Hi,
using animated gifs would be only possible in the krpanoJS HTML5 viewer,
but even there I would not recommend doing that - they make the viewer slower,
it's faster and better to use xml-animated images,
e.g. take a png (better than gif because of the 8bit-alpha-channel and more colors),
and put all images in a vertical or horizontal strip,
and in the xml, the "crop" setting can be used to cut-out only one frame, and the
a small xml action that animates that crop setting,
please see the "hotspot" or the "examples\xml-usage\animated-hotspots" folder in the viewer download package,
best regards,
Klaus