custom.js

$(document).ready(function() {
	
// Support for AJAX loaded modal window.
// Focuses on first input textbox after it loads the window.
$('[data-toggle="modal"]').bind('click',function(e) {
	e.preventDefault();
	var url = $(this).attr('href');
	if (url.indexOf('#') == 0) {
		$('#response_modal').modal('open');
	} else {
		$.get(url, function(data) {
                        $('#response_modal').html(data);
                        $('#response_modal').modal();
		}).success(function() { $('input:text:visible:first').focus(); });
	}
});
	
});

index.html

<a href="/url/to/load/modal_window.htm" data-toggle="modal">link</a>

<div id="response_modal" class="modal hide fade"></div>

modal_window.htm

<div class="modal-header">
	<a class="close" data-dismiss="modal">&times;</a>
	<h3>Modal header 2</h3>
</div>
<div class="modal-body">
	<p>One body...</p>
</div>
<div class="modal-footer">
	<a class="btn btn-primary">Save Changes</a>
	<a class="btn" data-dismiss="modal">Close</a>
</div>