jQuery 1.5.2, HTML, CSS, JavaScript
http://stackoverflow.com/questions/11189660/knockoutjs-binding-value-of-select-with-optgroup-and-javascript-objects
No-Library (pure JS), HTML, CSS, JavaScript
forEach binding of an observableArray only passes data on to
jQuery 1.11.0, HTML, CSS, JavaScript
jQuery 1.8.3, HTML, CSS, JavaScript