//适合格式（0000-00-00）       //日期比较
        function dateCompare(startdata, enddata) {var arr = startdata.split("-");var starttime = new Date(arr[0], arr[1], arr[2]);var starttimes = starttime.getTime();var arrs = enddata.split("-");var lktime = new Date(arrs[0], arrs[1], arrs[2]);var lktimes = lktime.getTime();if (starttimes > lktimes) {return false;}elsereturn true;}

//调用var startdata = $("#ipt_startdate").datebox('getValue');var enddata = $("#ipt_enddate").datebox('getValue');if (!dateCompare(startdata, enddata)) {return $.messager.alert('提示', '您输入的时间有误！', 'warning');}

JS时间比较//比较日期大小
function compareDate(checkStartDate, checkEndDate) {var arys1 = new Array();var arys2 = new Array();if (checkStartDate != null && checkEndDate != null) {arys1 = checkStartDate.split('-');var sdate = new Date(arys1[0], parseInt(arys1[1] - 1), arys1[2]);arys2 = checkEndDate.split('-');var edate = new Date(arys2[0], parseInt(arys2[1] - 1), arys2[2]);if (sdate > edate) {// alert("日期开始时间大于结束时间");return true;} else {//alert("通过");return false;}}
}//判断日期，时间大小
function compareTime(startDate, endDate) {if (startDate.length > 0 && endDate.length > 0) {var startDateTemp = startDate.split(" ");var endDateTemp = endDate.split(" ");var arrStartDate = startDateTemp[0].split("-");var arrEndDate = endDateTemp[0].split("-");var arrStartTime = startDateTemp[1].split(":");var arrEndTime = endDateTemp[1].split(":");var allStartDate = new Date(arrStartDate[0], arrStartDate[1], arrStartDate[2], arrStartTime[0], arrStartTime[1], arrStartTime[2]);var allEndDate = new Date(arrEndDate[0], arrEndDate[1], arrEndDate[2], arrEndTime[0], arrEndTime[1], arrEndTime[2]);if (allStartDate.getTime() >= allEndDate.getTime()) {// alert("startTime不能大于endTime，不能通过");return true;} else {//alert("startTime小于endTime，所以通过了");return false;}} else {alert("时间不能为空");return true;}
}
//比较日期，时间大小
function compareDateTime(startDate, endDate) {if (startDate.indexOf(" ") != -1 && endDate.indexOf(" ") != -1) {//包含时间，日期   return compareTime(startDate, endDate);} else {//不包含时间，只包含日期   return compareDate(startDate, endDate);}
}

js日期比较(yyyy-mm-dd)function duibi(a, b) {var arr = a.split("-");var starttime = new Date(arr[0], arr[1], arr[2]);var starttimes = starttime.getTime();var arrs = b.split("-");var lktime = new Date(arrs[0], arrs[1], arrs[2]);var lktimes = lktime.getTime();if (starttimes >= lktimes) {alert('开始时间大于离开时间，请检查');return false;}elsereturn true;}js时间比较(yyyy-mm-dd hh:mi:ss)function comptime() {var beginTime = "2009-09-21 00:00:00";var endTime = "2009-09-21 00:00:01";var beginTimes = beginTime.substring(0, 10).split('-');var endTimes = endTime.substring(0, 10).split('-');beginTime = beginTimes[1] + '-' + beginTimes[2] + '-' + beginTimes[0] + ' ' + beginTime.substring(10, 19);endTime = endTimes[1] + '-' + endTimes[2] + '-' + endTimes[0] + ' ' + endTime.substring(10, 19);alert(beginTime + "aaa" + endTime);alert(Date.parse(endTime));alert(Date.parse(beginTime));var a = (Date.parse(endTime) - Date.parse(beginTime)) / 3600 / 1000;if (a < 0) {alert("endTime小!");} else if (a > 0) {alert("endTime大!");} else if (a == 0) {alert("时间相等!");} else {return 'exception'}
}