gtk_object_unref(GTK_OBJECT(gTooltipWidget));
g_object_unref(gTooltipWidget);
moz_gtk_shutdown(){    if (gTooltipWidget)        gtk_object_unref(GTK_OBJECT(gTooltipWidget));    /* This will destroy all of our widgets */    if (gProtoWindow)        gtk_widget_destroy(gProtoWindow);    return MOZ_GTK_SUCCESS;}