For the time being this is possible with some jQuery by having the desired image URLs. A simple example is attached.

I would love it if the RadNotification control could display in other ways, and in particular more like mobile devices.  I have two specific requests:

1) Allow notifications to be displayed in bar which drops down from the top of the screen - similar to both iOS and Android.  Press the "click me" link on this page to see an example of what I am describing:
http://www.minijs.com/plugins/8/notification#demo

2) Create a notification queue (even if just session based, no need to make it persistent in a DB) showing unread notifications.  Here is an example that does a good job of this:
http://www.codebasehero.com/files/notification-menu/demo/

Thanks,
Denis Burke

OS: XP
IE. Version 8.0.6001.18702.xpsp_sp3_gdr.101209-1647
Telerik Version: 2012.2.912.40

Rad Notification control does not display on IE8. 

This control is being used to notify the user of a Session Timeout and provide the option to refresh.

Notable Items: 
1. No Javascript Errors on page. 
2. Z index is appropriate
3. X and Y is appropriate. 
4. debugging in javascript console, I can alert the control it returns instance [object]. however executing the "show()" method does nothing.
5. Javascript timer still executes on page and eventually kills the session but does not show popup.
6. Functions properly in other browsers, IE9,10, chrome etc... My requirement is IE8.

<telerik:RadNotification ID="RadNotification1" runat="server" OnClientShowing="OnClientShowing" LoadContentOn="PageLoad" 
    Position="Center" Title="Session Expiring" TitleIcon="" nableRoundedCorners="true" 
    ShowCloseButton="false" AutoCloseDelay="0">

....

I am using radnotification to notify that the data base operation message ,I putted this control on master page ,The issue is that the content page page load event always fire
So please provide solution for that

It would be incredibly helpful to add the AutoCloseDelay and ShowInterval properties to the Show function of the RadNotification control so I wouldn't have to add a wrapper to my base page class.