Hi Martin, as for the javascript part, there is code for this in smokeping ... getting more meta information from rrdtool is also implemnted through the graphv call. check it out! cheers tobi -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900