<script type="text/javascript" charset="utf-8">
    $(document).ready(function(){ 
        $('#question{QID} input[type="radio"]').on('click', function() {
            $('#ls-button-submit').trigger('click');
        });
    });    
</script>

<script type="text/javascript" data-author="Tony Partner">    
    $(document).on('ready pjax:scriptcomplete',function(){
        $('#question{QID} :radio').on('change', function(e) {
            $('#ls-button-submit').trigger('click');
        });
    });
</script>