ed',
                     //   onClick: function(){ handle_nav_manually(); };
                     //   title: 'click to make inactive',
                     //   icon: 'fa-circle',    // wrapped with <a>
                     // }

                     leafletClasses:   true,     // use leaflet styles for the button
                     tagName:          'button',
                 },



                 initialize: function(icon, onClick, title, id){

                     // clear the states manually
      