autotour

Hi all,
Does anyone know how to loop an autotour:

<action name="startup">
set(step,1);
autotour();
set(idletime,4);
set(events.onidle, autotour() );
</action>

<action name="autotour">
oninterrupt(break);
if(step == 1, loadscene(scene_1, null, MERGE, ZOOMBLEND(1,2) ); lookto(60, get(view.vlookat),get(view.fov), smooth(2,2,5), false); inc(step); );
if(step == 2, loadscene(scene_2, null, MERGE, ZOOMBLEND(1,2) ); lookto(60, get(view.vlookat),get(view.fov), smooth(2,2,5), false); inc(step); );

autotour();
</action>

<action name="autotour">
oninterrupt(break);
if(step == 1, loadscene(scene_1, null, MERGE, ZOOMBLEND(1,2) ); lookto(30, get(view.vlookat),get(view.fov), smooth(2,2,5), false); inc(step); );
if(step == 2, loadscene(scene_2, null, MERGE, ZOOMBLEND(1,2) ); lookto(30, get(view.vlookat),get(view.fov), smooth(2,2,5), false); inc(step); );
if(step == 3, set(step,1); autotour(););

</action>