repaint(0,textArea.lineToY(firstLine) + fm.getMaxDescent() + fm.getLeading(),
repaint(0,textArea.lineToY(firstLine) + fm.getDescent() + fm.getLeading(),
	public final void invalidateLineRange(int firstLine, int lastLine)	{		repaint(0,textArea.lineToY(firstLine) + fm.getMaxDescent() + fm.getLeading(),			getWidth(),(lastLine - firstLine + 1) * fm.getHeight());	}