Timeslider / Dateslider based on: http://code.google.com/p/dateslider/ The dateslider component is build upon: http://prototypejs.org/ http://script.aculo.us/ https://code.google.com/p/datejs/ The original dateslider component was upgraded (latest Scriptaculous/Prototype version) and integrated in Heron as a User Extension (ux), including making an API for configuration and some bug-fixing. See the Heron timeslider example index.html for the crucial order of loading the frameworks to prevent unwanted behaviour.