on *:TEXT:!setevent*:#: {  
  if ($nick isop $chan || $nick ishop $chan) {       
    if (!$2) {
      .notice $nick Please enter an event to set!
    }
  }
}
else {
  set %event [ $+ [ $chan ] ] $2-
  msg $chan $nick has made a new event!Type !event to view it.
}