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js实现精确到秒的日期选择器完整实例

本文实例讲述了js实现精确到秒的日期选择器。分享给大家供大家参考，具体如下：

<script>
// 主调用函数是 setday(this,[object])和setday(this)，[object]是控件输出的控件名，举两个例子：
// 一、<input name=txt><input type=button value=setday onclick="setday(this,document.all.txt)">
// 二、<input onfocus="setday(this)">
var bMoveable=true;
var strFrame;
document.writeln('<iframe id=endDateLayer frameborder=0 width=162 height=211 style="position: absolute; z-index: 9998; display: none"></iframe>');
strFrame='<style>';
strFrame+='INPUT.button{BORDER-RIGHT: #63A3E9 1px solid;BORDER-TOP: #63A3E9 1px solid;BORDER-LEFT: #63A3E9 1px solid;';
strFrame+='BORDER-BOTTOM: #63A3E9 1px solid;BACKGROUND-COLOR: #63A3E9;font-family:宋体;}';
strFrame+='TD{FONT-SIZE: 9pt;font-family:宋体;}';
strFrame+='</style>';
strFrame+='<scr' + 'ipt>';
strFrame+='var datelayerx,datelayery;';
strFrame+='var bDrag;';
strFrame+='function document.onmousemove()';
strFrame+='{if(bDrag && window.event.button==1)';
strFrame+=' {var DateLayer=parent.document.all.endDateLayer.style;';
strFrame+=' DateLayer.posLeft += window.event.clientX-datelayerx;';
strFrame+=' DateLayer.posTop += window.event.clientY-datelayery;}}';
strFrame+='function DragStart()';
strFrame+='{var DateLayer=parent.document.all.endDateLayer.style;';
strFrame+=' datelayerx=window.event.clientX;';
strFrame+=' datelayery=window.event.clientY;';
strFrame+=' bDrag=true;}';
strFrame+='function DragEnd(){';
strFrame+=' bDrag=false;}';
strFrame+='</scr' + 'ipt>';
strFrame+='<div style="z-index:9999;position: absolute; left:0; top:0;" onselectstart="return false">';
strFrame+='<span id=tmpSelectYearLayer style="z-index: 9999;position: absolute;top: 3; left: 19;display: none"></span>';
strFrame+='<span id=tmpSelectMonthLayer style="z-index: 9999;position: absolute;top: 3; left: 78;display: none"></span>';
strFrame+='<span id=tmpSelectHourLayer style="z-index: 9999;position: absolute;top: 188; left: 35px;display: none"></span>';
strFrame+='<span id=tmpSelectMinuteLayer style="z-index:9999;position:absolute;top: 188; left: 77px;display: none"></span>';
strFrame+='<span id=tmpSelectSecondLayer style="z-index:9999;position:absolute;top: 188; left: 119px;display: none"></span>';
strFrame+='<table border=1 cellspacing=0 cellpadding=0 width=142 height=160 bordercolor=#63A3E9 bgcolor=#63A3E9 >';
strFrame+='  <tr><td width=142 height=23 bgcolor=#FFFFFF>';
strFrame+='    <table border=0 cellspacing=1 cellpadding=0 width=158 height=23>';
strFrame+='      <tr align=center >';
strFrame+='        <td width=16 align=center bgcolor=#63A3E9 style="font-size:12px;cursor: hand;color: #ffffff" ';
strFrame+='    onclick="parent.meizzPrevM()" title="向前翻 1 月" ><b >&lt;</b></td>';
strFrame+='    <td width=60 align="center" bgcolor="#63A3E9" style="font-size:12px;cursor:hand" ';
strFrame+='      onmouseover="style.backgroundColor=\'#aaccf3\'"';
strFrame+='    onmouseout="style.backgroundColor=\'#63A3E9\'" ';
strFrame+='    onclick="parent.tmpSelectYearInnerHTML(this.innerText.substring(0,4))" ';
strFrame+='    title="点击这里选择年份"><span id=meizzYearHead></span></td>';
strFrame+='    <td width=48 align="center" style="font-size:12px;font-color: #ffffff;cursor:hand" ';
