static void seng_conditional_activate(GF_Node *node, GF_Route *route)
{
	if (node) {
		GF_SceneEngine *seng = (GF_SceneEngine *) gf_node_get_private(node);
		M_Conditional *c = (M_Conditional*)node;
		if (c->activate) seng_exec_conditional(c, seng->sg);
	}
}
static void seng_conditional_activate(GF_Node *node, GF_Route *route)
{
	if (node) {
		GF_SceneEngine *seng = (GF_SceneEngine *) gf_node_get_private(node);
		M_Conditional *c = (M_Conditional*)node;
		if (c->activate) seng_exec_conditional(c, seng->sg);
	}
}