function GetRadWindow()
{
    var oWindow = null;
    try
    {
        if (window.radWindow)
            oWindow = window.radWindow;
        else if (window.frameElement.radWindow)
            oWindow = window.frameElement.radWindow;
    }
    catch(oException)
    {
    }
    return oWindow;
} 

GetRadWindowManager = function()
{
    var oWindow = GetRadWindow();   
    if(oWindow == null)
    {
        return Telerik.Web.UI.WindowManager.Manager;
    }
    else
    {
        return oWindow.get_windowManager();
    }
    return null;
}
        
function GetBrowserWindow()
{
    var oWindow = GetRadWindow();
    if(oWindow == null)
    {
        return window;
    }
    else
    {
        return oWindow.BrowserWindow;
    }
}