strFrame+='    bgcolor="#63A3E9" onmouseover="style.backgroundColor=\'#aaccf3\'" ';
strFrame+='    onmouseout="style.backgroundColor=\'#63A3E9\'" ';
strFrame+='    onclick="parent.tmpSelectMonthInnerHTML(this.innerText.length==3?this.innerText.substring(0,1):this.innerText.substring(0,2))"';
strFrame+='    title="点击这里选择月份"><span id=meizzMonthHead ></span></td>';
strFrame+='    <td width=16 bgcolor=#63A3E9 align=center style="font-size:12px;cursor: hand;color: #ffffff" ';
strFrame+='    onclick="parent.meizzNextM()" title="向后翻 1 月" ><b >&gt;</b></td>';
strFrame+='   </tr>';
strFrame+='   </table></td></tr>';
strFrame+='  <tr><td width=142 height=18 >';
strFrame+='   <table border=0 cellspacing=0 cellpadding=2 bgcolor=#63A3E9 ' + (bMoveable? 'onmousedown="DragStart()" onmouseup="DragEnd()"':'');
strFrame+='  BORDERCOLORLIGHT=#63A3E9 BORDERCOLORDARK=#FFFFFF width=140 height=20 style="cursor:' + (bMoveable ? 'move':'default') + '">';
strFrame+='  <tr><td style="font-size:12px;color:#ffffff" width=20>&nbsp;日</td>';
strFrame+='<td style="font-size:12px;color:#FFFFFF" >&nbsp;一</td><td style="font-size:12px;color:#FFFFFF">&nbsp;二</td>';
strFrame+='<td style="font-size:12px;color:#FFFFFF" >&nbsp;三</td><td style="font-size:12px;color:#FFFFFF" >&nbsp;四</td>';
strFrame+='<td style="font-size:12px;color:#FFFFFF" >&nbsp;五</td><td style="font-size:12px;color:#FFFFFF" >&nbsp;六</td></tr>';
strFrame+='</table></td></tr>';
strFrame+=' <tr ><td width=142 height=120 >';
strFrame+='  <table border=1 cellspacing=2 cellpadding=2 BORDERCOLORLIGHT=#63A3E9 BORDERCOLORDARK=#FFFFFF bgcolor=#fff8ec width=140 height=120 >';
var n=0; for (j=0;j<5;j++){ strFrame+= ' <tr align=center >'; for (i=0;i<7;i++){
strFrame+='<td width=20 height=20 id=meizzDay'+n+' style="font-size:12px" onclick=parent.meizzDayClick(this.innerText,0)></td>';n++;}
strFrame+='</tr>';}
strFrame+='   <tr align=center >';
for (i=35;i<37;i++)strFrame+='<td width=20 height=20 id=meizzDay'+i+' style="font-size:12px" onclick="parent.meizzDayClick(this.innerText,0)"></td>';
strFrame+='    <td colspan=5 align=right style="color:#1478eb"><span onclick="parent.setNull()" style="font-size:12px;cursor: hand"';
strFrame+='     onmouseover="style.color=\'#ff0000\'" onmouseout="style.color=\'#1478eb\'" title="将日期置空">置空</span>&nbsp;&nbsp;<span onclick="parent.meizzToday()" style="font-size:12px;cursor: hand"';
strFrame+='     onmouseover="style.color=\'#ff0000\'" onmouseout="style.color=\'#1478eb\'" title="当前日期时间">当前</span>&nbsp;&nbsp;<span style="cursor:hand" id=evaAllOK onmouseover="style.color=\'#ff0000\'" onmouseout="style.color=\'#1478eb\'" onclick="parent.closeLayer()" title="关闭日历">关闭&nbsp;</span></td></tr>';
strFrame+='  </table></td></tr><tr ><td >';
strFrame+='    <table border=0 cellspacing=1 cellpadding=0 width=100% bgcolor=#FFFFFF height=22 >';
strFrame+='     <tr bgcolor="#63A3E9"><td id=bUseTimeLayer width=30 style="cursor:hand" title="点击这里启用/禁用时间"';
strFrame+='  onmouseover="style.backgroundColor=\'#aaccf3\'" align=center onmouseout="style.backgroundColor=\'#63A3E9\'"';
strFrame+='   onclick="parent.UseTime(this)">';
strFrame+=' <span></span></td>';
