<!--forms[]部分--> <td> <div id="td12Div" style="display: none;">起始日期：</div> </td> <td> <div id="sdateDiv"> <date:date styleClass="psm-ui-text" name="startDate" property="startDate" divname="dayScope2" sourceFormat="yyyy-MM-dd" targetFormat="yyyy-MM-dd" readonly="true"/> </div> </td> <!--js部分--> var startDate=document.forms[0].startDate.value; var endDate=document.forms[0].endDate.value; if(DateDiff(endDate,startDate)>3){ alert("日范围不要超过三天"); return; } function DateDiff(endDate,startDate) { var arrDate,objDate1,objDate2,intDays; arrDate=endDate.split("-"); objDate1=new Date(arrDate[1]+'-'+arrDate[2]+'-'+arrDate[0]); arrDate=startDate.split("-"); objDate2=new Date(arrDate[1] + '-'+arrDate[2]+'-'+arrDate[0]); intDays=parseInt(Math.abs(objDate1-objDate2)/1000/60/60/24); return intDays; }