How to get the Base URL value in CRM 2013 using javascript OR How to get the Server URL in CRM 2013 using javascript

With reference to CRM 2013 SDK, please note that the js method context.getServerUrl() which was widely used in CRM 2011 is deprecated in CRM 2013.  So we need to use the following method instead to retrieve the base URL value. 

var baseURL = Xrm.Page.context.getClientUrl();

The values Returned:

Client	Value
Microsoft Dynamics CRM (on-premises)	http(s)://server/org
Microsoft Dynamics CRM Online	https://org.crm.dynamics.com
Microsoft Dynamics CRM for Outlook with Offline Access when offline	http://localhost:2525

Ref: ( CRM 2013 SDK )