js 日期加一天或两天

function initData(){
	var curDate = new Date();
	var startDate=new Date(curDate.setDate(curDate.getDate()+1)); 
	$("#startDate").val($.DateUtil.format(startDate,'yyyy-MM-dd'));
	var endDate=new Date(curDate.setDate(curDate.getDate()+1)); 
	$("#endDate").val($.DateUtil.format(endDate,'yyyy-MM-dd'));
}