<li><label>发布时间：<span style="margin-left:1em;">从</span><input id="start-time" type="text" name=""class="ipt tcal" name="date"/><span>到</span><input id="end-time" type="text" name="" value="" class="ipt tcal" name="date"/></label></li>

<input type="submit" value="确认搜索" class="btn-sm btn-info" onclick="check()"/>

function check(startTime, endTime) {
        if (startTime.length > 0 && endTime.length > 0) {
            var startTmp = startTime.split("-");
            var endTmp = endTime.split("-");
            var sd = new Date(startTmp[0], startTmp[1], startTmp[2]);
            var ed = new Date(endTmp[0], endTmp[1], endTmp[2]);
            if (sd.getTime() > ed.getTime()) {
                alert("开始日期不能大于结束日期");
                return false;
            }
        }
        return true;
    }