text: $(document).on('keyup', '.comment-textarea', commentLengthCounter);
  
  function commentLengthCounter(textarea) {
  	var length;
  	
  	if( this !== window )
  		length = $(this).val().length;
  	else
  		length = $(textarea).val().length;
  	
  	$('.comment-length-counter').html(" " + (600 - length));
  }