Not quite. There is a large difference in the force you need . Ondown works more like on touch on iPad and on a desktop you will not get any difference from onclick unless you know how tom do it.
I have worked all week with Ayrton on it sometimes the onclick needs you to do several clicks to work on the iPad.
Ayrton said it was OK to publish it here if you want to see the difference on how it works
http://www.360-foto.dk/ayrton-vtour/
This use the <events onclick="set(autorotate.waittime, 12); delayedcall(1, set(event.onclick,null));" /> to set wait to 12 sec but that does not work on the iPad . Even if I just touch the thumbs to load that changes the waittime and the autorotation does not start after the 3.0 se I have in the autorotator code.
If I change it to ondown...waittime, 12 it works on iPad but not on desktop.
I also aded an onstart event with just 2 sec wait to see if that could override it but it but that has no effect.
Hans