/* 	Save this file, rename extension from .txt to .js
	Highlight tracks you want changed in iTunes * Ctrl+Click for multiple files * 
	then Execute by double clicking file in Windows Explorer
	Options:
	1. Adjust Ratings at increments of 20 (20=1 star, 40=2*, etc)
	2. Change "+ 20" to "- 20" or "- 40" depending on your needs
	3.  10, 30, 50, 70, and 90 create ratings with half-stars
	http://liquidparallax.com       */

var ITTrackKindFile = 1;
var objApp = WScript.CreateObject("iTunes.Application");
var tracks = objApp.SelectedTracks;
var numTracks = tracks.Count;
var i = 0;

while (numTracks != 0)
{
var currTrack = tracks.Item(numTracks);

if (currTrack.Kind == ITTrackKindFile)
{
currTrack.Rating = currTrack.Rating + 20
}
numTracks--;
i++;
}
WScript.Echo ("Rating altered for " + i + " tracks");