title: Bootstrap date picker-disable and enable on condition
body: <p>I am using this date picker.<br>
  <a href="http://bootstrap-datepicker.readthedocs.org/en/release/" rel="nofollow">http://bootstrap-datepicker.readthedocs.org/en/release/</a></p>
  
  <p>My concern is that I want to enable date picker on some condition. 
  For example : I have a select box of a country and if country is US,  I want to enable date picker otherwise disable it.  Disabling the date picker means user can not select date or No date picker should pop-up. 
  I am selecting date picker by date picker calendar icon not with textbook.</p>