on *:Invite:*: { 
  if ($nick == %ignorenick) { halt }
  else { dialog -v,-md answer.system answer.system  | set %msgnick $nick | did -o answer.System 4 1 $chan | did -o answer.System 5 1 $nick } 
}
Dialog answer.System {
  Title "VenomanswerSystem"
  Size -1 -1 40 82
  Option dbu
  button "yes ", 1, 0 0 37 15, flat 
  button "no ", 2, 0 18 37 15, flat 
  button "ignore ", 3, 0 36 37 15, flat 
  edit ,4,0 50 37 10, read
  edit ,5,0 62 37 10, read
}

on *:dialog:answer.system:sclick:*: {
  if $did == 1 { join %chan | dialog -x answer.system } 
  if $did == 2 { notice %msgnick no thank you | dialog -x answer.system }
  if $did == 3 { set %ignorenick %msgnick | dialog -x answer.system }
}