[squid-users] how to configure it in squid box

dear all i have squid machine , i want set every user who use my squid machine get some info like picture in header or popup like anonymizer . who do that in squid thx --sonjaya--

[squid-users] put banner

dear all i have proxy server with squid transparant , i want every user who use my proxy get my banner like popup or what ever when browse to some web , how i do that in squid . thank's --sonjaya--