js实现精确到秒的日期选择器完整实例

<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);
/