JS比较2个日期间隔的示例代码

<!--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; 
}