//=======================================================================================
//  以下为 JBS 专用, 调用了下面的相关函数
//=======================================================================================

//JBS专用,检查日期是否合法
//一些常用的判断
//yyyy-M-d H:m:s  
//yyyy-MM-dd HH:mm:ss
function jbs_form_checkDate( obj, format, allowNull ) {
	if( obj == null ) {
		alert( "JBS: FORM 日期控件没有定义" );
		return false;
	}

	if( obj.value == '' && allowNull == true ) {
		return true;
	}

	if( ! isDate( obj.value, format ) ) {
		if( confirm( "日期字段输入有误!" ) ) {
			obj.focus();
			obj.select();
		}
		return false;
	}
	return true;
}



//=======================================================================================
//  以下为日期格式化、检查函数
//  以下的函数代码是一个统一的整体
//=======================================================================================


// ===================================================================
// Author: Matt Kruse <matt@mattkruse.com>
// WWW: http://www.mattkruse.com/
//
// NOTICE: You may use this code for any purpose, commercial or
// private, without any further permission from the author. You may
// remove this notice from your final code if you wish, however it is
// appreciated by the author if at least my web site address is kept.
//
// You may *NOT* re-distribute this code in any way except through its
// use. That means, you can include it in your product, or your web
// site, or any other form where the code is actually being used. You
// may not put the plain javascript up on your site for download or
// include it in your javascript libraries for download. 
// If you wish to share this code with others, please just point them
// to the URL instead.
// Please DO NOT link directly to my .js files from your site. Copy
// the files to your server and use them there. Thank you.
// ===================================================================

// HISTORY
// ------------------------------------------------------------------
// May 17, 2003: Fixed bug in parseDate() for dates <1970
// March 11, 2003: Added parseDate() function
// March 11, 2003: Added "NNN" formatting option. Doesn't match up
//                 perfectly with SimpleDateFormat formats, but 
//                 backwards-compatability was required.

// ------------------------------------------------------------------
// These functions use the same 'format' strings as the 
// java.text.SimpleDateFormat class, with minor exceptions.
// The format string consists of the following abbreviations:
// 
// Field        | Full Form          | Short Form
// -------------+--------------------+-----------------------
// Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
// Month        | MMM (name or abbr.)| MM (2 digits), M (1 or 2 digits)
//              | NNN (abbr.)        |
// Day of Month | dd (2 digits)      | d (1 or 2 digits)
// Day of Week  | EE (name)          | E (abbr)
// Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
// Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
// Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
// Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
// Minute       | mm (2 digits)      | m (1 or 2 digits)
// Second       | ss (2 digits)      | s (1 or 2 digits)
// AM/PM        | a                  |
//
// NOTE THE DIFFERENCE BETWEEN MM and mm! Month=MM, not mm!
// Examples:
//  "MMM d, y" matches: January 01, 2000
//                      Dec 1, 1900
//                      Nov 20, 00
//  "M/d/yy"   matches: 01/20/00
//                      9/2/00
//  "MMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
// ------------------------------------------------------------------

var MONTH_NAMES=new Array('January','February','March','April','May','June','July','August','September','October','November','December','Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep','Oct','Nov','Dec');
var DAY_NAMES=new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sun','Mon','Tue','Wed','Thu','Fri','Sat');
function LZ(x) {return(x<0||x>9?"":"0")+x}

// ------------------------------------------------------------------
// isDate ( date_string, format_string )
// Returns true if date string matches format of format string and
// is a valid date. Else returns false.
// It is recommended that you trim whitespace around the value before
// passing it to this function, as whitespace is NOT ignored!
// ------------------------------------------------------------------
function isDate(val,format) {
	var date=getDateFromFormat(val,format);
	if (date==0) { return false; }
	return true;
	}

// -------------------------------------------------------------------
// compareDates(date1,date1format,date2,date2format)
//   Compare two date strings to see which is greater.
//   Returns:
//   1 if date1 is greater than date2
//   0 if date2 is greater than date1 of if they are the same
//  -1 if either of the dates is in an invalid format
// -------------------------------------------------------------------
function compareDates(date1,dateformat1,date2,dateformat2) {
	var d1=getDateFromFormat(date1,dateformat1);
	var d2=getDateFromFormat(date2,dateformat2);
	if (d1==0 || d2==0) {
		return -1;
		}
	else if (d1 > d2) {
		return 1;
		}
	return 0;
	}

