template/modals/error_alert.html

<div class="modal" id="modal_alert" xmlns="http://www.w3.org/1999/html">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                    <span aria-hidden="true">×</span></button>
                <h4 class="modal-title" >Warning</h4>
            </div>
            <div  class="modal-body">
                <label id="modal_alert_text"> </label>

            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-primary pull-right" data-dismiss="modal">Ok</button>
            </div>
        </div>
        <!-- /.modal-content -->
    </div>
    <!-- /.modal-dialog -->
</div>