@Christiaanj;
With the enlarging of the graphic, additional scale marks have been added, along with an overlaid time scale in each section. The adding of the cross-hairs enables a closer examination of any points of interest with the x:y co-ordinates now easily readable.
To save for offline use, right click outside the graphic (pale blue background) and Save As (webpage complete). The javascript file that generates the cross-hairs will also be saved.