// ------------------------------------------------------------------
// formatDate (date_object, format)
// Returns a date in the output format specified.
// The format string uses the same abbreviations as in getDateFromFormat()
// ------------------------------------------------------------------
function formatDate(date,format) {
	format=format+"";
	var result="";
	var i_format=0;
	var c="";
	var token="";
	var y=date.getYear()+"";
	var M=date.getMonth()+1;
	var d=date.getDate();
	var E=date.getDay();
	var H=date.getHours();
	var m=date.getMinutes();
	var s=date.getSeconds();
	var yyyy,yy,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
	// Convert real date parts into formatted versions
	var value=new Object();
	if (y.length < 4) {y=""+(y-0+1900);}
	value["y"]=""+y;
	value["yyyy"]=y;
	value["yy"]=y.substring(2,4);
	value["M"]=M;
	value["MM"]=LZ(M);
	value["MMM"]=MONTH_NAMES[M-1];
	value["NNN"]=MONTH_NAMES[M+11];
	value["d"]=d;
	value["dd"]=LZ(d);
	value["E"]=DAY_NAMES[E+7];
	value["EE"]=DAY_NAMES[E];
	value["H"]=H;
	value["HH"]=LZ(H);
	if (H==0){value["h"]=12;}
	else if (H>12){value["h"]=H-12;}
	else {value["h"]=H;}
	value["hh"]=LZ(value["h"]);
	if (H>11){value["K"]=H-12;} else {value["K"]=H;}
	value["k"]=H+1;
	value["KK"]=LZ(value["K"]);
	value["kk"]=LZ(value["k"]);
	if (H > 11) { value["a"]="PM"; }
	else { value["a"]="AM"; }
	value["m"]=m;
	value["mm"]=LZ(m);
	value["s"]=s;
	value["ss"]=LZ(s);
	while (i_format < format.length) {
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		if (value[token] != null) { result=result + value[token]; }
		else { result=result + token; }
		}
	return result;
	}
	
// ------------------------------------------------------------------
// Utility functions for parsing in getDateFromFormat()
// ------------------------------------------------------------------
function _isInteger(val) {
	var digits="1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i))==-1) { return false; }
		}
	return true;
	}
function _getInt(str,i,minlength,maxlength) {
	for (var x=maxlength; x>=minlength; x--) {
		var token=str.substring(i,i+x);
		if (token.length < minlength) { return null; }
		if (_isInteger(token)) { return token; }
		}
	return null;
	}
	
// ------------------------------------------------------------------
// getDateFromFormat( date_string , format_string )
//
// This function takes a date string and a format string. It matches
// If the date string matches the format string, it returns the 
// getTime() of the date. If it does not match, it returns 0.
// ------------------------------------------------------------------
function getDateFromFormat(val,format) {
	val=val+"";
	format=format+"";
	var i_val=0;
	var i_format=0;
	var c="";
	var token="";
	var token2="";
	var x,y;
	var now=new Date();
	var year=now.getYear();
	var month=now.getMonth()+1;
	var date=1;
	var hh=now.getHours();
	var mm=now.getMinutes();
	var ss=now.getSeconds();
	var ampm="";
	
