how to add custom visualization in dashboard and where we need to add the js and css?

I need to create the dashboard as below: I am giving the reference link: **http://bl.ocks.org/NPashaP/96447623ef4d342ee09b** I have added js and css files in splunk **C:\Program Files\Splunk\etc\apps\search\appserver\static** I am not getting the correct result . Let me know where I am doing wrong.