Are you sure irc.lv is the name of the network?

On that network, type //echo -a $network

and let me know what it says.

Here's an example:
Code:
on *:text:*:#chat:{
  if $network == efnet {
    ; find the cid of network irclv where you are on #channel
    scon -at1 if ($network == irclv) && ($me ison #channel) var % $+ cid = $!cid
    if %cid { 
     ; Set the active connection to network irclv
      scid %cid
     ; Relay the message on  #channel
      msg #channel Relay from #chat on Efnet -> $+(<,$nick,> :) $1-
     ; Reset the active connection to the original one
      scon -r
    }
  }
}