modal_example.html

<h2>Index</h2>

<table class="table">
    <thead>
        <tr>
            <th>#</th>
            <th>Item</th>
            <th>Price</th>
            <th>
                <a href='#' 
                   class="pull-right btn btn-info btn-add" 
                   data-toggle="modal" 
                   data-target="#myModal">Add New Item</a>
            </th>
        </tr>
    </thead>
    <tbody>
        ...
    </tbody>
</table>

<!-- Modal -->
<div class="modal fade" 
     id="myModal" 
     tabindex="-1" 
     role="dialog" 
     aria-labelledby="myModalLabel" 
     aria-hidden="true">
    <div class="modal-dialog">
        <!-- modal content -->
        ...
    </div>
</div>