Code:
on @*:text:*:#channel:{
set %quiet $ctime
.timerquiet 0 1800 checktime
}
alias checktime {
var %shhh = $calc($ctime - %quiet)
if (%shhh > 1800) msg #channel your msg here
}

I think this will work, I didn't test it

Last edited by MikeChat; 08/05/05 10:32 PM.