function g_logicValCallback(hObject, varargin)
   
   global params
   
   currParamIndex = get(hObject,'UserData');
   newValue = get(hObject,'Value')-1;
   if newValue, newValue = true; else newValue = false; end
   params = pset(params,params.params(currParamIndex).key,newValue);
   
   set(findobj('Tag','apply'),'Enable','on');
   set(findobj('Tag','undo'),'Enable','on');
   
end