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 id='DS_"+this.inputName+"' name='"+this.inputName+"' ondblclick='this.readOnly=false;this.focus()'   onblur='this.readOnly=true'   size='10'   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("<IMG style='CURSOR: hand' onclick=this.nextSibling.style.display='block' onfocus='this.blur()' src='/images/date_icon.jpg' align=absMiddle>");   
    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,'"+this.inputName+"')   title='减小年份'><<</td>");   
    document.write("   <td   width=12%   onmouseover=this.className='ds_border'   onmouseout=this.className=''   onclick=subMonth(this,'"+this.inputName+"')   title='减小月份'><</td>");   
    document.write("   <td   width=52%><b>"+(parseInt(this.year)+parseInt(1))+"</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,'"+this.inputName+"')   title='增加月份'>></td>");   
    document.write("   <td   width=12%   onmouseover=this.className='ds_border'   onmouseout=this.className=''   onclick=addYear(this,'"+this.inputName+"')   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+parseInt(1),this.month,this.inputName)   
  }   
  function   subYear(obj,inputName)   //减小年份   
  {   
  var   myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;   
  var   yuanDate=new   Date(eval(myObj[0].innerHTML)-1,eval(myObj[2].innerHTML),1)   
    var   xinDate=new   Date(new   Date().getYear(),new   Date().getMonth(),1)   
  if(yuanDate>xinDate)   
  {   
  myObj[0].innerHTML=eval(myObj[0].innerHTML)-1;   
    dateShow(obj.parentNode.parentNode.parentNode.nextSibling.nextSibling,eval(myObj[0].innerHTML),eval(myObj[2].innerHTML),inputName)   
  }   
  }   
  function   addYear(obj,inputName)   //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),inputName)   
  }   
  function   subMonth(obj,inputName)   //减小月份   
  {   
    var   myObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;   
    var   yuanDate=new   Date(eval(myObj[0].innerHTML),eval(myObj[2].innerHTML)-1,1)   
    var   xinDate=new   Date(new   Date().getYear(),new   Date().getMonth(),1)   
    if(yuanDate>xinDate)   
    {   
    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),inputName)   
    }   
  }   
  function   addMonth(obj,inputName)   //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),inputName)   
  }   
  function   dateShow(obj,year,month,inputName)   //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++)   
    {   
  if((year==today.getFullYear())&&(month==(today.getMonth()+1))&&(i<today.getDate()-1))   
  {   
  obj.cells[i+day].style.color="#0000ff";   
  obj.cells[i+day].onclick="return   false";   
  obj.cells[i+day].onmouseover="return   false";   
  obj.cells[i+day].onmouseout="return   false";   
  }   
  else   
  {   
  obj.cells[i+day].onclick=function   ShowClick()   
  {   
  getvalue(this,document.getElementById("DS_"+inputName))   
  }   
  obj.cells[i+day].onmouseover=function   ShowmouseOver()   
  {   
  if(this.innerText!=''&&this.className!='ds_border2')this.className='ds_border'   
  }   
  obj.cells[i+day].onmouseout=function   ShowmouseOut()   
  {   
  if(this.className!='ds_border2')this.className=''   
  }   
  }   
    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);   
    }   
  }