看看这个。
//日期增加函数
function dateAdd(strInterval, NumDay, dtDate) {
var dtTmp = new Date(dtDate)
if (isNaN(dtTmp)) dtTmp = new Date()
switch (strInterval) {
case "s":return new Date(Date.parse(dtTmp) + (1000 * NumDay))
case "n":return new Date(Date.parse(dtTmp) + (60000 * NumDay))
case "h":return new Date(Date.parse(dtTmp) + (3600000 * NumDay))
case "d":return new Date(Date.parse(dtTmp) + (86400000 * NumDay))
case "w":return new Date(Date.parse(dtTmp) + ((86400000 * 7) * NumDay))
case "m":return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + NumDay, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds())
case "y":return new Date((dtTmp.getFullYear() + NumDay), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds())
}
}
//将日期beginDate加上一天
//strDateList = dateAdd("d", 1, new Date()).toLocaleString()
strDateList = dateAdd("d", 1, '2012/09/28').toLocaleString()
另赠送你一个函数:
//| 求两个时间的天数差 日期格式为 YYYY-MM-dd
function daysBetween(DateOne,DateTwo)
{
var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ('-'))
var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ('-')+1)
var OneYear = DateOne.substring(0,DateOne.indexOf ('-'))
var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ('-'))
var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ('-')+1)
var TwoYear = DateTwo.substring(0,DateTwo.indexOf ('-'))
var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000)
return Math.abs(cha)}
<script type="text/javascript">//左右移动(s1,s2根据参数自动识别左右下拉框)
function yidong(s1, s2) {
var a = document.getElementById(s1)
var b = document.getElementById(s2)
var c = a.options
for ( var i = 0 i < c.length i++) {
if (c.options[i].selected) {
b.appendChild(c.options[i])
i--
}
}
}
//转换时间(我这里用的格式是:2013/09 ,可以自己修改想要的)
function getTime() {
document.getElementById("left").length=0 //删除下拉选项
document.getElementById("right").length=0
var time = document.getElementById("times").value //得到输入框的时间
var d = new Date(time + "/01")
var y = d.getFullYear()
var m = d.getMonth() + 1
var t1 = Date.parse(m + "/28/" + y)
var t2 = Date.parse(m + 1 + "/1/" + y)
thisMonthDays = 27 + (t2 - t1) / (60 * 60 * 24 * 1000) //当月总共的天数
// alert(m + "月份共有" + thisMonthDays + "天")
//循环当月天数
for ( var i = 1 i <= thisMonthDays i++) {
var date = new Date(time + "/" + i)
createOptions(date) //创建一个下拉列表元素
}
}
//创建下拉元素
function createOptions(dates) {
var xingqi = [ "星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" ]
var year = dates.getFullYear() //得到年份
var month = dates.getMonth() + 1//0-11 月
var date = dates.getDate() //日
var day = dates.getDay() //0-6 0是星期七 6是星期六
var times = year + "年" + month + "月" + (date<10?"0"+date:date) + "日 " + xingqi[day]
//创建下拉
var ops = document.createElement("option")
ops.appendChild(document.createTextNode(times)) //添加要显示的文本
document.getElementById("left").appendChild(ops) //添加到左边下拉框
}
</script>
<body>
输入时间:
<input type="text" name="times" id="times" value="2013/09">
<input type="button" value="确定" onclick="getTime()">
<br>
<br>
<span> <select id="left" size="10" multiple="multiple">
</select> </span>
<span>
<input type="button" value=">>>" onclick="yidong('left','right')" />
<input type="button" value="<<<" onclick="yidong('right','left')" />
</span>
<span> <select id="right" size="10" multiple="multiple">
</select> </span>
</body>