title: Jquery, How get checkbox unchecked event and checkbox value?
body: <p>I want to get <code>checkbox</code> value using jQuery when to uncheck the checked checkbox and show that unchecked value in the popup. I've tried below code but it not work</p>
  
  <pre><code>$("#countries input:checkbox:not(:checked)").click(function(){
      var val = $(this).val();
      alert('uncheckd' + val);
  }); 
  </code></pre>
  
  <p>Is it possible to get unchecked value in this way?</p>