js中计算两个日期之差

var aBgnDate, aEndDate;
var oBgnDate, oEndDate;
var nYlts;
aBgnDate = strBgnDate.split('-');
aEndDate = strEndDate.split('-');
oBgnDate = new Date(aBgnDate[1] + '-' + aBgnDate[2] + '-' + aBgnDate[0]);
oEndDate = new Date(aEndDate[1] + '-' + aEndDate[2] + '-' + aEndDate[0]);
//把相差的毫秒数转换为天数
nYlts = parseInt(Math.abs(oEndDate - oBgnDate) / 1000 / 60 / 60 / 24);