	while (i_format < format.length) {
		// Get next token from format string
		c=format.charAt(i_format);
		token="";
		while ((format.charAt(i_format)==c) && (i_format < format.length)) {
			token += format.charAt(i_format++);
			}
		// Extract contents of value based on format token
		if (token=="yyyy" || token=="yy" || token=="y") {
			if (token=="yyyy") { x=4;y=4; }
			if (token=="yy")   { x=2;y=2; }
			if (token=="y")    { x=2;y=4; }
			year=_getInt(val,i_val,x,y);
			if (year==null) { return 0; }
			i_val += year.length;
			if (year.length==2) {
				if (year > 70) { year=1900+(year-0); }
				else { year=2000+(year-0); }
				}
			}
		else if (token=="MMM"||token=="NNN"){
			month=0;
			for (var i=0; i<MONTH_NAMES.length; i++) {
				var month_name=MONTH_NAMES[i];
				if (val.substring(i_val,i_val+month_name.length).toLowerCase()==month_name.toLowerCase()) {
					if (token=="MMM"||(token=="NNN"&&i>11)) {
						month=i+1;
						if (month>12) { month -= 12; }
						i_val += month_name.length;
						break;
						}
					}
				}
			if ((month < 1)||(month>12)){return 0;}
			}
		else if (token=="EE"||token=="E"){
			for (var i=0; i<DAY_NAMES.length; i++) {
				var day_name=DAY_NAMES[i];
				if (val.substring(i_val,i_val+day_name.length).toLowerCase()==day_name.toLowerCase()) {
					i_val += day_name.length;
					break;
					}
				}
			}
		else if (token=="MM"||token=="M") {
			month=_getInt(val,i_val,token.length,2);
			if(month==null||(month<1)||(month>12)){return 0;}
			i_val+=month.length;}
		else if (token=="dd"||token=="d") {
			date=_getInt(val,i_val,token.length,2);
			if(date==null||(date<1)||(date>31)){return 0;}
			i_val+=date.length;}
		else if (token=="hh"||token=="h") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>12)){return 0;}
			i_val+=hh.length;}
		else if (token=="HH"||token=="H") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>23)){return 0;}
			i_val+=hh.length;}
		else if (token=="KK"||token=="K") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<0)||(hh>11)){return 0;}
			i_val+=hh.length;}
		else if (token=="kk"||token=="k") {
			hh=_getInt(val,i_val,token.length,2);
			if(hh==null||(hh<1)||(hh>24)){return 0;}
			i_val+=hh.length;hh--;}
		else if (token=="mm"||token=="m") {
			mm=_getInt(val,i_val,token.length,2);
			if(mm==null||(mm<0)||(mm>59)){return 0;}
			i_val+=mm.length;}
		else if (token=="ss"||token=="s") {
			ss=_getInt(val,i_val,token.length,2);
			if(ss==null||(ss<0)||(ss>59)){return 0;}
			i_val+=ss.length;}
		else if (token=="a") {
			if (val.substring(i_val,i_val+2).toLowerCase()=="am") {ampm="AM";}
			else if (val.substring(i_val,i_val+2).toLowerCase()=="pm") {ampm="PM";}
			else {return 0;}
			i_val+=2;}
		else {
			if (val.substring(i_val,i_val+token.length)!=token) {return 0;}
			else {i_val+=token.length;}
			}
		}
	// If there are any trailing characters left in the value, it doesn't match
	if (i_val != val.length) { return 0; }
	// Is date valid for month?
	if (month==2) {
		// Check for leap year
		if ( ( (year%4==0)&&(year%100 != 0) ) || (year%400==0) ) { // leap year
			if (date > 29){ return 0; }
			}
		else { if (date > 28) { return 0; } }
		}
	if ((month==4)||(month==6)||(month==9)||(month==11)) {
		if (date > 30) { return 0; }
		}
	// Correct hours value
	if (hh<12 && ampm=="PM") { hh=hh-0+12; }
	else if (hh>11 && ampm=="AM") { hh-=12; }
	var newdate=new Date(year,month-1,date,hh,mm,ss);
	return newdate.getTime();
	}

// ------------------------------------------------------------------
// parseDate( date_string [, prefer_euro_format] )
//
// This function takes a date string and tries to match it to a
// number of possible date formats to get the value. It will try to
// match against the following international formats, in this order:
// y-M-d   MMM d, y   MMM d,y   y-MMM-d   d-MMM-y  MMM d
// M/d/y   M-d-y      M.d.y     MMM-d     M/d      M-d
// d/M/y   d-M-y      d.M.y     d-MMM     d/M      d-M
// A second argument may be passed to instruct the method to search
// for formats like d/M/y (european format) before M/d/y (American).
// Returns a Date object or null if no patterns match.
// ------------------------------------------------------------------
function parseDate(val) {
	var preferEuro=(arguments.length==2)?arguments[1]:false;
	generalFormats=new Array('y-M-d','MMM d, y','MMM d,y','y-MMM-d','d-MMM-y','MMM d');
	monthFirst=new Array('M/d/y','M-d-y','M.d.y','MMM-d','M/d','M-d');
	dateFirst =new Array('d/M/y','d-M-y','d.M.y','d-MMM','d/M','d-M');
	var checkList=new Array('generalFormats',preferEuro?'dateFirst':'monthFirst',preferEuro?'monthFirst':'dateFirst');
	var d=null;
	for (var i=0; i<checkList.length; i++) {
		var l=window[checkList[i]];
		for (var j=0; j<l.length; j++) {
			d=getDateFromFormat(val,l[j]);
			if (d!=0) { return new Date(d); }
			}
		}
	return null;
	}




