Someone

on *:Join:#g_unit:{ 
  var %x = $calc($gettok($hget(Visits,$+($network,.,Count,.,$chan)),1,32) + 1) 
  var %y = $calc($gettok($hget(Visits,$+($network,.,$chan,.,$nick)),1,32) + 1) 

  if ($hget(Visits,$+($network,.,$chan,.,$nick))) { 
    notice $nick Welcome to $+($chan,$chr(44)) $+($nick,.) This is your $ord(%y) visit to $+($chan,.) Your last visit was on $+($gettok($hget(Visits,$+($network,.,$chan,.,$nick)),2,32),$chr(44)) $duration($calc($ctime - $gettok($hget(Visits,$+($network,.,$chan,.,$nick)),3,32))) ago. 
    hadd Visits $+($network,.,$chan,.,$nick) %y $asctime(mm/dd/yyyy) $ctime 
  } 
  else { 
    notice $nick Welcome to $+($chan,$chr(44)) $+($nick,.) You are the $ord(%x) person to join $+($chan,.) 
    hinc -m Visits $+($network,.,Count,.,$chan) 
  } 
}
;;this is a join script