PanelBar collapse not working after Jquery load

[Rob]

I am using MVC3 to populate a view, and the PanelBar collapses / expands as expected.

A timer has been added to rip out the old div containing the panelBar and replace it with a new one...

window.setInterval(handleEvent, 5000);

function callbackFunction() {
    alert('Reached');
    $('#PanelBar').tPanelBar({expandMode:1});
}

function handleEvent() {
   var theUrl = "@Url.Action("Nav","Nav")";
   $('#PanelBar').load(theUrl,callbackFunction);
}

But for some reason, it's no longer responding to collapse / expand clicks.  What am I missing?

Thanks,
Rob.

[Rob]

Some additional information that I previously left out...

The PanelBar is originally loaded as a full page load, using the layout that contains the Telerik style sheet registrar and script registrar.

When I refresh the PanelBar using Jquery, I load the PanelBar as part of a partial view - without a layout specified, so I'm wondering whether I need to determine whether the PanelBar is being created with a full-page load or partial load, then perhaps adding the script registrar? Is that what would kick it back in to action? Or should I invoke a VisualBasic method that might already be loaded by Telerik?

Regards,
Rob.