simple slideshow timer

I have tried many variation of the following which is inserted into each scene statement. Nothing happens ???

<action name="scenetimer">
delayedcall(5, loadnext());
wait(blend);
</action>
<action name="loadnext">
set(NextScene,scene_02_9936nwskyviewdrive);
loadscene(get(NextScene), null, MERGE);
</action>

playing with bombtimer, it only moves from scene 1 to scene 2. Then stops.