//Set OpenerElementId - the id (ClientID if a runat=server is used) of a html element, which, when clicked, will automatically open/show the Telerik RadWindow
//Set OffsetElementID - the id (ClientID if a runat=server is used) of a html element, whose left and top position will be used as 0,0 of the Telerik RadWindow object when it is first shown
//Top and Left can be used in conjunction with the OffsetElementId (if no OffsetElementId is specified, the top left corner of the browser window is used
newWindow.Top = Unit.Pixel(22);
newWindow.Left = Unit.Pixel(0);
//as a separate control, you can add the newly created RadWindow directly to the form's Controls collection