Detect if JQuery dialog is open

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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] 

<html>
<head><title></title>
<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;
 }
</style>
<script type="text/javascript"> 
//<![CDATA[
     $(document).ready(function () {
         initializeDialog();
         OpenDailog();
     });

     function initializeDialog() {
         $('#dialog').dialog({
             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('open');
         $dlg.dialog('option', 'title', 'dailog Title'); 
     }
//]]>
</script>
</head>
<body>
<form action="">
<div id="dailog" class="info">
</div>
</form>
</body>
</html>


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.