RadajaxLoadingPanel show not working

[Lynne]

I try to show and hide the radAjaxLoadingPanel, but it is not working.  I don't know what is missing.  I have a loading panel:

 

 

<telerik:RadScriptManager ID="RadScriptManager1" runat="server"></telerik:RadScriptManager>

 

 

 

<telerik:RadFormDecorator ID="FormDecorator1" runat="server" DecoratedControls="all"></telerik:RadFormDecorator>

 

 

 

<telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server"></telerik:RadAjaxLoadingPanel>

 

 

 

 

<telerik:RadAjaxManager ID="RadAjaxManager1" runat="server" ClientEvents-OnRequestStart="OnRequestStart" ClientEvents-OnResponseEnd="OnResponseEnd">

 

 

 

function OnRequestStart(sender, arguments) {

 

 

 

var currentLoadingPanel = window['<%=RadAjaxLoadingPanel1.ClientID %>'];

 

currentLoadingPanel.show(

 

'<%=PageForm.ClientID %>');

 

}

 

 

function OnResponseEnd(sender, arguments) {

 

 

 

var currentLoadingPanel = window['<%=RadAjaxLoadingPanel1.ClientID %>'];

 

currentLoadingPanel.hide(

 

'<%=PageForm.ClientID %>');

 

}

In IE I get an error that show won't work:
'Microsoft JScript runtime error: Object doesn't support this property or method'

In FF I get an error that  currentLoadingPanel is undefined.  Both have a problem at the line for currentLoadingPanel.show().

Others have this website in TFS and we have all downloaded the files, but mine is not working and other people seem to have no problem.
What am I missing?

This problem occurs when filtering or sorting a RadGrid.

Thanks!

[Dimo]

Hello Lynne,

You should not use window[...] to obtain reference to a RadControls for ASP.NET AJAX client object - this was used with the old ASP.NET controls. Use $find(...) instead.

http://www.telerik.com/help/aspnet-ajax/ajxshowhideloadingpanel.html

Greetings,
Dimo
the Telerik team

[Lynne]

That works!  Thanks.