/*****************************************************************************
*
* JavaScript公用函数库.
*
* Copyright (c) 2003 Zoom Networks, Inc. All Rights Reserved.
*
*  $Workfile:   calendar.js  $
*     Author:
*  $Revision:   1.1  $
*      $Date:   Jun 21 2008 09:58:28  $
*
*   $Modtime:   Jun 18 2008 10:18:16  $
*       $Log:   D:/VMData/Customer_Mgr_Ln/archives/02--源代码/webapp/emvnms/web/js/calendar.js-arc  $

   Rev 1.1   Jun 21 2008 09:58:28   zhangw
辽宁大客户现场同步

   Rev 1.0   Dec 04 2007 21:47:46   lim
Initial revision.

   Rev 1.1   Aug 20 2007 13:09:38   renxc
时间方法'tbSelMonth' 未定义解决

   Rev 1.0   Aug 01 2007 11:03:06   minmr
Initial revision.

   Rev 1.0   Jul 30 2007 16:45:12   taodm
Initial revision.

   Rev 1.1   May 22 2006 11:28:00   ouygq
无改动

   Rev 1.0   May 11 2006 18:27:16   vmadmin
Initial revision.

   Rev 1.1   Mar 13 2006 18:15:14   zhangy
没有修改

   Rev 1.0   Oct 26 2005 14:02:12   taodm
Initial revision.

   Rev 1.1   Mar 17 2004 16:50:20   taodm
修改函数fSetDate。设置日期格式为"yyyy-mm-dd"

   Rev 1.0   Nov 14 2003 15:54:58   taodm
Initial revision.
*
*****************************************************************************/

/*****************************************************************************
修改记录:
==============================================================================
修改人名: 陶迪明
修改日期: 2003-11-10 10:45:00
改动描述: 除去不必要的函数
==============================================================================
==============================================================================
修改人名: 陶迪明
修改日期: 2003-11-11 10:08:00
改动描述: 改进日历的显示。当日历在窗口右下时，在左上显示。
==============================================================================
==============================================================================
修改人名: 陶迪明
修改日期: 2004-03-17 16:49:00
改动描述: 修改函数fSetDate。设置日期格式为"yyyy-mm-dd"
==============================================================================
*/

var gdCtrl = new Object();
var goSelectTag = new Array();
var gcGray = "#808080";
var gcToggle = "#ffff00";
var gcBG = "#cccccc";

var gdCurDate = new Date();
var giYear = gdCurDate.getFullYear();
var giMonth = gdCurDate.getMonth()+1;
var giDay = gdCurDate.getDate();

//****************************************************************************
// Param: popCtrl is the widget beyond which you want this calendar to appear;
//        dateCtrl is the widget into which you want to put the selected date.
// i.e.: <input type="text" name="dc" style="text-align:center" readonly><INPUT type="button" value="V" onclick="fPopCalendar(dc,dc);return false">
//****************************************************************************
function fPopCalendar(popCtrl, dateCtrl){
	event.cancelBubble=true;
	gdCtrl = dateCtrl;
	var dateValue = popCtrl.value;
	if (dateValue != "") {
		arrDate = dateValue.split("-");
		var selYear = arrDate[0];
		var selMonth = arrDate[1]*1;
		fSetYearMon(selYear,selMonth);
	}else
	fSetYearMon(giYear, giMonth);
	var point = fGetXY(popCtrl);
	var winHeight = document.body.clientHeight;
	var winWidth = document.body.clientWidth;
	with (VicPopCal.style) {
		left = point.x;
		if (point.x+VicPopCal.offsetWidth > winWidth) {
			left = point.x - (VicPopCal.offsetWidth - popCtrl.offsetWidth);
		}
		top  = point.y+popCtrl.offsetHeight+1;
		if (point.y+popCtrl.offsetHeight+1+VicPopCal.offsetHeight > winHeight) {
			top = point.y - VicPopCal.offsetHeight - 1;
		}
		width = VicPopCal.offsetWidth;
		height = VicPopCal.offsetHeight;
		fToggleTags(point);
		visibility = 'visible';
	}
	VicPopCal.focus();
}

