JS 日期相減

        var rbt = '2014-03-01';
	var ret = '2014-03-10';

	var t1 = new Date();
	var t2 = new Date();
	var arrayDate1 = rbt.split("-");
	var arrayDate2 = ret.split("-");
	t1.setFullYear(arrayDate1[0], arrayDate1[1], arrayDate1[2]);
	t2.setFullYear(arrayDate2[0], arrayDate2[1], arrayDate2[2]);
	var intDays = parseInt(Math.abs(t2-t1) / 1000 / 60 / 60 / 24);