javascript 日期选择(二种)

第一种开始

<Script LANGUAGE="JavaScript">
 var months = new Array("一", "二", "三","四", "五", "六", "七", "八", "九","十", "十一", "十二");
 var daysInMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31,30, 31, 30, 31);
 var days = new Array("日","一", "二", "三","四", "五", "六");
 var classTemp;
 var today=new getToday();
 var year=today.year;
 var month=today.month;
 var newCal;

 function getDays(month, year) {
  if (1 == month) return ((0 == year % 4) && (0 != (year % 100))) ||(0 == year % 400) ? 29 : 28;
  else return daysInMonth[month];
 }

 function getToday() {
  this.now = new Date();
  this.year = this.now.getFullYear();
  this.month = this.now.getMonth();
  this.day = this.now.getDate();
 }

 function Calendar() {
  newCal = new Date(year,month,1);
  today = new getToday();  
  var day = -1;
  var startDay = newCal.getDay();
  var endDay=getDays(newCal.getMonth(), newCal.getFullYear());
  var daily = 0;
  if ((today.year == newCal.getFullYear()) &&(today.month == newCal.getMonth()))
  {
   day = today.day;
  }
  var caltable = document.all.caltable.tBodies.calendar;
  var intDaysInMonth =getDays(newCal.getMonth(), newCal.getFullYear());

  for (var intWeek = 0; intWeek < caltable.rows.length;intWeek++)
   for (var intDay = 0;intDay < caltable.rows[intWeek].cells.length;intDay++)
   {
    var cell = caltable.rows[intWeek].cells[intDay];
    var montemp=(newCal.getMonth()+1)<10?("0"+(newCal.getMonth()+1)):(newCal.getMonth()+1);        
    if ((intDay == startDay) && (0 == daily)){ daily = 1;}
    var daytemp=daily<10?("0"+daily):(daily);
    var d="<"+newCal.getFullYear()+"-"+montemp+"-"+daytemp+">";
    if(day==daily) cell.className="DayNow";
    else if(intDay==6) cell.className = "DaySat";
    else if (intDay==0) cell.className ="DaySun";
    else cell.className="Day";
    if ((daily > 0) && (daily <= intDaysInMonth))
    {
     cell.innerText = daily;
     daily++;
    } else
    {
     cell.className="CalendarTD";
     cell.innerText = "";
    }
  }
  document.all.year.value=year;
  document.all.month.value=month+1;
 }

 function subMonth()
 {
  if ((month-1)<0)
  {
   month=11;
   year=year-1;
  } else
  {
   month=month-1;
  }
  Calendar();
 }

 function addMonth()
 {
  if((month+1)>11)
  {
   month=0;
   year=year+1;
  } else
  {
   month=month+1;
  }
  Calendar();
 }

 function setDate()
 {
  if (document.all.month.value<1||document.all.month.value>12)
  {
   alert("月的有效范围在1-12之间!");
   return;
  }
  year=Math.ceil(document.all.year.value);
  month=Math.ceil(document.all.month.value-1);
  Calendar();
 }
</Script>

<Script>
function buttonOver()
{
 var obj = window.event.srcElement;
 obj.runtimeStyle.cssText = "background-color:#FFFFFF";
// obj.className="Hover";
}

function buttonOut()
{
 var obj = window.event.srcElement;
 window.setTimeout(function(){obj.runtimeStyle.cssText = "";},300);
}
</Script>

<Style>
Input {font-family: verdana;font-size: 9pt;text-decoration: none;background-color: #FFFFFF;height: 20px;border: 1px solid #666666;color:#000000;}

.Calendar {font-family: verdana;text-decoration: none;width: 170;background-color: #C0D0E8;font-size: 9pt;border:0px dotted #1C6FA5;}
.CalendarTD {font-family: verdana;font-size: 7pt;color: #000000;background-color:#f6f6f6;height: 20px;width:11%;text-align: center;}

