badjmol = 'Jmol.jar was not run from within\n' +
'the animation_kit folder. Please run the\n' +
'Jmol.jar in the animation_kit folder.';

if (load("check_playback.spt", 0) != "")
{
	prompt badjmol;
	exit;
}

set spinfps 20 # capture speed default 30, max 50.
set animationfps 16 # playback speed default 10, max 50.

script frank.spt

playback = "FAST";

prompt "Playback speed set to " + playback + "."