/* 
 *以下为日期控件生成代码
 * 声明了一个控件对象 CalendarF ,可以直接使用
 * 以下的函数代码是一个统一的整体
 * 
 * 日期控件， 引用例子:
 *  <input name="dateInput" type="text" id="dateInput" size="12" maxlength="12" readonly="1" value="2003-12-22" onClick="CalendarF.show(this,this.value);" />
 */

function atCalendarControl(){
	var calendar=this;
	this.calendarPad=null;
	this.prevMonth=null;
	this.nextMonth=null;
	this.prevYear=null;
	this.nextYear=null;
	this.goToday=null;
	this.calendarClose=null;
	this.calendarAbout=null;
	this.head=null;
	this.body=null;
	this.today=[];
	this.currentDate=[];
	this.sltDate;
	this.target;
	this.source;

	/************** 加入日历底板及阴影(用于遮挡日历层下的<select>) *********************/
	this.addCalendarPad=function(){
		document.write("<div id='divCalendarpad' style='position:absolute;top:100;left:0;width:255;height:167;display:none;'>");
		document.write("<iframe frameborder=0 height=168 width=230></iframe>");
    document.write("<div style='position:absolute;top:4;left:4;width:230;height:100;background-color:#336699;'></div>");
		document.write("</div>");
		calendar.calendarPad=document.all.divCalendarpad;
	}

	/************** 加入日历面板 *********************/
	this.addCalendarBoard=function(){
		var BOARD=this;
		var divBoard=document.createElement("div");
		calendar.calendarPad.insertAdjacentElement("beforeEnd",divBoard);
		divBoard.style.cssText="position:absolute;top:0;left:0;width:150;height:150;border:1 outset;background-color:buttonface;";

		var tbBoard=document.createElement("table");
		divBoard.insertAdjacentElement("beforeEnd",tbBoard);
		tbBoard.style.cssText="position:absolute;top:0;left:0;height:10;font-size:9pt;";
		tbBoard.cellPadding=0;
		tbBoard.cellSpacing=1;
		tbBoard.bgColor="#333333";

		/************** 设置各功能按钮的功能 *********************/
		
    trRow = tbBoard.insertRow(0);
		
    /*********** 日历头上的日期 ***************/
		tbCell=trRow.insertCell(0);
		tbCell.colSpan=7;
		tbCell.bgColor="#99CCFF";
		tbCell.align="center";
		tbCell.style.cssText = "cursor:default";
		calendar.head=tbCell;
		
    /*********** 日历 清空 按钮 ***************/
		trRow = tbBoard.insertRow(1);
		calendar.calendarAbout=calendar.insertTbCell(trRow,0,"清空","center");
		calendar.calendarAbout.onclick=function(){calendar.hiden();}

		/*********** 日历 上年 按钮 ***************/
		calendar.prevYear = calendar.insertTbCell(trRow,1,"上年","center");
		calendar.prevYear.title="上一年";
		calendar.prevYear.onmousedown=function(){
			calendar.currentDate[0]--;
		calendar.show(calendar.target,calendar.currentDate[0]+"-"+calendar.currentDate[1]+"-"+calendar.currentDate[2],calendar.source);
		}


		/*********** 日历 上月 按钮 ***************/
		calendar.prevMonth = calendar.insertTbCell(trRow,2,"上月","center");
		calendar.prevMonth.title="上一月";
		calendar.prevMonth.onmousedown=function(){
			calendar.currentDate[1]--;
			if(calendar.currentDate[1]==0){
				calendar.currentDate[1]=12;
				calendar.currentDate[0]--;
			}
			calendar.show(calendar.target,calendar.currentDate[0]+"-"+calendar.currentDate[1]+"-"+calendar.currentDate[2],calendar.source);
		}

		/*********** 日历 今天 按钮 ***************/
		calendar.goToday = calendar.insertTbCell(trRow,3,"今天","center");
		calendar.goToday.title="选择今天";
		calendar.goToday.onclick=function(){

			calendar.sltDate=calendar.today[0]+"-"+calendar.today[1]+"-"+calendar.today[2];
			calendar.target.value=calendar.sltDate;
			calendar.hiden();
		}

		/*********** 日历 下月 按钮 ***************/
		calendar.nextMonth = calendar.insertTbCell(trRow,4,"下月","center");
		calendar.nextMonth.title="下一月";

		calendar.nextMonth.onmousedown=function(){
			calendar.currentDate[1]++;
			if(calendar.currentDate[1]==13){
				calendar.currentDate[1]=1;
				calendar.currentDate[0]++;
			}
			calendar.show(calendar.target,calendar.currentDate[0]+"-"+calendar.currentDate[1]+"-"+calendar.currentDate[2],calendar.source);
		}

