This is mostly experimental code for testing ideas for web interfaces for X-ray crystallography applications. Some components are based on the code in the Computational Crystallography Toolbox (http://cctbx.sf.net), with obvious modifications and simplifications for JavaScript/web use.
Interactive demo pages here: http://natechols.github.io/xtal.js/