How to control visibility of all panels with one single statement

Hi,

I have used many UI Panels in my guide GUI. The Panels are dedicated for special tasks which can be selected by pushbuttons. Currently, I am enabling or disabling each panel with following statements

handles.PanelName.Visible='on';
handles.PanelName.Visible='off';

The problem is, I have to repeat statement for each panel. Is it possible to control the visibility of all panels with a single statement. I have used

arrayfun with findall

to clear all axes in one single statement but not sure how to use this for controlling the visibility of panels. Please help, thanks.