		/*********** 日历 下年 按钮 ***************/
		calendar.nextYear = calendar.insertTbCell(trRow,5,"下年","center");
		calendar.nextYear.title="下一年";
		calendar.nextYear.onmousedown=function(){
			calendar.currentDate[0]++;
			calendar.show(calendar.target,calendar.currentDate[0]+"-"+calendar.currentDate[1]+"-"+calendar.currentDate[2],calendar.source);

		}

    /*********** 日历 取消 按钮 ***************/
		calendar.calendarClose = calendar.insertTbCell(trRow,6,"取消","center");
		calendar.calendarClose.title="关闭";
		calendar.calendarClose.onclick=function(){calendar.hiden();}

    /** 第三行 周信息**/
		trRow = tbBoard.insertRow(2);
		var cnDateName = new Array("周日","周一","周二","周三","周四","周五","周六");
		for (var i = 0; i < 7; i++) {
			tbCell=trRow.insertCell(i)
			tbCell.innerText=cnDateName[i];
			tbCell.align="center";
			tbCell.width=35;
			tbCell.style.cssText="cursor:default;border:1 solid ;width:35; #99CCCC;background-color:#99CCCC;";
		}

		/*********** 日历体（月份信息的显示） ***************/
		trRow = tbBoard.insertRow(3);
		tbCell=trRow.insertCell(0);
		tbCell.colSpan=7;
		tbCell.height=97;
		tbCell.vAlign="top";
		tbCell.bgColor="#F0F0F0";
		var tbBody=document.createElement("table");
		tbCell.insertAdjacentElement("beforeEnd",tbBody);
		tbBody.style.cssText="position:relative;top:0;left:0;height:103;width:100%;font-size:9pt;"
		tbBody.cellPadding=0;
		tbBody.cellSpacing=1;
		calendar.body=tbBody;
	}

	/************** 加入功能按钮公共样式 *********************/
	this.insertTbCell=function(trRow,cellIndex,TXT,trAlign,tbColSpan){
		var tbCell=trRow.insertCell(cellIndex);
		if(tbColSpan!=undefined) tbCell.colSpan=tbColSpan;

		var btnCell=document.createElement("button");
		tbCell.insertAdjacentElement("beforeEnd",btnCell);
		btnCell.value=TXT;
		btnCell.style.cssText="border:1;background-color:buttonface;";

		btnCell.onclick=function(){
			btnCell.blur();
		}

		return btnCell;
	}

	this.setDefaultDate=function(){
		var dftDate=new Date();

		var m = "" + ( dftDate.getMonth()+1 );
		if( m.length<2) m ="0"+m;
		var d = "" + dftDate.getDate();
		if( d.length<2) d ="0"+d;

		calendar.today[0]=dftDate.getYear();
		calendar.today[1]=m;
		calendar.today[2]=d;

		calendar.hiden();
	}


	/****************** Show Calendar *********************/
	this.show=function(targetObject,defaultDate,sourceObject){
		if(targetObject==undefined) {
			alert("未设置目标对像. \n方法: ATCALENDAR.show(obj 目标对像,string 默认日期,obj 点击对像);\n\n目标对像:接受日期返回值的对像.\n默认日期:格式为\"yyyy-mm-dd\",缺省为当日日期.\n点击对像:点击这个对像弹出calendar,默认为目标对像.\n");
			return false;
		}
		else
			calendar.target=targetObject;

		if(sourceObject==undefined) calendar.source=calendar.target;
		else calendar.source=sourceObject;

		var firstDay;
		var Cells=new Array();

		if(defaultDate==undefined || defaultDate==""){
			var theDate=new Array();
			calendar.head.innerText = calendar.today[0]+"-"+calendar.today[1]+"-"+calendar.today[2];
			theDate[0]=calendar.today[0]; theDate[1]=calendar.today[1]; theDate[2]=calendar.today[2];
		}
		else{
			var reg=/^\d{4}-\d{1,2}-\d{2}$/
			if(!defaultDate.match(reg)){
				alert("默认日期的格式不正确\n\n默认日期可接受格式为:'yyyy-mm-dd'");
				return;
			}

			var theDate=defaultDate.split("-");
			calendar.head.innerText = defaultDate;
		}

		calendar.currentDate[0]=theDate[0];
		calendar.currentDate[1]=theDate[1];
		calendar.currentDate[2]=theDate[2];
		theFirstDay=calendar.getFirstDay(theDate[0],theDate[1]);
		theMonthLen=theFirstDay+calendar.getMonthLen(theDate[0],theDate[1]);

		
		var theRows = Math.ceil((theMonthLen)/7);
		//清除旧的日历信息;
		while (calendar.body.rows.length > 0) {
			calendar.body.deleteRow(0)
		}

