Detect if JQuery dialog is open

detect if dialog is open
when using a JQuery dialog, in some cases we neeed to check if dialog is open or not. In below example we will see how do to detect if a JQuery dialog box is open or not

jQuery example that check's if dailog is open [jQuery]

<script src="jquery-1.4.1.js" ></script>
<script src="jquery-1.4.1.min.js" ></script>

<style type="text/css"> 
  .info {
   position: absolute;
   z-index: 200;
   display: none;
   text-align: center;
   background: gray;
   border: 2px solid silver;
<script type="text/javascript"> 
     $(document).ready(function () {

     function initializeDialog() {
             width: 650,
             modal: true,
             title: 'Dailog Title',
             buttons: { Close: function() { $(this).dialog('close'); } }

     function OpenDailog() {
         var $dlg = $('#dialog');
         //Here We check if dailog is open or not
         if ($dlg.dialog('isOpen') == true) {
             //Perform some operations;
         $dlg.append('<p>Dailog Contents</p>');
         $dlg.dialog('option', 'title', 'dailog Title'); 
<form action="">
<div id="dailog" class="info">

In above code if ($dlg.dialog('isOpen') == true) is imporant code that check's if jQuery dailog is open or not. You need to explicitly check == true otherwise $dlg.dialog('isOpen') will just return object only.