//Here, you could modify the locale as you need !!!!
function fSetDate(iYear, iMonth, iDay){
	gdCtrl.value = iYear + "-";
	if (iMonth < 10) {
		gdCtrl.value += "0";
	}
	gdCtrl.value += iMonth + "-"
	if (iDay < 10) {
		gdCtrl.value += "0";
	}
	gdCtrl.value += iDay; 
	fHideCalendar();
}

function fHideCalendar(){
	VicPopCal.style.visibility = "hidden";
	for (i in goSelectTag)
		goSelectTag[i].style.visibility = "visible";
	goSelectTag.length = 0;
}

function fSetSelected(aCell){
	var iOffset = 0;
	var iYear = parseInt(tbSelYear.value);
	var iMonth = parseInt(tbSelMonth.value);
	
	aCell.bgColor = gcBG;
	with (aCell.children["cellText"]){
		var iDay = parseInt(innerText);
		if (color==gcGray)
			iOffset = (Victor<10)?-1:1;
		iMonth += iOffset;
		if (iMonth<1) {
			iYear--;
			iMonth = 12;
		}else if (iMonth>12){
			iYear++;
			iMonth = 1;
		}
	}
	fSetDate(iYear, iMonth, iDay);
}

function Point(iX, iY){
	this.x = iX;
	this.y = iY;
}

function fBuildCal(iYear, iMonth) {
	var aMonth=new Array();
	for(i=1;i<7;i++)
		aMonth[i]=new Array(i);
	
	var dCalDate=new Date(iYear, iMonth-1, 1);
	var iDayOfFirst=dCalDate.getDay();
	var iDaysInMonth=new Date(iYear, iMonth, 0).getDate();
	var iOffsetLast=new Date(iYear, iMonth-1, 0).getDate()-iDayOfFirst+1;
	var iDate = 1;
	var iNext = 1;
	
	for (d = 0; d < 7; d++)
		aMonth[1][d] = (d<iDayOfFirst)?-(iOffsetLast+d):iDate++;
	for (w = 2; w < 7; w++)
		for (d = 0; d < 7; d++)
			aMonth[w][d] = (iDate<=iDaysInMonth)?iDate++:-(iNext++);
	return aMonth;
}

function fDrawCal(iYear, iMonth, iCellHeight, iDateTextSize) {
	var WeekDay = new Array("日","一","二","三","四","五","六");
	var styleTD = " bgcolor='"+gcBG+"' bordercolor='"+gcBG+"' valign='middle' align='center' height='"+iCellHeight+"' style='font:bold "+iDateTextSize+" 宋体;";
	
	with (document) {
		write("<tr>");
		for(i=0; i<7; i++)
			write("<td "+styleTD+"color:#990099' >" + WeekDay[i] + "</td>");
		write("</tr>");
		
		for (w = 1; w < 7; w++) {
			write("<tr>");
			for (d = 0; d < 7; d++) {
				write("<td id=calCell "+styleTD+"cursor:hand;' onMouseOver='this.bgColor=gcToggle' onMouseOut='this.bgColor=gcBG' onclick='fSetSelected(this)'>");
				write("<font id=cellText Victor='Liming Weng'> </font>");
				write("</td>")
				}
			write("</tr>");
		}
	}
}

function fUpdateCal(iYear, iMonth) {
	myMonth = fBuildCal(iYear, iMonth);
	var i = 0;
	for (w = 0; w < 6; w++)
		for (d = 0; d < 7; d++)
			with (cellText[(7*w)+d]) {
				Victor = i++;
				if (myMonth[w+1][d]<0) {
					color = gcGray;
					innerText = -myMonth[w+1][d];
				}else{
					color = ((d==0)||(d==6))?"red":"black";
					innerText = myMonth[w+1][d];
				}
			}
}

function fSetYearMon(iYear, iMon){
	tbSelMonth.options[iMon-1].selected = true;
	for (i = 0; i < tbSelYear.length; i++)
		if (tbSelYear.options[i].value == iYear)
			tbSelYear.options[i].selected = true;
	fUpdateCal(iYear, iMon);
}

function fPrevMonth(){
	var iMon = tbSelMonth.value;
	var iYear = tbSelYear.value;
	
	if (--iMon<1) {
		iMon = 12;
		iYear--;
	}
	
	fSetYearMon(iYear, iMon);
}

function fNextMonth(){
	var iMon = tbSelMonth.value;
	var iYear = tbSelYear.value;
	
	if (++iMon>12) {
		iMon = 1;
		iYear++;
	}
	
	fSetYearMon(iYear, iMon);
}

function fToggleTags(){
	with (document.all.tags("SELECT")){
		for (i=0; i<length; i++)
			if ((item(i).Victor!="Won")&&fTagInBound(item(i))){
				item(i).style.visibility = "hidden";
				goSelectTag[goSelectTag.length] = item(i);
			}
	}
}

