开始时间：
<input type="text" id="startDate" value='<s:property value="logVO.beginTime"/>' class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy/MM/dd',maxDate:'#F{$dp.$D(\'endDate\')}',lang:'en'})"/>
结束时间：
<input type="text" id="endDate" value='<s:property value="logVO.endTime"/>' class="Wdate" onfocus="WdatePicker({dateFmt:'yyyy/MM/dd',minDate:'#F{$dp.$D(\'startDate\')}',lang:'en'})"/>