.Title {font-family: verdana;font-size: 11pt;font-weight: normal;height: 24px;text-align: center;color: #333333;text-decoration: none;background-color: #A4B9D7;border-top-width: 1px;border-right-width: 1px;border-bottom-width: 1px;border-left-width: 1px;border-bottom-style:1px;border-top-color: #999999;border-right-color: #999999;border-bottom-color: #999999;border-left-color: #999999;}

.Day {font-family: verdana;font-size: 7pt;color:#243F65;background-color: #E5E9F2;height: 20px;width:11%;text-align: center;}
.DaySat {font-family: verdana;font-size: 7pt;color:#FF0000;text-decoration: none;background-color:#E5E9F2;text-align: center;height: 18px;width: 12%;}
.DaySun {font-family: verdana;font-size: 7pt;color: #FF0000;text-decoration: none;background-color:#E5E9F2;text-align: center;height: 18px;width: 12%;}
.DayNow {font-family: verdana;font-size: 7pt;font-weight: bold;color: #000000;background-color: #FFFFFF;height: 20px;text-align: center;}

.DayTitle {font-family: verdana;font-size: 9pt;color: #000000;background-color: #C0D0E8;height: 20px;width:11%;text-align: center;}
.DaySatTitle {font-family: verdana;font-size: 9pt;color:#FF0000;text-decoration: none;background-color:#C0D0E8;text-align: center;height: 20px;width: 12%;}
.DaySunTitle {font-family: verdana;font-size: 9pt;color: #FF0000;text-decoration: none;background-color: #C0D0E8;text-align: center;height: 20px;width: 12%;}

.DayButton {font-family: Webdings;font-size: 9pt;font-weight: bold;color: #243F65;cursor:hand;text-decoration: none;}

</Style>

<table border="0" cellpadding="0" cellspacing="1" class="Calendar" id="caltable">
<thead>
     <tr align="center" valign="middle">
  <td colspan="7" class="Title">
   <a href="javaScript:subMonth();" title="上一月" Class="DayButton">3</a> <input name="year" type="text" size="4" maxlength="4" onkeydown="if (event.keyCode==13){setDate()}" onkeyup="this.value=this.value.replace(/[^0-9]/g,'')"  onpaste="this.value=this.value.replace(/[^0-9]/g,'')"> 年 <input name="month" type="text" size="1" maxlength="2" onkeydown="if (event.keyCode==13){setDate()}" onkeyup="this.value=this.value.replace(/[^0-9]/g,'')"  onpaste="this.value=this.value.replace(/[^0-9]/g,'')"> 月 <a href="JavaScript:addMonth();" title="下一月" Class="DayButton">4</a>
  </td>
 </tr>
 <tr align="center" valign="middle">
  <Script LANGUAGE="JavaScript"> 
   document.write("<TD class=DaySunTitle id=diary >" + days[0] + "</TD>");
   for (var intLoop = 1; intLoop < days.length-1;intLoop++)
    document.write("<TD class=DayTitle id=diary>" + days[intLoop] + "</TD>");
    document.write("<TD class=DaySatTitle id=diary>" + days[intLoop] + "</TD>");
  </Script>
 </TR>
</thead>
<TBODY border=1 cellspacing="0" cellpadding="0" ID="calendar" ALIGN=CENTER ONCLICK="getDiary()">
 <Script LANGUAGE="JavaScript">
  for (var intWeeks = 0; intWeeks < 6; intWeeks++)
  {
   document.write("<TR style='cursor:hand'>");
   for (var intDays = 0; intDays < days.length;intDays++) document.write("<TD class=CalendarTD onMouseover='buttonOver();' onMouseOut='buttonOut();'></TD>");
   document.write("</TR>");
  }
 </Script>
</TBODY>
</TABLE>
<Script  LANGUAGE="JavaScript">
 Calendar();
</Script>
第一种结束

