window = (vWindow) w; vWindow.setCurrent(window);
value = w; vWindow.setCurrent((vWindow) value);
	public vVariable Assign(vValue w) {	// assign		if (w != null && !(w instanceof vWindow)) {			iRuntime.error(140, w);		}		window = (vWindow) w;		vWindow.setCurrent(window);		return this;	}