The following code shows how to popover on top.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/bootstrap/3.0.2/css/bootstrap.min.css">
<script type='text/javascript'
src="http://netdna.bootstrapcdn.com/bootstrap/3.0.2/js/bootstrap.min.js"></script>
<script type='text/javascript'>
$(window).load(function(){<!-- w ww. j a v a 2s. c om-->
$('[data-toggle="popover"]').popover();
$('body').on('click', function (e) {
$('[data-toggle="popover"]').each(function () {
if (!$(this).is(e.target) &&
$(this).has(e.target).length === 0 &&
$('.popover').has(e.target).length === 0) {
$(this).popover('hide');
}
});
});
});
</script>
</head>
<body style='margin:300px'>
<div class="bs-example tooltip-demo">
<div class="bs-example-tooltips">
<button type="button"
class="btn btn-default"
data-container="body"
data-toggle="popover"
data-placement="top"
data-content="Vivamus sagittis lacus vel augue laoreet rutrum faucibus."
data-original-title="" title="">Popover on top</button>
</div>
</div>
</body>
</html>