--------------------------------------------

第二种开始

<script language=javascript>
var DS_x,DS_y;

function dateSelector()  //构造dateSelector对象，用来实现一个日历形式的日期输入框。
{
  var myDate=new Date();
  this.year=myDate.getFullYear();  //定义year属性，年份，默认值为当前系统年份。
  this.month=myDate.getMonth()+1;  //定义month属性，月份，默认值为当前系统月份。
  this.date=myDate.getDate();  //定义date属性，日，默认值为当前系统的日。
  this.inputName='';  //定义inputName属性，即输入框的name，默认值为空。注意：在同一页中出现多个日期输入框，不能有重复的name！
  this.display=display;  //定义display方法，用来显示日期输入框。
}

function display()  //定义dateSelector的display方法，它将实现一个日历形式的日期选择框。
{
  var week=new Array('日','一','二','三','四','五','六');

  document.write("<style type=text/css>");
  document.write("  .ds_font td,span  { font: normal 12px 宋体; color: #000000; }");
  document.write("  .ds_border  { border: 1px solid #000000; cursor: hand; background-color: #DDDDDD }");
  document.write("  .ds_border2  { border: 1px solid #000000; cursor: hand; background-color: #DDDDDD }");
  document.write("</style>");

  document.write("<input style='text-align:center;' id='DS_"+this.inputName+"' name='"+this.inputName+"' value='"+this.year+"-"+this.month+"-"+this.date+"' title=双击可进行编缉 ondblclick='this.readOnly=false;this.focus()' onblur='this.readOnly=true' readonly>");
  document.write("<button style='width:60px;height:18px;font-size:12px;margin:1px;border:1px solid #A4B3C8;background-color:#DFE7EF;' type=button onclick=this.nextSibling.style.display='block' onfocus=this.blur()>选择日期</button>");

  document.write("<div style='position:absolute;display:none;text-align:center;width:0px;height:0px;overflow:visible' onselectstart='return false;'>");
  document.write("  <div style='position:absolute;left:-60px;top:20px;width:142px;height:165px;background-color:#F6F6F6;border:1px solid #245B7D;' class=ds_font>");
  document.write("    <table cellpadding=0 cellspacing=1 width=140 height=20 bgcolor=#CEDAE7 onmousedown='DS_x=event.x-parentNode.style.pixelLeft;DS_y=event.y-parentNode.style.pixelTop;setCapture();' onmouseup='releaseCapture();' onmousemove='dsMove(this.parentNode)' style='cursor:move;'>");
  document.write("      <tr align=center>");
  document.write("        <td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=subYear(this) title='减小年份'><<</td>");
  document.write("        <td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=subMonth(this) title='减小月份'><</td>");
  document.write("        <td width=52%><b>"+this.year+"</b><b>年</b><b>"+this.month+"</b><b>月</b></td>");
  document.write("        <td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=addMonth(this) title='增加月份'>></td>");
  document.write("        <td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=addYear(this) title='增加年份'>>></td>");
  document.write("      </tr>");
  document.write("    </table>");

  document.write("    <table cellpadding=0 cellspacing=0 width=140 height=20 onmousedown='DS_x=event.x-parentNode.style.pixelLeft;DS_y=event.y-parentNode.style.pixelTop;setCapture();' onmouseup='releaseCapture();' onmousemove='dsMove(this.parentNode)' style='cursor:move;'>");
  document.write("      <tr align=center>");
  for(i=0;i<7;i++)
    document.write("      <td>"+week[i]+"</td>");
  document.write("      </tr>");
  document.write("    </table>");

  document.write("    <table cellpadding=0 cellspacing=2 width=140 bgcolor=#EEEEEE>");
  for(i=0;i<6;i++)
  {
    document.write("    <tr align=center>");
    for(j=0;j<7;j++)
      document.write("    <td width=10% height=16 onmouseover=if(this.innerText!=''&&this.className!='ds_border2')this.className='ds_border' onmouseout=if(this.className!='ds_border2')this.className='' onclick=getvalue(this,document.all('DS_"+this.inputName+"'))></td>");
    document.write("    </tr>");
  }
  document.write("    </table>");

  document.write("    <span style=cursor:hand onclick=this.parentNode.parentNode.style.display='none'>【关闭】</span>");
  document.write("  </div>");
  document.write("</div>");

