requires("1.42k");
Stack.getDimensions(mywidth, myheight, mychannels, myslices, myframes);
if (mychannels>1 && myslices==1 && myframes==1) {
   //print("Hyperstack!");
   run("Duplicate...", "title=Animation duplicate");
   run("RGB Color");
   selectWindow("Animation");
   close();
   selectWindow("Animation (RGB)");
   run("8-bit");
   run("Invert LUT");
   rename("Animation");
} else if (mychannels==1 && myslices>1 && myframes==1) {
   //print("Stack!");
   run("Duplicate...", "title=Animation duplicate");
   rename("Animation");
} else {
   print("---------------------------------------");
   print("c: ", mychannels, " channels");
   print("z: ", myslices,   " slices");
   print("t: ", myframes,   " frames");
   print("");
   print("Image is neither Stack nor Hyperstack.");
   print("Gif Animation unnecessary.  Aborting...");
   print("---------------------------------------");
   print("");
}