var mydate = function() {
	return {
		getLastMonthStart : function(datenow) {
			//var datenow = new Date();
			var weekstart = new Date();
			weekstart.setMonth(datenow.getMonth()-1);
			return weekstart;
		},
		getLastWeekStart : function(datenow) {
			//var datenow = new Date();
			var weekstart = new Date();
			weekstart.setDate(datenow.getDate()-7);
			return weekstart;
		},
		getLastDayStart : function(datenow) {
			//var datenow = new Date();
			var daystart = new Date();
			daystart.setHours(datenow.getHours()-24);
			return daystart;
		}
	};
}();