<script language=javascript>
<!--
var date_x,date_y;
function display()                              // 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');       // 定义星期数组
  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='"+objyear+"-"+objmonth+"-"+objdate+"' title=双击可进行编缉 ondblclick='this.readOnly=false;this.focus()' onblur='this.readOnly=true' readonly>");          // 双击此窗口readOnly=false
  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=#cccccc onmousedown='date_x=event.x-parentNode.style.pixelLeft;date_y=event.y-parentNode.style.pixelTop;setCapture();' onmouseup='releaseCapture();'>");
  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'>&lt;&lt;</td>");
  document.write("<td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=subMonth(this) title='减小月份'>&lt;</td>");
  document.write("<td width=52%><b>"+objyear+"</b><b>年</b><b>"+objmonth+"</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'>&gt;</td>");
  document.write("<td width=12% onmouseover=this.className='ds_border' onmouseout=this.className='' onclick=addYear(this) title='增加年份'>&gt;&gt;</td>");
  document.write("</tr>");
  document.write("</table>");

  document.write("<table cellpadding=0 cellspacing=0 width=140 height=20 onmousedown='date_x=event.x-parentNode.style.pixelLeft;date_y=event.y-parentNode.style.pixelTop;setCapture();' onmouseup='releaseCapture();'>");
  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],objyear,objmonth)
}
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 (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:                                      // 显示31天的月份
    case 3:
    case 5:
    case 7:
    case 8:
    case 10:
    case 12:
      length=31;
      break;
    case 4:                                       // 显示30天的月份
    case 6:
    case 9:
    case 11:
      length=30;
      break;
    case 2:                                        // 判断2月显示的天数
      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.getYear()&&(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'
}
//-->
</script>
从
<script language=javascript>
<!--
  var myDate=new Date();
  objyear=myDate.getYear();                         // 定义getYear()方法
  objmonth=myDate.getMonth()+1;                     // 定义getMonth()方法
  objdate=myDate.getDate();                         // 定义getDate()方法
  inputName='start_date';                           // 设置输入框的name
  display();
//-->
</script>
&nbsp;到
<script language=javascript>
<!--
  inputName='end_date';                              // 设置输入框的name
  display();
//-->
</script>