GUI protocol extension

	inputgrid button_id startx starty cell_width cell_height nbcellw nbcellh


		$track=1
		$highlit=1

	drawtext x y "text" anchor w d

		x,y,w,h describe a rectangle in which the text must be drawn

		anchor represent a point in the rectangle. the text is
		drawn relative to the anchor point. The possible
		values for the anchor points are linked to some semantics

		1: Top aligned, left aligned
		2: Vertically centered, left aligned
		3: Bottom aligned, left
		4: Ascent aligned, left
		5: Top aligned, centered
		6: Vertically centered, centered
		7: Bottom aligned, centered
		8: Ascent aligned, centered
		9: Top aligned, right
		10:
		11:
		12:

	Notebook page focus

		The application must know which page is currently visible, so the next
		and previous button works correctly.		

Agenda

	Dependancies

		Think of this like the RPM dependancies. The agenda could
		be used to enter meeting but as well, to enter tasks delivery.
		A tasks may be associated with the completion of another.
		The worker often sees a huge amount of things to do and yet
		can't decide which one he should perform first. By using
		dependancies and color code, the agenda could be used to
		tell what to do first.

		This lead to a multi-view agenda: Meeting view, task view
		team view and so on.