jQuery Dialog Confirm

HTML

<link rel="stylesheet" href="http://code.jquery.com/ui/1.8.23/themes/redmond/jquery-ui.css">
<button id="callConfirm">Confirm!</button>

<div id="dialog" title="Confirmation Required">
  Are you sure about this?
</div>

JavaScript

$("#callConfirm").on("click", function(e) {
    if(confirm('Are you sure'))
        alert('Yes');
    else
        alert('No');
});