acl anonym_2440 src 192.168.0.0/22 
acl site1_2440 url_regex -i rtfm.no 
acl site2_2440 url_regex -i dr.dk
acl site3_2440 url_regex -i www.arp.com
http_access allow anonym_2440 site1_2440 
http_access allow anonym_2440 site2_2440 
http_access allow anonym_2440 site3_2440                   
http_access deny anonym_2440