Although Share was originally built using YUI2, JQuery plugins have also been introduced and it can not be restricted to using Dojo. The UI framework is designed to easily support widgets provided by other libraries and by design it is possible to swap out Dojo widgets for those provided by other libraries. A mechanism exists for wrapping our existing YUI2-centric widgets to that they can be referenced in the JSON model for the page. The Calendar of any Share site uses a combination of the YUI2, JQuery and Dojo libraries.