This Atlassian JIRA tutorial shows you how to display a dialog with content from the server and have it interact with your page. 
In this tutorial we will be using the scheduling of an issue to be fixed in particular version.

This branch contains the plugin at the starting point of the tutorial

This project is hosted at:
https://bitbucket.org/nmenere/tutorial-jira-scheduler

The tutorial is located at:
https://developer.atlassian.com/display/DOCS/Tutorials