mydate97时间控件最大值最小值限制及Javascript日期判断大小

<script language="javascript" type="text/javascript" src="<%=basePath %>js/datePicker/WdatePicker.js"></script>
<form id="searchForm" action="trans/triplist" method="post" onsubmit="return checkForm();">
    <input type="hidden" name="orderNo" value="${trip.orderNo }">
    <input type="hidden" name="hwDeviceId" value="${trip.hwDeviceId }">
    <table>
        <tr>
        <td>行车时间  从</td><td><input id="startTime" name="startTime" type="text" style="width: 160px;" value="${startTime}" readonly="readonly" class="Wdate" onfocus="WdatePicker({dateFmt:‘yyyy-MM-dd HH:mm:ss‘,skin:‘whyGreen‘,maxDate:‘${trip.revertTimeStr }‘,minDate:‘${trip.rentTimeStr }‘})" /></td>
        <td>到</td><td><input id="endTime" name="endTime" type="text" style="width: 160px;" value="${endTime}" readonly="readonly" class="Wdate" onfocus="WdatePicker({dateFmt:‘yyyy-MM-dd HH:mm:ss‘,skin:‘whyGreen‘,maxDate:‘${trip.revertTimeStr }‘,minDate:‘${trip.rentTimeStr }‘})"/></td>
        <td><input type="submit" name="buttonEvent" value="查询">
        </td>
        </tr>
    </table>
</form>

function checkForm(){
    var flag = false;
    $("#searchForm input[type=‘text‘]").each(function(){
        if($(this).val()==‘‘) {
            layer.alert("请选择行车时间!",5);
            flag = true;
        }
    });
    if(flag){
        return false;
    }else{
        //alert("startTime:" + $("#startTime").val());
        //alert("endTime:" + $("#endTime").val());
        
        var sDate = new Date($("#startTime").val().replace(/\-/g, "\/"));
        var eDate = new Date($("#endTime").val().replace(/\-/g, "\/"));
        //alert("sDate:"+sDate);
        //alert("eDate:"+eDate);
        //alert("比较：" + (sDate > eDate));
        if(sDate > eDate)
        {
            layer.alert("结束日期不能小于开始日期!",5);
            return false;
        }else{
            return true;
        }
    }
}