Jules Janssen

This would be fairly easy to implement if @jenssegers is willing to include the carbon package as a requirement.

See https://github.com/julesjanssen/chosen/blob/master/Source/chosen.js#L618-L619 But it looks like you're looking at the original jQuery version, not this MooTools fork.

No idea, but please have a look at that version's repository & documentation here: https://github.com/harvesthq/chosen

This is a Mootools fork of the original jQuery library by Harvest. I suggest you take a look at their documentation for help on your question: http://harvesthq.github.io/chosen/

Not exactly the same, but I use https://github.com/piwik/device-detector Combine that package with an extended Agent class and you can use it as before.