The following code shows how to create message modal dialog.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.10.1.js'></script>
<script type='text/javascript'
src="http://getbootstrap.com/2.3.2/assets/js/bootstrap-modal.js"></script>
<link rel="stylesheet" type="text/css"
href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css">
<script type='text/javascript'>
$(window).load(function(){<!--from w w w . ja v a 2 s . c om-->
$('#myModal2').modal('show');
});
</script>
</head>
<body>
<a href="#myModal2" role="button" class="btn btn-warning"
data-toggle="modal">Confirm</a>
<div id="myModal2" class="modal hide fade" tabindex="-1" role="dialog"
aria-labelledby="myModalLabel2" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"
aria-hidden="true">×</button>
<h3 id="myModalLabel2">Alert Header</h3>
</div>
<div class="modal-body">
<p>Body goes here...</p>
</div>
<div class="modal-footer">
<button data-dismiss="modal" class="btn green">OK</button>
</div>
</div>
</body>
</html>