function fTagInBound(aTag){
	with (VicPopCal.style){
		var l = parseInt(left);
		var t = parseInt(top);
		var r = l+parseInt(width);
		var b = t+parseInt(height);
		var ptLT = fGetXY(aTag);
		return !((ptLT.x>r)||(ptLT.x+aTag.offsetWidth<l)||(ptLT.y>b)||(ptLT.y+aTag.offsetHeight<t));
	}
}

function fGetXY(aTag){
	var oTmp = aTag;
	var pt = new Point(0,0);
	do {
		pt.x += oTmp.offsetLeft;
		pt.y += oTmp.offsetTop;
		oTmp = oTmp.offsetParent;
	} while(oTmp.tagName!="BODY");
	return pt;
}

var gMonths = new Array("&nbsp;一月","&nbsp;二月","&nbsp;三月","&nbsp;四月","&nbsp;五月","&nbsp;六月","&nbsp;七月","&nbsp;八月","&nbsp;九月","&nbsp;十月","十一月","十二月");

with (document) {
	write("<Div id='VicPopCal' onclick='event.cancelBubble=true' style='POSITION:absolute;visibility:hidden;border:2px ridge;width:10;z-index:100;'>");
	write("<table border='0' bgcolor='#6699cc'>");
	write("<TR>");
	write("<td valign='middle' align='center'><input type='button' name='PrevMonth' value='<' style='height:20;width:20;FONT:bold' onClick='fPrevMonth()'>");
	write("&nbsp;<SELECT name='tbSelYear' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
	for(i=1910;i<2030;i++)
		write("<OPTION value='"+i+"'>"+i+"年</OPTION>");
	write("</SELECT>");
	write("&nbsp;<select name='tbSelMonth' onChange='fUpdateCal(tbSelYear.value, tbSelMonth.value)' Victor='Won'>");
	for (i=0; i<12; i++)
		write("<option value='"+(i+1)+"'>"+gMonths[i]+"</option>");
	write("</SELECT>");
	write("&nbsp;<input type='button' name='PrevMonth' value='>' style='height:20;width:20;FONT:bold' onclick='fNextMonth()'>");
	write("</td>");
	write("</TR><TR>");
	write("<td align='center'>");
	write("<DIV style='background-color:teal'><table width='100%' border='0' cellpadding='2'>");
	fDrawCal(giYear, giMonth, 12, 12);
	write("</table></DIV>");
	write("</td>");
	write("</TR><TR><TD align='center'>");
	write("<B style='cursor:hand; font: bold 14 宋体' onclick='fSetDate(giYear,giMonth,giDay)' onMouseOver='this.style.color=gcToggle' onMouseOut='this.style.color=0'>今天："+giYear+"年"+giMonth+"月"+giDay+"日</B>");
	write("</TD></TR>");
	write("</TABLE></Div>");
	write("<SCRIPT event=onclick() for=document>fHideCalendar()</SCRIPT>");
}
var  tbSelMonth=document.all.tbSelMonth;
var  tbSelYear=document.all.tbSelYear;
var VicPopCal=document.all.VicPopCal;

function arrowtag(namestr,valuestr,size){
	istr=unescape('%u25bc');
	document.write("<input type='text' name='"+namestr+"' readonly value='"+valuestr+"' size='"+size+"' style='text-align: center'><input style='font-size:8pt;font-family: 宋体;' type='button' value='"+istr+"'onclick='fPopCalendar("+namestr+","+namestr+");return false'>");
}

/** 是否为整型 */
function isInteger(str){
	if (/^\d+$/.test(str) == true) {
		return true;
	}
	return false;
}

/** 是否为正确的日期(yyyy-mm-dd) */
function isValidDate(datestr){
	var dateArr = datestr.split("-");
	if (dateArr.length != 3 ) return false;
	for (i=0;i<3;i++){
		if (!isInteger(dateArr[i]))
			return false;
	}
	return true;
}


/** 日期date1是否大于date2 */
function dateBDate(date1,date2){
	if (!isValidDate(date1) || !isValidDate(date2)) 
		return false;
	var date1Arr = date1.split("-");
	var date2Arr = date2.split("-");
	
	var year1 = parseInt(date1Arr[0]);
	var month1 = parseInt(date1Arr[1]*1);
	var date1 = parseInt(date1Arr[2]*1);
	
	var year2 = parseInt(date2Arr[0]);
	var month2 = parseInt(date2Arr[1]*1);
	var date2 = parseInt(date2Arr[2]*1);
	
	if (year1 < year2) return false;
	if (year1 == year2){//年相等，判断月
		if(month1 < month2) return false;
		if(month1 == month2){//月相等，判断日
			if (date1 <= date2) return false;
		}
	}
	return true;
}

