Access Composite Controls in JavaScript CRM 2013/2015

Hi,
 
Today we got the requirement to disable Country/Region on the Address Composite Control. We never did this and don't know how to do. Started searching here and there and at last found the solution for it.
 
Here is the JavaScript code for it.
 
Xrm.Page.getControl("address1_composite_compositionLinkControl_address1_country").setDisabled(true);

In the same way, we can use all the Xrm method like setValue, getValue, setVisible, getVisible, getDisabled etc...

In the below screen shot you will see Country/Region as not disabled.

Here is thee screen shot where Country/Region is disabled(locked).

 

Hope this helps.

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Happy CRM'ing
Gopinath