I'm having trouble understanding how to pass in a variable to modal, so that I can use (not as an input in a form) but to use in a helper method. 

I've looked at: [Passing data to a bootstrap modal](https://stackoverflow.com/questions/10626885/passing-data-to-a-bootstrap-modal) and [How to pass values arguments to modal.show() function in Bootstrap](https://stackoverflow.com/questions/10379624/how-to-pass-values-arguments-to-modal-show-function-in-bootstrap) and [Bootstrap JavaScript](http://getbootstrap.com/javascript/)

Link\_to modal: 

```
<%= link_to "#{comment.fname}", "#commenterModal", :class => "btn commenter", "data-toggle" => "modal", "data-id" => "4"%>

```

I'm using data-id="4" to test, but I would be passing in Rails variable comment.id.

Modal: 

```
<div id="commenterModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog modal-lg">
    <div class="modal-content">
      <div class="modal-body" style="background-color: #F5F5F5;">
        <div class="row" id="commentId">

         <%= getuserprofileofcommenter(commentId).bio %> 
        </div>

      <div class="modal-footer">
        <button class="btn btn-primary" data-dismiss="modal" aria-hidden="true">OK</button>
      </div>

      </div>
    </div>
  </div>
</div>

```

JS: 

```
$(document).ready(function() {
    $('#commenterModal').on('show.bs.modal', function(event) {
        $("#commentId").val($(event.relatedTarget).data('id'));
    });
});

```

I know I'm not understanding this correctly. But I'm trying to take this instance when I click on the link\_to, pass the variable (comment.id) in to the modal so I can use it when I call the helper method "getuserprofileofcommenter(commentId)". 

Any insight would help. Thank you!