Update all devices connected to iTunes(Windows)

UpdateAll.js

var KIND_IPOD = 2;

var iTunesApp = WScript.CreateObject("iTunes.Application");
var sources = iTunesApp.Sources;
for(i=1; i <= sources.Count; i++){
	item = sources.Item(i);
	if (item.Kind == KIND_IPOD) {
		item.UpdateIPod();
	}
}