How to show image on axes from external function in gui? where external function is called from pushbutton?

i am trying to call a maj function from pushbutton callback that show image on gui axes/?? Eror:'Undefined variable "handles" or class "handles.axes1"'

   function pushbutton1_Callback(hObject, eventdata, handles)
    maj

function maj()
disp('LLL');
image=imread('pvcs.jpg');
axes(handles.axes1);
imshow(image);