strFrame+='       <td style="cursor:hand" onclick="parent.tmpSelectHourInnerHTML(this.innerText.length==3?this.innerText.substring(0,1):this.innerText.substring(0,2))"';
strFrame+=' onmouseover="style.backgroundColor=\'#aaccf3\'" onmouseout="style.backgroundColor=\'#63A3E9\'"';
strFrame+=' title="点击这里选择时间" align=center width=42>' ;
strFrame+='   <span id=meizzHourHead></span></td>';
strFrame+='       <td style="cursor:hand" onclick="parent.tmpSelectMinuteInnerHTML(this.innerText.length==3?this.innerText.substring(0,1):this.innerText.substring(0,2))"';
strFrame+=' onmouseover="style.backgroundColor=\'#aaccf3\'" onmouseout="style.backgroundColor=\'#63A3E9\'"';
strFrame+=' title="点击这里选择时间" align=center width=42>' ;
strFrame+='   <span id=meizzMinuteHead></span></td>';
strFrame+='       <td style="cursor:hand" onclick="parent.tmpSelectSecondInnerHTML(this.innerText.length==3?this.innerText.substring(0,1):this.innerText.substring(0,2))"';
strFrame+=' onmouseover="style.backgroundColor=\'#aaccf3\'" onmouseout="style.backgroundColor=\'#63A3E9\'"';
strFrame+=' title="点击这里选择时间" align=center width=42>' ;
strFrame+='   <span id=meizzSecondHead></span></td>';
strFrame+='  </tr></table></td></tr></table></div>';
window.frames.endDateLayer.document.writeln(strFrame);
window.frames.endDateLayer.document.close(); //解决ie进度条不结束的问题
//==================================================== WEB 页面显示部分=====================================================
var outObject;
var outButton; //点击的按钮
var outDate=""; //存放对象的日期
var bUseTime=false; //是否使用时间
var odatelayer=window.frames.endDateLayer.document.all; //存放日历对象
var odatelayer=window.endDateLayer.document.all;
//odatelayer.bUseTimeLayer.innerText="NO";
bImgSwitch();
odatelayer.bUseTimeLayer.innerHTML=bImg;
function setday(tt,obj) //主调函数
{
if (arguments.length > 2){alert("对不起！传入本控件的参数太多！");return;}
if (arguments.length == 0){alert("对不起！您没有传回本控件任何参数！");return;}
var dads = document.all.endDateLayer.style;
var th = tt;
var ttop = tt.offsetTop; //TT控件的定位点高
var thei = tt.clientHeight; //TT控件本身的高
var tleft = tt.offsetLeft; //TT控件的定位点宽
var ttyp = tt.type; //TT控件的类型
while (tt = tt.offsetParent){ttop+=tt.offsetTop; tleft+=tt.offsetLeft;}
dads.top = (ttyp=="image") ? ttop+thei : ttop+thei+6;
dads.left = tleft;
outObject = (arguments.length == 1) ? th : obj;
outButton = (arguments.length == 1) ? null : th; //设定外部点击的按钮
//根据当前输入框的日期显示日历的年月
var reg = /^(\d+)-(\d{1,2})-(\d{1,2})/; //不含时间
var r = outObject.value.match(reg);
if(r!=null){
 r[2]=r[2]-1;
 var d=new Date(r[1],r[2],r[3]);
 if(d.getFullYear()==r[1] && d.getMonth()==r[2] && d.getDate()==r[3])
 {
  outDate=d;
  parent.meizzTheYear = r[1];
  parent.meizzTheMonth = r[2];
  parent.meizzTheDate = r[3];
 }
 else
 {
  outDate="";
 }
 meizzSetDay(r[1],r[2]+1);
}
else
{
 outDate="";
 meizzSetDay(new Date().getFullYear(), new Date().getMonth() + 1);
}
dads.display = '';
//判断初始化时是否使用时间,非严格验证
//if (outObject.value.length>10)
//{
 bUseTime=true;
 bImgSwitch();
 odatelayer.bUseTimeLayer.innerHTML=bImg;
 meizzWriteHead(meizzTheYear,meizzTheMonth);
//}
//else
//{
// bUseTime=false;
// bImgSwitch();
// odatelayer.bUseTimeLayer.innerHTML=bImg;
// meizzWriteHead(meizzTheYear,meizzTheMonth);
//}
try
{
 event.returnValue=false;
}
catch (e)
{
 //此处排除错误，错误原因暂未找到。
}
}
