Special approach, to reset the radio button that has been checked, in case there's no default checked buttons. Cannot use normal approach "$(object).removeAttr('checked')"

reset-checked-radio-buttons.html

<!-- There is no default checked button -->
<input type="radio" name="my-radio" value="0">Choice 1</input>
<input type="radio" name="my-radio" value="1">Choice 2</input>
<input type="radio" name="my-radio" value="2">Choice 3</input>

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script type="text/javascript">
  // Global index
  var rdoActiveIndex = -1;
  
  $('input[name=my-radio]').on('click', function(e) {
  	var oldActiveIndex = rdoActiveIndex;
  	rdoActiveIndex = $(this).val();
  	
  	// Reset checking status
  	$('input[name=my-radio]').removeAttr('checked');

  	if (oldActiveIndex != rdoActiveIndex) {
  		$('input[name=my-radio][value='+rdoActiveIndex+']').attr('checked','checked');
  	} else {
  		// reset index
  		rdoActiveIndex = -1;
  	}
  });
</script>