Forums Scripts & Popups newb question

{
  if $nick == Furon
  on :JOIN:#rebels.u21:/msg #rebels.u21 Welcome Furon, Leader of Rebels!
}
{
  if $nick == Pyrise
  on :JOIN:#rebels.u21:/msg #rebels.u21 Welcome Pyrise, Right Hand Man of Rebels!
}
{
  if $nick == commander
  on :JOIN:#rebels.u21:/msg #rebels.u21 Welcome Commander, Left Hand Man of Rebels!
}

(
on *:JOIN:#rebels.u21: {
  if $nick == Furon:/msg #rebels.u21 Welcome Furon, Leader of Rebels!
  else if $nick == Pyrise:/msg #rebels.u21 Welcome Pyrise, Right Hand Man of Rebels!
  else if $nick == commander:/msg #rebels.u21 Welcome Commander, Left Hand Man of Rebels!
}
}

on *:JOIN:#rebels.u21: {
  if ($nick == Furon) msg #rebels.u21 Welcome Furon, Leader of Rebels!
  elseif ($nick == Pyrise) msg #rebels.u21 Welcome Pyrise, Right Hand Man of Rebels!
  elseif ($nick == commander) msg #rebels.u21 Welcome Commander, Left Hand Man of Rebels!
}