var MonHead = new Array(12); //定义阳历中每个月的最大天数
MonHead[0] = 31; MonHead[1] = 28; MonHead[2] = 31; MonHead[3] = 30; MonHead[4] = 31; MonHead[5] = 30;
MonHead[6] = 31; MonHead[7] = 31; MonHead[8] = 30; MonHead[9] = 31; MonHead[10] = 30; MonHead[11] = 31;
var meizzTheYear=new Date().getFullYear(); //定义年的变量的初始值
var meizzTheMonth=new Date().getMonth()+1; //定义月的变量的初始值
var meizzTheDate=new Date().getDate(); //定义日的变量的初始值
var meizzTheHour=new Date().getHours(); //定义小时变量的初始值
var meizzTheMinute=new Date().getMinutes();//定义分钟变量的初始值
var meizzTheSecond=new Date().getSeconds();//定义秒变量的初始值
var meizzWDay=new Array(37); //定义写日期的数组
document.onclick = (function(){
with(window.event)
{
 if (srcElement != outObject && srcElement != outButton)
 closeLayer();
}
})
document.onkeyup = (function(){
if (window.event.keyCode==27){
 if(outObject)outObject.blur();
 closeLayer();
}
else if(document.activeElement)
{
 if(document.activeElement != outObject && document.activeElement != outButton)
 {
  closeLayer();
 }
}
})
function meizzWriteHead(yy,mm,ss) //往 head 中写入当前的年与月
{
odatelayer.meizzYearHead.innerText = yy + " 年";
odatelayer.meizzMonthHead.innerText = format(mm) + " 月";
//插入当前小时、分
odatelayer.meizzHourHead.innerText=bUseTime?(meizzTheHour+" 时"):"";
odatelayer.meizzMinuteHead.innerText=bUseTime?(meizzTheMinute+" 分"):"";
odatelayer.meizzSecondHead.innerText=bUseTime?(meizzTheSecond+" 秒"):"";
}
function tmpSelectYearInnerHTML(strYear) //年份的下拉框
{
if (strYear.match(/\D/)!=null){alert("年份输入参数不是数字！");return;}
var m = (strYear) ? strYear : new Date().getFullYear();
if (m < 1000 || m > 9999) {alert("年份值不在 1000 到 9999 之间！");return;}
var n = m - 50;
if (n < 1000) n = 1000;
if (n + 101 > 9999) n = 9974;
var s = "&nbsp;<select name=tmpSelectYear style='font-size: 12px' "
s += "onblur='document.all.tmpSelectYearLayer.style.display=\"none\"' "
s += "onchange='document.all.tmpSelectYearLayer.style.display=\"none\";"
s += "parent.meizzTheYear = this.value; parent.meizzSetDay(parent.meizzTheYear,parent.meizzTheMonth)'>\r\n";
var selectInnerHTML = s;
for (var i = n; i < n + 101; i++)
{
 if (i == m) { selectInnerHTML += "<option value='" + i + "' selected>" + i + "年" + "</option>\r\n"; }
 else { selectInnerHTML += "<option value='" + i + "'>" + i + "年" + "</option>\r\n"; }
}
selectInnerHTML += "</select>";
odatelayer.tmpSelectYearLayer.style.display="";
odatelayer.tmpSelectYearLayer.innerHTML = selectInnerHTML;
odatelayer.tmpSelectYear.focus();
}
function tmpSelectMonthInnerHTML(strMonth) //月份的下拉框
{
if (strMonth.match(/\D/)!=null){alert("月份输入参数不是数字！");return;}
var m = (strMonth) ? strMonth : new Date().getMonth() + 1;
var s = "&nbsp;&nbsp;&nbsp;<select name=tmpSelectMonth style='font-size: 12px' "
s += "onblur='document.all.tmpSelectMonthLayer.style.display=\"none\"' "
s += "onchange='document.all.tmpSelectMonthLayer.style.display=\"none\";"
s += "parent.meizzTheMonth = this.value; parent.meizzSetDay(parent.meizzTheYear,parent.meizzTheMonth)'>\r\n";
var selectInnerHTML = s;
for (var i = 1; i < 13; i++)
{
 if (i == m) { selectInnerHTML += "<option value='"+i+"' selected>"+i+"月"+"</option>\r\n"; }
 else { selectInnerHTML += "<option value='"+i+"'>"+i+"月"+"</option>\r\n"; }
}
selectInnerHTML += "</select>";
