Forums Scripts & Popups Help with very simple script

this is the script i used to use when it would just play to one channel. Can someone help me modify it so it amsgs instead of just msging to one channel?

alias read_next_help {
var %f = helpfile.txt , %lines = $lines(%f) , %chan = $1
inc %help.lread
if (%help.lread > %lines) { set %help.lread 1 }
if ($read(%f,%help.lread) != $null && $me ison %chan) { msg %chan $read(%f,%help.lread) }
}