echarts-basic-example-template
http://stackoverflow.com/q/4460205/918414
author(s): Jon Arild Nygård
No-Library (pure JS), HTML, CSS, JavaScript
jQuery 1.9.1, HTML, CSS, JavaScript
Toggle class name on click in jQuery
http://stackoverflow.com/questions/2444430/how-to-get-a-word-under-cursor-using-javascript