odatelayer.tmpSelectMonthLayer.style.display="";
odatelayer.tmpSelectMonthLayer.innerHTML = selectInnerHTML;
odatelayer.tmpSelectMonth.focus();
}
/***** 增加 小时、分钟 ***/
function tmpSelectHourInnerHTML(strHour) //小时的下拉框
{
if (!bUseTime){return;}
if (strHour.match(/\D/)!=null){alert("小时输入参数不是数字！");return;}
var m = (strHour) ? strHour : new Date().getHours();
var s = "<select name=tmpSelectHour style='font-size: 12px' "
s += "onblur='document.all.tmpSelectHourLayer.style.display=\"none\"' "
s += "onchange='document.all.tmpSelectHourLayer.style.display=\"none\";"
s += "parent.meizzTheHour = this.value; parent.evaSetTime(parent.meizzTheHour,parent.meizzTheMinute);'>\r\n";
var selectInnerHTML = s;
for (var i = 0; i < 24; i++)
{
 if (i == m) { selectInnerHTML += "<option value='"+i+"' selected>"+i+"</option>\r\n"; }
 else { selectInnerHTML += "<option value='"+i+"'>"+i+"</option>\r\n"; }
}
selectInnerHTML += "</select>";
odatelayer.tmpSelectHourLayer.style.display="";
odatelayer.tmpSelectHourLayer.innerHTML = selectInnerHTML;
odatelayer.tmpSelectHour.focus();
}
function tmpSelectMinuteInnerHTML(strMinute) //分钟的下拉框
{
if (!bUseTime){return;}
if (strMinute.match(/\D/)!=null){alert("分钟输入参数不是数字！");return;}
var m = (strMinute) ? strMinute : new Date().getMinutes();
var s = "<select name=tmpSelectMinute style='font-size: 12px' "
s += "onblur='document.all.tmpSelectMinuteLayer.style.display=\"none\"' "
s += "onchange='document.all.tmpSelectMinuteLayer.style.display=\"none\";"
s += "parent.meizzTheMinute = this.value; parent.evaSetTime(parent.meizzTheHour,parent.meizzTheMinute);'>\r\n";
var selectInnerHTML = s;
for (var i = 0; i < 60; i++)
{
 if (i == m) { selectInnerHTML += "<option value='"+i+"' selected>"+i+"</option>\r\n"; }
 else { selectInnerHTML += "<option value='"+i+"'>"+i+"</option>\r\n"; }
}
selectInnerHTML += "</select>";
odatelayer.tmpSelectMinuteLayer.style.display="";
odatelayer.tmpSelectMinuteLayer.innerHTML = selectInnerHTML;
odatelayer.tmpSelectMinute.focus();
}
function tmpSelectSecondInnerHTML(strSecond) //秒的下拉框
{
if (!bUseTime){return;}
if (strSecond.match(/\D/)!=null){alert("分钟输入参数不是数字！");return;}
var m = (strSecond) ? strSecond : new Date().getMinutes();
var s = "<select name=tmpSelectSecond style='font-size: 12px' "
s += "onblur='document.all.tmpSelectSecondLayer.style.display=\"none\"' "
s += "onchange='document.all.tmpSelectSecondLayer.style.display=\"none\";"
s += "parent.meizzTheSecond = this.value; parent.evaSetTime(parent.meizzTheHour,parent.meizzTheMinute,parent.meizzTheSecond);'>\r\n";
var selectInnerHTML = s;
for (var i = 0; i < 60; i++)
{
 if (i == m) { selectInnerHTML += "<option value='"+i+"' selected>"+i+"</option>\r\n"; }
 else { selectInnerHTML += "<option value='"+i+"'>"+i+"</option>\r\n"; }
}
selectInnerHTML += "</select>";
odatelayer.tmpSelectSecondLayer.style.display="";
odatelayer.tmpSelectSecondLayer.innerHTML = selectInnerHTML;
odatelayer.tmpSelectSecond.focus();
}
function closeLayer() //这个层的关闭
{
var o = document.getElementById("endDateLayer");
if (o != null)
{
 o.style.display="none";
}
}
function showLayer() //这个层的关闭
{
document.all.endDateLayer.style.display="";
}
function IsPinYear(year) //判断是否闰平年
{
