Here's a couple of alias to get a specific CID by server or network
Code:
alias net-cid var %a | scon -a if $1 == $!network $({ var %a = $cid },0) | return %a
alias serv-cid var %a | scon -a if $1 == $!server $({ var %a = $cid },0) | return %a

//scid $$net-cid(Undernet) { join #channel }
//scid $$serv-cid(irc.efnet.pl) { join #channel }
//if $net-cid(dalnet) { echo -a $ifmatch }