Selectable Window Scroll Fix by Sixth

#===============================================================================
# Using the pagedown button on a selectable window when there are more items
# than what can be displayed sometimes (most of the times, actually) will result
# in an "over-scrolled" window with lotsa empty space left on the bottom.
# This snippet prevents that from happening.
# Also if the window can't be scrolled up/down anymore (or at all), and the
# pageup/pagedown button is pressed, it will jump to the first/last item on the
# list unless it's already there.
# Put this at the top of your custom script list!
# Made by: Sixth
#===============================================================================
class Window_Selectable < Window_Base

  def cursor_pagedown
    if top_row + page_row_max < row_max
      self.top_row += page_row_max
      self.top_row = [self.top_row,item_max - page_row_max].min
      select([@index + page_item_max, item_max - 1].min)
    elsif @index != item_max - 1
      select(item_max - 1)
    end
  end

  def cursor_pageup
    if top_row > 0
      self.top_row -= page_row_max
      select([@index - page_item_max, 0].max)
    elsif @index != 0
      select(0)
    end
  end

end

class Scene_Title < Scene_Base

  def update
    super
  end

end
#==============================================================================
# !!END OF SCRIPT - OHH, NOES!!
#==============================================================================