if (0==year%4&&((year%100!=0)||(year%400==0))) return true;else return false;
}
function GetMonthCount(year,month) //闰年二月为29天
{
var c=MonHead[month-1];if((month==2)&&IsPinYear(year)) c++;return c;
}
function GetDOW(day,month,year) //求某天的星期几
{
var dt=new Date(year,month-1,day).getDay()/7; return dt;
}
function meizzPrevY() //往前翻 Year
{
if(meizzTheYear > 999 && meizzTheYear <10000){meizzTheYear--;}
else{alert("年份超出范围（1000-9999）！");}
meizzSetDay(meizzTheYear,meizzTheMonth);
}
function meizzNextY() //往后翻 Year
{
if(meizzTheYear > 999 && meizzTheYear <10000){meizzTheYear++;}
else{alert("年份超出范围（1000-9999）！");}
meizzSetDay(meizzTheYear,meizzTheMonth);
}
function setNull()
{
outObject.value = '';
closeLayer();
}
function meizzToday() //Today Button
{
parent.meizzTheYear = new Date().getFullYear();
parent.meizzTheMonth = new Date().getMonth()+1;
parent.meizzTheDate = new Date().getDate();
parent.meizzTheHour = new Date().getHours();
parent.meizzTheMinute = new Date().getMinutes();
parent.meizzTheSecond = new Date().getSeconds();
var meizzTheSecond = new Date().getSeconds();
if (meizzTheMonth<10 && meizzTheMonth.length<2) //格式化成两位数字
{
 parent.meizzTheMonth="0"+parent.meizzTheMonth;
}
if (parent.meizzTheDate<10 && parent.meizzTheDate.length<2) //格式化成两位数字
{
 parent.meizzTheDate="0"+parent.meizzTheDate;
}
//meizzSetDay(meizzTheYear,meizzTheMonth);
if(outObject)
{
 if (bUseTime)
 {
  outObject.value= parent.meizzTheYear + "-" + format( parent.meizzTheMonth) + "-" +
    format(parent.meizzTheDate) + " " + format(parent.meizzTheHour) + ":" +
    format(parent.meizzTheMinute) + ":" + format(parent.meizzTheSecond);
    //注：在这里你可以输出改成你想要的格式
 }
 else
 {
  outObject.value= parent.meizzTheYear + "-" + format( parent.meizzTheMonth) + "-" +
    format(parent.meizzTheDate); //注：在这里你可以输出改成你想要的格式
 }
}
closeLayer();
}
function meizzPrevM() //往前翻月份
{
if(meizzTheMonth>1){meizzTheMonth--}else{meizzTheYear--;meizzTheMonth=12;}
meizzSetDay(meizzTheYear,meizzTheMonth);
}
function meizzNextM() //往后翻月份
{
if(meizzTheMonth==12){meizzTheYear++;meizzTheMonth=1}else{meizzTheMonth++}
meizzSetDay(meizzTheYear,meizzTheMonth);
}
// TODO: 整理代码
function meizzSetDay(yy,mm) //主要的写程序**********
{
meizzWriteHead(yy,mm);
//设置当前年月的公共变量为传入值
meizzTheYear=yy;
meizzTheMonth=mm;
for (var i = 0; i < 37; i++){meizzWDay[i]=""}; //将显示框的内容全部清空
var day1 = 1,day2=1,firstday = new Date(yy,mm-1,1).getDay(); //某月第一天的星期几
for (i=0;i<firstday;i++)meizzWDay[i]=GetMonthCount(mm==1?yy-1:yy,mm==1?12:mm-1)-firstday+i+1 //上个月的最后几天
for (i = firstday; day1 < GetMonthCount(yy,mm)+1; i++) { meizzWDay[i]=day1;day1++; }
for (i=firstday+GetMonthCount(yy,mm);i<37;i++) { meizzWDay[i]=day2;day2++; }
for (i = 0; i < 37; i++)
{
 var da = eval("odatelayer.meizzDay"+i) //书写新的一个月的日期星期排列
if (meizzWDay[i]!="")
{
 //初始化边框
 da.borderColorLight="#63A3E9";
 da.borderColorDark="#63A3E9";
 da.style.color="#1478eb";
 if(i<firstday) //上个月的部分
 {
  da.innerHTML="<b><font color=#BCBABC>" + meizzWDay[i] + "</font></b>";
  da.title=(mm==1?12:mm-1) +"月" + meizzWDay[i] + "日";
  da.onclick=Function("meizzDayClick(this.innerText,-1)");
  if(!outDate)
  da.style.backgroundColor = ((mm==1?yy-1:yy) == new Date().getFullYear() &&
   (mm==1?12:mm-1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ?
