<script>
function load()
{
var today = new Date();
var sDate = today.getYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
document.all.txtDate.value=sDate;
}
</script>
<body onload="load()">
<select name="sl" onchange="document.all.div1.style.display=''">
<option value=a>a
<option value=b>b
</select>
<p></p>
<div id="div1" style="display:none"><input type=text name='txtDate'></div>
</body>
function load()
{
var today = new Date();
var sDate = today.getYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
document.all.txtDate.value=sDate;
}
</script>
<body onload="load()">
<select name="sl" onchange="document.all.div1.style.display=''">
<option value=a>a
<option value=b>b
</select>
<p></p>
<div id="div1" style="display:none"><input type=text name='txtDate'></div>
</body>
function load()
{
var today = new Date();
var sDate = today.getYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
var beforeDate = today.getYear() + "-" + today.getMonth() + "-" + today.getDate();
document.all.txtDate.value=sDate;
document.all.txtBeforeDate.value=beforeDate;
}
</script>
<body onload="load()">
<select name="sl" onchange="document.all.div1.style.display=''">
<option value=a>a
<option value=b>b
</select>
<p></p>
<div id="div1" style="display:none">
<input type=text name='txtDate'><br>
<input type=text name='txtBeforeDate'>
</div>
</body>
<!--
String.prototype.parseDate = function(){
var ar = (this + ",0,0,0").match(/\d+/g);
return ar[5]?(new Date(ar[0],ar[1]-1,ar[2],ar[3],ar[4],ar[5])):(new Date());
}/**//*
* 功能:根据输入表达式返回日期字符串
* 参数:dateFmt:字符串,由以下结构组成
* yy:长写年,YY:短写年mm:数字月,MM:英文月,dd:日,hh:时,
* mi:分,ss秒,ms:毫秒,we:汉字星期,WE:英文星期.
* isFmtWithZero : 是否用0进行格式化,true or false
* 返回:对应日期的中文字符串
*/
Date.prototype.toString = function(dateFmt,isFmtWithZero){
dateFmt = (dateFmt == null ? "yy-mm-dd hh:mi:ss" : dateFmt);
if(typeof(dateFmt) != "string" )
throw (new Error(-1, 'toString()方法的第一个参数为字符串类型!'));
isFmtWithZero = !!isFmtWithZero;
var weekArr=[["日","一","二","三","四","五","六"],["SUN","MON","TUR","WED","THU","FRI","SAT"]];
var monthArr=["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"];
var str=dateFmt;
var o = {
"yy" : this.getFullYear(),
"YY" : this.getYear(),
"mm" : this.getMonth()+1,
"MM" : monthArr[this.getMonth()],
"dd" : this.getDate(),
"hh" : this.getHours(),
"mi" : this.getMinutes(),
"ss" : this.getSeconds(),
"we" : "星期" + weekArr[0][this.getDay()],
"WE" : weekArr[1][this.getDay()]
}
for(var i in o){
str = str.replace(new RegExp(i,"g"),o[i].toString().fmtWithZero(isFmtWithZero));
}
str = str.replace(/ms/g,this.getMilliseconds().toString().fmtWithZeroD(isFmtWithZero));
return str;
}
/**//*将一位数字格式化成两位,如: 9 to 09*/
String.prototype.fmtWithZero = function(isFmtWithZero){
return (isFmtWithZero && /^\d$/.test(this))?"0"+this:this;
}
String.prototype.fmtWithZeroD = function(isFmtWithZero){
return (isFmtWithZero && /^\d{2}$/.test(this))?"00"+this:((isFmtWithZero && /^\d$/.test(this))?"0"+this:this);
}/**//* 功能 : 返回与某日期相距N天(N个24小时)的日期
* 参数 : num number类型 可以为正负整数或者浮点数,默认为1;
* type 0(秒) or 1(天),默认为天
* 返回 : 新的Date对象
*/
Date.prototype.dateAfter=function(num,type){
num = (num == null?1:num);
if(typeof(num)!="number") throw new Error(-1,"dateAfterDays(num,type)的num参数为数值类型.");
type = (type==null?1:type);
var arr = [1000,86400000];
return new Date(this.valueOf() + num*arr[type]);
}
//-->
</script>
<script>
function load()
{
var today = new Date();
var sDate = today.getYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
document.all.txtDate.value=sDate;var pDate = sDate.parseDate().dateAfter(-30,null);
document.all.txtDate1.value=pDate.getYear() + "-" + (pDate.getMonth() + 1) + "-" + pDate.getDate();
}
</script>
<body onload="load()">
<select name="sl" onchange="document.all.div1.style.display=''">
<option value=a>a
<option value=b>b
</select>
<p></p>
<div id="div1" style="display:none"><input type=text name='txtDate'><input type=text name='txtDate1'></div>
</body>
function load()
{
var txtDate = document.getElementById("txtDate");
var txtDate_last = document.getElementById("txtDate_last");
var today = new Date();
var sDate = today.getYear() + "-" + (today.getMonth() + 1) + "-" + today.getDate();
var sDate_last = today.getYear() + "-" + (today.getMonth()) + "-" + today.getDate();
txtDate.value=sDate;
txtDate_last.value = sDate_last;}
function f_show(){
document.getElementById('div1').style.display='block';
}
</script>
<body onload="load()">
<select name="sl" onchange="f_show();">
<option value=a>a
<option value=b>b
</select>
<p></p>
<div id="div1" style="display:none"><input type=text name='txtDate'>
<input type=text name='txtDate_last'></div>
</body>