on eventProcMouseDown me, tEvent, tSprID, tParam, tWndID 
  tService = me.getIGComponent("LevelList")
  if (tService = 0) then
    return FALSE
  end if
  tMultiplier = 1
  tIntParam = 0
  repeat while integerp(integer(tSprID.getProp(#char, tSprID.length)))
    tIntParam = (tIntParam + (tMultiplier * integer(tSprID.getProp(#char, tSprID.length))))
    tSprID = tSprID.getProp(#char, 1, (tSprID.length - 1))
    tMultiplier = (tMultiplier * 10)
  end repeat
  if (tSprID.getProp(#char, tSprID.length) = "_") then
    tSprID = tSprID.getProp(#char, 1, (tSprID.length - 1))
  end if
  return FALSE
end