GNU Astronomy Utilities uses the following free Javascript codes:

MathJax.js	Apache-2.0-only	MathJax.js
TeX-AMS_HTML.js	Apache-2.0-only	TeX-AMS_HTML.js
MathMenu.js	Apache-2.0-only	MathMenu.js
MathZoom.js	Apache-2.0-only	MathZoom.js
jax.js	Apache-2.0-only	jax.js
BasicLatin.js	Apache-2.0-only	BasicLatin.js
fontdata.js	Apache-2.0-only	fontdata.js
mtable.js	Apache-2.0-only	mtable.js
Main.js	Apache-2.0-only	Main.js
GeneralPunctuation.js	Apache-2.0-only	GeneralPunctuation.js