public void getinformation ()
	// update the comment, when leaving the position
	{
		ListElement la = Pos.node().actions();
		Action a;
		clearsend();
		while (la != null)
		{
			a = (Action)la.content();
			if (a.type().equals("C"))
			{
				if (GF.getComment().equals(""))
					Pos.node().removeaction(la);
				else a.arguments().content(GF.getComment());
				return;
			}
			la = la.next();
		}
		String s = GF.getComment();
		if ( !s.equals(""))
		{
			Pos.addaction(new Action("C", s));
		}
	}