I understand the part about RadAjaxPanel ajaxifying all controls within it's tags but does it ajaxify invisible controls? Say you have five asp panels within a RadAjaxPanel that you toggle visibility on based on link button clicks. If only one panel is visible at a time, does the RadAjaxPanel ajaxify ALL of the five panels' controls on say, a button click contained within the visible panel OR does it ajaxify just the panel that is visible and therefore just the controls contained within the visible panel?