function parseDateString(sDateString) {
		var aParts = sDateString.split("-"),
			iYear, iMonth, iDay;
		if (aParts[0] == "") {
			// negative year
			iYear = -parseInt(aParts[1]);
			iMonth = parseInt(aParts[2]) - 1;
			iDay = parseInt(aParts[3]);
		} else {
			iYear = parseInt(aParts[0]);
			iMonth = parseInt(aParts[1]) - 1;
			iDay = parseInt(aParts[2]);
		}
		return {
			// no need to use UI5Date.getInstance as only the UTC timestamp is used
			timestamp: new Date(0).setUTCFullYear(iYear, iMonth, iDay),
			year: iYear,
			month: iMonth,
			day: iDay
		};
	}
Returns an object containing the date parts year, month, day of month and the date timestamp value
of the given date string.

@param {string} sDateString The date string which is to be parsed
@returns {object}
  An object containing the year, month, day of month and date timestamp values of the given
  date string