on *:connect: {
 if (!$network) {
  if ($server == <myserver>) { scid $cid myoper } 
  else { halt }
 }
elseif ($network) {
  if ($network == <mynetwork) { scid $cid myoper }
 }
}
alias -l myoper { oper MyLogin MyPass } 

To make it useful both ways. I could make a giant long script for it, but I wont. :P