cheyue

js:
function checkDate(){
                var startTime=document.getElementById("ksrq").value; //获得系统日期的文本值
                var endTime=document.getElementById("jsrq").value; //获得用户选择的日期文本值
                var aStart=startTime.split('-'); //转成成数组，分别为年，月，日，下同
                var aEnd=endTime.split('-');
                var startDate = aStart[0]+"/" + aStart[1]+ "/" + aStart[2];
                var endDate = aEnd[0] + "/" + aEnd[1] + "/" + aEnd[2];
                if (startDate > endDate) {
                    $("#message").html("<font color=red>开始日期必须小于结束日期</font>");
                    return false;
                }
                return true;
            }
jsp:
<label id="message"></label>