		//显示选择月的日历信息;
		var n=0;day=0;
		for(i=0;i<theRows;i++){
			theRow=calendar.body.insertRow(i);
			for(j=0;j<7;j++){
				n++;
				if(n>theFirstDay && n<=theMonthLen){
					day=n-theFirstDay;
					calendar.insertBodyCell(theRow,j,day);
				}
				else{
					var theCell=theRow.insertCell(j);
					theCell.style.cssText="background-color:#F0F0F0;cursor:default;";
				}
			}
		}

		//****************调整日历位置**************//
		var offsetPos=calendar.getAbsolutePos(calendar.source);//计算对像的位置;

		if((document.body.offsetHeight-(offsetPos.y+calendar.source.offsetHeight-document.body.scrollTop))<calendar.calendarPad.style.pixelHeight){		
			var calTop=offsetPos.y-calendar.calendarPad.style.pixelHeight;
		}
		else{
			var calTop=offsetPos.y+calendar.source.offsetHeight;
		}
		if((document.body.offsetWidth-(offsetPos.x+calendar.source.offsetWidth-document.body.scrollLeft))>calendar.calendarPad.style.pixelWidth){
			var calLeft=offsetPos.x;
		}
		else{
			var calLeft=calendar.source.offsetLeft+calendar.source.offsetWidth;
		}

		//如果日历出现在上面列表,下面为编辑的iframe页面时, 则日历的顶部位置为负数
		if( calTop < 0 ) calTop = 0;
		if( calLeft < 0 ) calLeft = 0;
		calendar.calendarPad.style.pixelLeft=calLeft;
		calendar.calendarPad.style.pixelTop=calTop;
    calendar.calendarPad.style.display="";
	}

	/****************** 计算对像的位置 *************************/
	this.getAbsolutePos = function(el) {
		var r = { x: el.offsetLeft, y: el.offsetTop };
		if (el.offsetParent) {
			var tmp = calendar.getAbsolutePos(el.offsetParent);
			r.x += tmp.x;
			r.y += tmp.y;
		}
		return r;
	};

	//************* 插入日期单元格 **************/
	this.insertBodyCell=function(theRow,j,day,targetObject){
		var theCell=theRow.insertCell(j);
		if(j==0) var theBgColor="#FF9999";
		else var theBgColor="#FFFFFF";
		if(day==calendar.currentDate[2]) var theBgColor="#CCCCCC";
		if(day==calendar.today[2]) var theBgColor="#99FFCC";
		theCell.bgColor=theBgColor;
		theCell.innerText=day;
		theCell.align="center";
		theCell.style.cssText="border:1 #CCCCCC;cursor:hand;";

		theCell.onclick=function(){
			if(calendar.currentDate[1].length<2) calendar.currentDate[1]="0"+calendar.currentDate[1];
			if(day.toString().length<2) day="0"+day;
			calendar.sltDate=calendar.currentDate[0]+"-"+calendar.currentDate[1]+"-"+day;
			calendar.target.value=calendar.sltDate;
			calendar.hiden();
		}
	}


	/************** 取得该月的第一天为星期几 *********************/
	this.getFirstDay=function(theYear, theMonth){
		var firstDate = new Date(theYear,theMonth-1,1);
		return firstDate.getDay();
	}
	
  /************** 取得该月共有几天 *********************/
	this.getMonthLen=function(theYear, theMonth) {
		theMonth--;
		var oneDay = 1000 * 60 * 60 * 24;
		var thisMonth = new Date(theYear, theMonth, 1);
		var nextMonth = new Date(theYear, theMonth + 1, 1);
		var len = Math.ceil((nextMonth.getTime() - thisMonth.getTime())/oneDay);
		return len;
	}
	/************** 隐藏日历 *********************/
	this.hiden=function(){
		calendar.calendarPad.style.display="none";
	}
	
  /************** 从这里开始 *********************/
	this.setup=function(defaultDate){
		calendar.addCalendarPad();
		calendar.addCalendarBoard();
		calendar.setDefaultDate();
	}

	calendar.setup();
}


//声明日期调用对象
var CalendarF = new atCalendarControl();