   "#5CEFA0":"#f5f5f5";
  else
  {
  da.style.backgroundColor =((mm==1?yy-1:yy)==outDate.getFullYear() && (mm==1?12:mm-1)== outDate.getMonth() + 1 &&
  meizzWDay[i]==outDate.getDate())? "#84C1FF" :
  (((mm==1?yy-1:yy) == new Date().getFullYear() && (mm==1?12:mm-1) == new Date().getMonth()+1 &&
  meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5");
  //将选中的日期显示为凹下去
  if((mm==1?yy-1:yy)==outDate.getFullYear() && (mm==1?12:mm-1)== outDate.getMonth() + 1 &&
  meizzWDay[i]==outDate.getDate())
  {
   da.borderColorLight="#FFFFFF";
   da.borderColorDark="#63A3E9";
  }
  }
 }
 else if (i>=firstday+GetMonthCount(yy,mm)) //下个月的部分
 {
  da.innerHTML="<b><font color=#BCBABC>" + meizzWDay[i] + "</font></b>";
  da.title=(mm==12?1:mm+1) +"月" + meizzWDay[i] + "日";
  da.onclick=Function("meizzDayClick(this.innerText,1)");
  if(!outDate)
  da.style.backgroundColor = ((mm==12?yy+1:yy) == new Date().getFullYear() &&
   (mm==12?1:mm+1) == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate()) ?
   "#5CEFA0":"#f5f5f5";
  else
  {
  da.style.backgroundColor =((mm==12?yy+1:yy)==outDate.getFullYear() && (mm==12?1:mm+1)== outDate.getMonth() + 1 &&
  meizzWDay[i]==outDate.getDate())? "#84C1FF" :
  (((mm==12?yy+1:yy) == new Date().getFullYear() && (mm==12?1:mm+1) == new Date().getMonth()+1 &&
  meizzWDay[i] == new Date().getDate()) ? "#5CEFA0":"#f5f5f5");
  //将选中的日期显示为凹下去
  if((mm==12?yy+1:yy)==outDate.getFullYear() && (mm==12?1:mm+1)== outDate.getMonth() + 1 &&
  meizzWDay[i]==outDate.getDate())
  {
   da.borderColorLight="#FFFFFF";
   da.borderColorDark="#63A3E9";
  }
  }
 }
 else //本月的部分
 {
  da.innerHTML="<b>" + meizzWDay[i] + "</b>";
  da.title=mm +"月" + meizzWDay[i] + "日";
  da.onclick=Function("meizzDayClick(this.innerText,0)"); //给td赋予onclick事件的处理
  //如果是当前选择的日期，则显示亮蓝色的背景；如果是当前日期，则显示暗黄色背景
  if(!outDate)
  da.style.backgroundColor = (yy == new Date().getFullYear() && mm == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate())?
   "#5CEFA0":"#f5f5f5";
  else
  {
  da.style.backgroundColor =(yy==outDate.getFullYear() && mm== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())?
   "#84C1FF":((yy == new Date().getFullYear() && mm == new Date().getMonth()+1 && meizzWDay[i] == new Date().getDate())?
