ircII help: on channel_nick

Usage: ON [#|+|-|^|&|@]CHANNEL_NICK [-|^]"<channel> [<nick>]" [action]
  This is activated whenever someone on a channel you are on
  changes their nickname. The parameters for this function are:
    $0  The channel from which that person has changed nick
    $1  Original nickname for that person
    $2	New nickname for that person