好多Javascript日期选择器呀-6

<scriptlanguage=javascript>
varDS_x,DS_y;

functiondateSelector()//构造dateSelector对象，用来实现一个日历形式的日期输入框。
{
varmyDate=newDate();
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。
}

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

document.write("<styletype=text/css>");
document.write(".ds_fonttd,span{font:normal12px宋体;color:#000000;}");
document.write(".ds_border{border:1pxsolid#000000;cursor:hand;background-color:#DDDDDD}");
document.write(".ds_border2{border:1pxsolid#000000;cursor:hand;background-color:#DDDDDD}");
document.write("</style>");

document.write("<inputstyle='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("<buttonstyle='width:60px;height:18px;font-size:12px;margin:1px;border:1pxsolid#A4B3C8;background-color:#DFE7EF;'type=buttononclick=this.nextSibling.style.display='block'onfocus=this.blur()>选择日期</button>");

document.write("<divstyle='position:absolute;display:none;text-align:center;width:0px;height:0px;overflow:visible'onselectstart='returnfalse;'>");
document.write("<divstyle='position:absolute;left:-60px;top:20px;width:142px;height:165px;background-color:#F6F6F6;border:1pxsolid#245B7D;'class=ds_font>");
document.write("<tablecellpadding=0cellspacing=1width=140height=20bgcolor=#CEDAE7onmousedown='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("<tralign=center>");
document.write("<tdwidth=12%onmouseover=this.className='ds_border'onmouseout=this.className=''onclick=subYear(this)title='减小年份'><<</td>");
document.write("<tdwidth=12%onmouseover=this.className='ds_border'onmouseout=this.className=''onclick=subMonth(this)title='减小月份'><</td>");
document.write("<tdwidth=52%><b>"+this.year+"</b><b>年</b><b>"+this.month+"</b><b>月</b></td>");
document.write("<tdwidth=12%onmouseover=this.className='ds_border'onmouseout=this.className=''onclick=addMonth(this)title='增加月份'>></td>");
document.write("<tdwidth=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("<tablecellpadding=0cellspacing=0width=140height=20onmousedown='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("<tralign=center>");
for(i=0;i<7;i++)
document.write("<td>"+week[i]+"</td>");
document.write("</tr>");
document.write("</table>");

document.write("<tablecellpadding=0cellspacing=2width=140bgcolor=#EEEEEE>");
for(i=0;i<6;i++)
{
document.write("<tralign=center>");
for(j=0;j<7;j++)
document.write("<tdwidth=10%height=16onmouseover=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("<spanstyle=cursor:handonclick=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)
}

functionsubYear(obj)//减小年份
{
varmyObj=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))
}

functionaddYear(obj)//增加年份
{
varmyObj=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))
}

functionsubMonth(obj)//减小月份
{
varmyObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
varmonth=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))
}

functionaddMonth(obj)//增加月份
{
varmyObj=obj.parentNode.parentNode.parentNode.cells[2].childNodes;
varmonth=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))
}

functiondateShow(obj,year,month)//显示各月份的日
{
varmyDate=newDate(year,month-1,1);
vartoday=newDate();
varday=myDate.getDay();
varselectDate=obj.parentNode.parentNode.previousSibling.previousSibling.value.split('-');
varlength;
switch(month)
{
case1:
case3:
case5:
case7:
case8:
case10:
case12:
length=31;
break;
case4:
case6:
case9:
case11:
length=30;
break;
case2:
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';
}
}

functiongetvalue(obj,inputObj)//把选择的日期传给输入框
{
varmyObj=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'
}

functiondsMove(obj)//实现层的拖移
{
if(event.button==1)
{
varX=obj.clientLeft;
varY=obj.clientTop;
obj.style.pixelLeft=X+(event.x-DS_x);
obj.style.pixelTop=Y+(event.y-DS_y);
}
}
</script>
从
<scriptlanguage=javascript>
varmyDate=newdateSelector();
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>