   "#5CEFA0":"#f5f5f5");
  //将选中的日期显示为凹下去
  if(yy==outDate.getFullYear() && mm== outDate.getMonth() + 1 && meizzWDay[i]==outDate.getDate())
  {
   da.borderColorLight="#FFFFFF";
   da.borderColorDark="#63A3E9";
  }
  }
 }
  da.style.cursor="hand"
  }
 else { da.innerHTML="";da.style.backgroundColor="";da.style.cursor="default"; }
}
}
function meizzDayClick(n,ex) //点击显示框选取日期，主输入函数*************
{
parent.meizzTheDate=n;
var yy=meizzTheYear;
var mm = parseInt(meizzTheMonth)+ex; //ex表示偏移量，用于选择上个月份和下个月份的日期
var hh=meizzTheHour;
var mi=meizzTheMinute;
var se=meizzTheSecond;
//判断月份，并进行对应的处理
if(mm<1){
 yy--;
 mm=12+mm;
}
else if(mm>12){
 yy++;
 mm=mm-12;
}
if (mm < 10) {mm = "0" + mm;}
if (hh<10) {hh="0" + hh;} //时
if (mi<10) {mi="0" + mi;} //分
if (se<10) {se="0" + se;} //秒
if (outObject)
{
 if (!n) { //outObject.value="";
  return;}
 if ( n < 10){n = "0" + n;}
 WriteDateTo(yy,mm,n,hh,mi,se);
 closeLayer();
 if (bUseTime)
 {
  try
  {
  outButton.click();
  }
  catch (e)
  {
  setday(outObject);
  }
 }
}
else {closeLayer(); alert("您所要输出的控件对象并不存在！");}
}
function format(n) //格式化数字为两位字符表示
{
var m=new String();
var tmp=new String(n);
if (n<10 && tmp.length<2)
{
 m="0"+n;
}
else
{
 m=n;
}
return m;
}
function evaSetTime() //设置用户选择的小时、分钟
{
odatelayer.meizzHourHead.innerText=meizzTheHour+" 时";
odatelayer.meizzMinuteHead.innerText=meizzTheMinute+" 分";
odatelayer.meizzSecondHead.innerText=meizzTheSecond+" 秒";
WriteDateTo(meizzTheYear,meizzTheMonth,meizzTheDate,meizzTheHour,meizzTheMinute,meizzTheSecond)
}
function evaSetTimeNothing() //设置时间控件为空
{
odatelayer.meizzHourHead.innerText="";
odatelayer.meizzMinuteHead.innerText="";
odatelayer.meizzSecondHead.innerText="";
WriteDateTo(meizzTheYear,meizzTheMonth,meizzTheDate,meizzTheHour,meizzTheMinute,meizzTheSecond)
}
function evaSetTimeNow() //设置时间控件为当前时间
{
odatelayer.meizzHourHead.innerText=new Date().getHours()+" 时";
odatelayer.meizzMinuteHead.innerText=new Date().getMinutes()+" 分";
odatelayer.meizzSecondHead.innerText=new Date().getSeconds()+" 秒";
meizzTheHour = new Date().getHours();
meizzTheMinute = new Date().getMinutes();
meizzTheSecond = new Date().getSeconds();
WriteDateTo(meizzTheYear,meizzTheMonth,meizzTheDate,meizzTheHour,meizzTheMinute,meizzTheSecond)
}
function UseTime(ctl)
{
bUseTime=!bUseTime;
if (bUseTime)
{
 bImgSwitch();
 ctl.innerHTML=bImg;
 evaSetTime(); //显示时间，用户原来选择的时间
 //evaSetTimeNow(); //显示当前时间
}
else
{
 bImgSwitch();
 ctl.innerHTML=bImg;
 evaSetTimeNothing();
}
}
function WriteDateTo(yy,mm,n,hh,mi,se)
{
if (bUseTime)
{
 outObject.value= yy + "-" + format(mm) + "-" + format(n) + " " + format(hh) + ":" + format(mi) + ":" + format(se); //注：在这里你可以输出改成你想要的格式
}
else
{
 outObject.value= yy + "-" + format(mm) + "-" + format(n); //注：在这里你可以输出改成你想要的格式
}
}
function bImgSwitch()
{
if (bUseTime)
{
 bImg="开启";
}
else
{
 bImg="关闭";
}
}
</script>
<input onfocus="setday(this)" id="startTime" name="startTime">

更多关于JavaScript相关内容可查看本站专题：《JavaScript时间与日期操作技巧总结》、《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结》

希望本文所述对大家JavaScript程序设计有所帮助。

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