Object.watch() or setInterval ? (4 preloader)

Hi guys,

Just updating a few things on my preloader. At the momment it works off setInterval, but since I have been investigating and using Object.watch() is was wondering whether it would be “more effecient” to replace the setInterval methods with watch() callback functions… I figure that way, instead of setInterval calling my “checkLoading” function every second, maybe I could use watch() to ‘watch’ the getBytesLoaded property of the thing im loading and call checkLoading function that way (to update progress bar).
HMmmmmmmm…
What do you think?