//调用方法:onclick="return Calendar('输入框ID');"
var MonthDNum=new Array(0,31,28,31,30,31,30,31,31,30,31,30,31);
var MonthText=new Array("","一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月");
var Calendar_obj,Calendar_obj2;
//var WriteHead=1;
document.write('')
/*头部信息CSS及JS函数*/
var HeadMsg=''+
''+
'var mdown,sy,ey,sm,em,HideSelect=1,CurrentSelect,year,month,day;function Scroll(str,key)'+
'{var Html="",s,e,obj,d;'+
'if(key=="Y"){s=sy;e=ey;obj="SelectYearItem";d="年";}if(key=="M"){s=sm;e=em;obj="SelectMonthItem";d="";}'+
'if(str=="Up"){s--;e--;}if(str=="Next"){s++;e++;}'+
'if(key=="Y"){sy=s;ey=e;}if(key=="M"){if(s<1)s=1;if(s>6)s=6;if(e<7)e=7;if(e>12)e=12;sm=s;em=e;}'+
'for(i=s;i<=e;i++){Html+=\'\'+parent.MonthText[i]:i+\',\'+month+\',\'+day+\');">\'+i;Html+=d+"";}'+
'document.getElementById(obj).innerHTML=Html;}'+
'function KeyDown(str){if(str==38){Scroll("Up",CurrentSelect);}if(str==40){Scroll("Next",CurrentSelect);}}'+
'function ShowSelect(str,str2){HideSelect=0;HSelect();Scroll(\'\',str2);document.getElementById(str).style.display="block";CurrentSelect=str2}'+
'function HSelect(){document.getElementById("SelectYear").style.display="none";document.getElementById("SelectMonth").style.display="none";}'+
'function Calendar_GetDate(y,m,d)'+
'{var objEvent=window.event||arguments.callee.caller.arguments[0];'+
'var srcElement=objEvent.srcElement;'+
'if(!srcElement){srcElement=objEvent.target;}'+
'if(srcElement.tagName=="A"){parent.Calendar_GetDate(y,m,srcElement.innerHTML);}}'+
'document.onclick=function(){if(HideSelect){HSelect();}HideSelect=1;}
'+
''+
'';
function Calendar_Show(year,month,day)
{
var content;
var date=new Date();
var DayNum=(IsLeapYear(year) && month==2)?MonthDNum[month]+1:MonthDNum[month];
var date2=new Date(year,month-1,1)
var start=date2.getDay();
var date2=null;
var Trn=Math.ceil((DayNum+start)/7);
var PrNum=1;
content='year='+year+',month='+month+',day='+day+',sy=year-3;ey=year+3;'+
'sm=(month-3<1)?1:(+month-3>6)?6:month-3;'+
'em=(month+3<7)?7:(month+3>12)?12:month+3;'+
''+year+'年
6
'+
''+MonthText[month]+'
6
';
content+=' '+
'- ×
'+
'
'+
'
'+
'
';
var date=null;
if(start>0){content+='';}
for(i=1;i<=DayNum;i++)
{
content+='- '+PrNum+'
';
PrNum++;
}
content+='
';
//层定位
var Calendar=document.getElementById('divCalendar');
Calendar.style.height=66+21*Trn+'px'; //框架高度
divCalendar.document.open()
divCalendar.document.write(HeadMsg+content);
divCalendar.document.close()
var p=Calendar_obj;
var eT=0,eL=0,eH=0,dH=0,sT=0,eP=p
while(p && p.tagName!="BODY"){
eT+=p.offsetTop; //距窗口顶部距离
eL+=p.offsetLeft; //距窗口左边距离
p=p.offsetParent;}
var eH=eP.offsetHeight; //输入框高度
var eW=eP.offsetWidth; //输入框宽度
var dH=Calendar.style.pixelHeight; //框架高度
Calendar.style.top=(eT+dH>document.body.scrollHeight && eT-dH>=0)?eT-dH+'px':eT+eH+'px';
Calendar.style.left=(eL+206>document.body.scrollWidth && eL-206+eW>=0)?eL-206+eW+'px':eL+'px';
setTimeout("document.getElementById('divCalendar').style.display=''",1);
}
/*是否润年*/
function IsLeapYear(y){
if(0==y%4 && ((y%100!=0)||(y%400==0))){return true;}
else{return false;}
}
function Calendar_Modif(y,m,d)
{
if(m<1){m=12;y=y-1;}
if(m>12){m=1;y=y+1;}
var num=(IsLeapYear(y) && m==2)?MonthDNum[m]+1:MonthDNum[m];
if(d>num){d=num;}
Calendar_Show(y,m,d)
}
function Calendar(obj,obj2)
{
var p=Calendar_obj=document.getElementById(obj);
Calendar_obj2=document.getElementById(obj2);
var re=/\d{4}-\d{1,2}-\d{1,2}/;
var arr,Sdate;
arr=re.exec(Calendar_obj.value);
if(arr!=null){Sdate=Calendar_obj.value;}
else{var mydate=new Date();
Sdate=mydate.getFullYear()+'-'+(mydate.getMonth()+1)+'-'+mydate.getDate();}
Sdate=Sdate.split("-");
Calendar_Show(parseInt(Sdate[0]),parseInt(Sdate[1]),parseInt(Sdate[2]));
}
function Calendar_GetDate(y,m,d)
{
if(!Calendar_obj2||d!=0){
if(d>0){Calendar_obj.value=y+'-'+m+'-'+d;}
else{
var objEvent=divCalendar.event||arguments.callee.caller.arguments[0];
var srcElement=objEvent.srcElement;
if(!srcElement){srcElement=objEvent.target;}
Calendar_obj.value=y+'-'+m+'-'+srcElement.innerHTML;
}
}
else{
if(IsLeapYear(y) && m==2){num=MonthDNum[m]+1;}
else{num=MonthDNum[m];}
Calendar_obj.value=y+'-'+m+'-1';
Calendar_obj2.value=y+'-'+m+'-'+num;
}
Calendar_hide();}
function Calendar_hide()
{document.getElementById("divCalendar").style.display="none";}
document.onclick=Calendar_hide;