  dateShow(document.all("DS_"+this.inputName).nextSibling.nextSibling.childNodes[0].childNodes[2],this.year,this.month)
}

function subYear(obj)  //减小年份
{
  var myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
  myObj[0].innerHTML=eval(myObj[0].innerHTML)-1;
  dateShow(obj.parentNode.parentNode.parentNode.nextSibling.nextSibling,eval(myObj[0].innerHTML),eval(myObj[2].innerHTML))
}

function addYear(obj)  //增加年份
{
  var myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
  myObj[0].innerHTML=eval(myObj[0].innerHTML)+1;
  dateShow(obj.parentNode.parentNode.parentNode.nextSibling.nextSibling,eval(myObj[0].innerHTML),eval(myObj[2].innerHTML))
}

function subMonth(obj)  //减小月份
{
  var myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
  var month=eval(myObj[2].innerHTML)-1;
  if(month==0)
  {
    month=12;
    subYear(obj);
  }
  myObj[2].innerHTML=month;
  dateShow(obj.parentNode.parentNode.parentNode.nextSibling.nextSibling,eval(myObj[0].innerHTML),eval(myObj[2].innerHTML))
}

function addMonth(obj)  //增加月份
{
  var myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
  var month=eval(myObj[2].innerHTML)+1;
  if(month==13)
  {
    month=1;
    addYear(obj);
  }
  myObj[2].innerHTML=month;
  dateShow(obj.parentNode.parentNode.parentNode.nextSibling.nextSibling,eval(myObj[0].innerHTML),eval(myObj[2].innerHTML))
}

function dateShow(obj,year,month)  //显示各月份的日
{
  var myDate=new Date(year,month-1,1);
  var today=new Date();
  var day=myDate.getDay();
  var selectDate=obj.parentNode.parentNode.previousSibling.previousSibling.value.split('-');
  var length;
  switch(month)
  {
    case 1:
    case 3:
    case 5:
    case 7:
    case 8:
    case 10:
    case 12:
      length=31;
      break;
    case 4:
    case 6:
    case 9:
    case 11:
      length=30;
      break;
    case 2:
      if((year%4==0)&&(year%100!=0)||(year%400==0))
        length=29;
      else
        length=28;
  }
  for(i=0;i<obj.cells.length;i++)
  {
    obj.cells[i].innerHTML='';
    obj.cells[i].style.color='';
    obj.cells[i].className='';
  }
  for(i=0;i<length;i++)
  {
    obj.cells[i+day].innerHTML=(i+1);
    if(year==today.getFullYear()&&(month-1)==today.getMonth()&&(i+1)==today.getDate())
      obj.cells[i+day].style.color='red';
    if(year==eval(selectDate[0])&&month==eval(selectDate[1])&&(i+1)==eval(selectDate[2]))
      obj.cells[i+day].className='ds_border2';
  }
}

function getvalue(obj,inputObj)  //把选择的日期传给输入框
{
  var myObj=inputObj.nextSibling.nextSibling.childNodes[0].childNodes[0].cells[2].childNodes;
  if(obj.innerHTML)
    inputObj.value=myObj[0].innerHTML+"-"+myObj[2].innerHTML+"-"+obj.innerHTML;
  inputObj.nextSibling.nextSibling.style.display='none';
  for(i=0;i<obj.parentNode.parentNode.parentNode.cells.length;i++)
    obj.parentNode.parentNode.parentNode.cells[i].className='';
  obj.className='ds_border2'
}

function dsMove(obj)  //实现层的拖移
{
  if(event.button==1)
  {
    var X=obj.clientLeft;
    var Y=obj.clientTop;
    obj.style.pixelLeft=X+(event.x-DS_x);
    obj.style.pixelTop=Y+(event.y-DS_y);
  }
}
</script>
从
<script language=javascript>
  var myDate=new dateSelector();
  myDate.year--;
  myDate.inputName='start_date';  //注意这里设置输入框的name，同一页中日期输入框，不能出现重复的name。
  myDate.display();
</script>

第二种结束