parse list of videoIDs (and sanitise)

gistfile1.as

var playlist = "-123 ,456-, x789";
var videos = playlist.split(',');
var videos_count = videos.length;
for( var i = 0; i < videos_count; i++ ) {
	// sanitise and remove non-numeric characters
	var video_id = Number(videos[i].replace(/\D/g, ''));
	// test
	trace('videoID: [' + video_id + ']');
}