<div id="myModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
   <div class="modal-header">
      <h3 id="myModalLabel"><?php print $x; ?></h3>
   </div>
   <div class="modal-footer">
      <button class="btn btn-primary" data-dismiss="modal" aria-hidden="true">OK</button>
   </div>
</div>

<script>
    $('#myModal').modal('show');
</script>