
  	list_soup = BeautifulSoup(dlist_page_html);
  
  	
  	#tmp_page = soup.find("td", {"nowrap": "nowap"});
  
  	page_list = list_soup.findAll(id="documentsbutton");
  
  	for tmp_page in page_list:
  		#print root_url + tmp_page['href'];
  		obj_page = urllib.urlopen(root_url + tmp_page['href']).read();
  		my_soup = BeautifulSoup(obj_page);
  		txt_obj =  my_soup.find('a', href=re.compile('[A-Za-z0-9]*\.txt'));
  		print root_url + txt_obj['href'];
  
  if __name__=="__main__":
  	crawl_list("0001326801"); 
subject: implement the crawler