计算价钱的问题!

Question

 <input id="Text1" type="text" onpropertychange="" onfocus="javascript:calendar(document.getElementById('Text1'))" /> 有两个文本框  一个开始时间和结束时间..怎么在焦点离开后计算中间的天数并计算  单价*天数 我不知道怎么写JS.

Answer 1

<script language="javascript" type="text/javascript">
            
                function DateDiff()
                { //sDate1和sDate2是年-月-日格式
                var sDate1 = document.getElementById("startDT").value;
                var sDate2 = document.getElementById("endDT").value;
                var price=document.getElementById("price").value;
                if(sDate1!="" && sDate2!=""){
                var aDate,oDate1,oDate2,iDays;
                aDate=sDate1.split("-");
                oDate1=new Date(aDate[1]+'-'+aDate[2]+'-'+aDate[0]);//转换为月-日-年格式
                aDate=sDate2.split("-");
                oDate2=new Date(aDate[1] + '-'+aDate[2]+'-'+aDate[0]);
                iDays=parseInt(Math.abs(oDate1-oDate2)/1000/60/60/24); //把相差的毫秒数转换为天数
                alert(price*iDays);
                }
                }
            </script>
            单价：<input id="price" type="text"/>
            开始：<input id="startDT" type="text" onmouseout="DateDiff()" />
            结束：<input id="endDT" type="text" onmouseout="DateDiff()" />