<script type="text/javascript" charset="utf-8">
 
  $(document).on('ready pjax:scriptcomplete',function(){
 
    // Identify this question
    var thisQuestion = $('#question{QID}');
    var thisTextArea = $('textarea:eq(0)', thisQuestion);
 
    // Set minimum characters
    var minCharacters = 10;
 
    function handleCharacterCount() {
      var thisVal = $.trim($(thisTextArea).val());
      var thisCount = thisVal.length;
 
      $('.character-count', thisQuestion).text(thisCount);
 
      if(thisCount <= minCharacters) {
        $('#ls-button-submit').prop('disabled', true);
      }
      else {
        $('#ls-button-submit').prop('disabled', false);
      }
    }
 
    // Initial state
    handleCharacterCount();
 
    // Listener on the textarea
    $(thisTextArea).on('keyup change', function(e) {
      handleCharacterCount();
    });
  });
</script>