path_hbox.pack_start (path_label, false, false, 3);
path_hbox.pack_start (path_entry, true, true, 3);
path_hbox.pack_start (browse_button, false, false, 3);
path_hbox.pack_start (path_label, false, false, 3);
path_hbox.pack_start (path_entry, true, true, 3);
path_hbox.pack_start (browse_button, false, false, 3);