Converting a JavaScript Date object into the proper XML string

function SwConvertDateTimeToXml(dateTime) {

    var offset = (ORG_TIMEZONE_OFFSET < 0) ? -ORG_TIMEZONE_OFFSET : ORG_TIMEZONE_OFFSET;
    var timezoneOffsetHours = Math.floor(offset / 60);
    var timezoneOffsetMinutes = offset - timezoneOffsetHours * 60;

    var s =
      dateTime.getYear().toString() + "-" +
      SwGetFormattedDatePart(dateTime.getMonth() + 1) + "-" +
      SwGetFormattedDatePart(dateTime.getDate()) + "T" +
      SwGetFormattedDatePart(dateTime.getHours()) + ":" +
      SwGetFormattedDatePart(dateTime.getMinutes()) + ":" +
      SwGetFormattedDatePart(dateTime.getSeconds()) +
      ((ORG_TIMEZONE_OFFSET < 0) ? "-" : "+") +
      SwGetFormattedDatePart(timezoneOffsetHours) + ":" +
      SwGetFormattedDatePart(timezoneOffsetMinutes);

    return s;
}

function SwGetFormattedDatePart(value) {
    return (value < 10) ? ("0" + value.toString()) : value.toString();
}