if (plug->socket_window != NULL)
{
gdk_window_set_user_data (plug->socket_window, NULL);
g_object_unref (plug->socket_window);
plug->socket_window = NULL;
if (plug->socket_window != NULL)
{
gdk_window_set_user_data (plug->socket_window, NULL);
g_object_unref (plug->socket_window);
plug->socket_window = NULL;