i dont know how.. cvan you help

Code:
dialog test {
  title "New Project"
  size -1 -1 75 13
  option dbu
  text "Korn - Falling away from me", 1, 2 2 73 11
}
on *:dialog:test:init:*: {
  var %sname Korn - Falling away from me
  timerscroll 0 1 did -r test 1 $left(%sname,1) | did -a test 1 $right(%sname,1)
}
on *:dialog:test:close:*: {
  timerscroll off
}