/** 日期date1是否等于date2 */
function dateEQUDate(date1,date2){
	if (!isValidDate(date1) || !isValidDate(date2)) 
		return false;
	var date1Arr = date1.split("-");
	var date2Arr = date2.split("-");
	
	var year1 = parseInt(date1Arr[0]);
	var month1 = parseInt(date1Arr[1]*1);
	var date1 = parseInt(date1Arr[2]*1);
	
	var year2 = parseInt(date2Arr[0]);
	var month2 = parseInt(date2Arr[1]*1);
	var date2 = parseInt(date2Arr[2]*1);
	
	if ((year1 != year2)||(month1 != month2)||(date1 != date2)) {
		return false;
	}
	return true;
}

/** 日期datestr是否大于等于当前日期 */

function dateBECurrent(datestr){
	if (!isValidDate(datestr)) return false;
	var currentDate = new Date();
	var cYear = currentDate.getYear();
	var cMonth = currentDate.getMonth()+1;
	var cDate = currentDate.getDate();
	var dateArr = datestr.split("-");
	var year = parseInt(dateArr[0]);
	var month = parseInt(dateArr[1]*1);
	var date = parseInt(dateArr[2]*1);
	if (year < cYear) return false;
	if (year == cYear){//年相等，判断月
		if(month < cMonth) return false;
		if(month == cMonth){//月相等，判断日
			if (date < cDate) return false;
		}
	}
	return true;
}

/** 日期datestr是否大于当前日期 */

function dateBCurrent(datestr){
	if (!isValidDate(datestr)) return false;
	var currentDate = new Date();
	var cYear = currentDate.getYear();
	var cMonth = currentDate.getMonth()+1;
	var cDate = currentDate.getDate();
	var dateArr = datestr.split("-");
	var year = parseInt(dateArr[0]);
	var month = parseInt(dateArr[1]*1);
	var date = parseInt(dateArr[2]*1);
	if (year < cYear) return false;
	if (year == cYear){//年相等，判断月
		if(month < cMonth) return false;
		if(month == cMonth){//月相等，判断日
			if (date <= cDate) return false;
		}
	}
	return true;
}

/** 开始日期、结束日期的合法性检查 */

function isDate(datestr1,datestr2){
	if (!isValidDate(datestr1) || !isValidDate(datestr2)) 
		return false;
	
	
	if (dateBCurrent(datestr1)){
		alert("开始日期不得大于当前日期！");
		return false;
	}
	if (dateBCurrent(datestr2)){
		alert("结束日期不得大于当前日期！");
		return false;
	}
	/*
	if(dateBDate(datestr2,datestr1)){        
	alert("结束日期应大于开始日期!");
	return false;
	} 
	*/
	
	var date1Arr = datestr1.split("-");
	var year1    = parseInt(date1Arr[0]);
	var month1   = parseInt(date1Arr[1]);
	var Date1    = parseInt(date1Arr[2]);
	
	var date2Arr = datestr2.split("-");
	var year2    = parseInt(date2Arr[0]);
	var month2   = parseInt(date2Arr[1]);
	var Date2    = parseInt(date2Arr[2]);
	
	if (year2 < year1) {
		alert("开始日期不能大于结束日期，请重新输入");
		return false;
	}
	
	if (year2 > year1){//跨年份
		if( year2 - year1 > 1 ){
			alert("清单查询不能超过1个月，请重新输入");
			return false;
		}
		else if( year2 - year1 == 1){
			if( (month1==12)&&(month2==1) ){
				if( Date2 > Date1 ){                   
					alert("清单查询不能超过1个月，请重新输入");
					return false;
				}
			}
			else {
				alert("清单查询不能超过1个月，请重新输入");
				return false;
			}	
		}	
	}
	else if (year2 == year1){//年相等，判断月
		
		if(month2 < month1){ //年份相等，终止月份小于起始月份
			alert("开始日期不能大于结束日期，请重新输入");
			return false;
		} 	 
		if(month2 == month1){//月相等，判断日
			if (Date2 < Date1){ 
				alert("开始日期不能大于结束日期，请重新输入");
				return false;
			}
		}
		
		else{	
			if((month2 - month1 == 1)&&(Date2 > Date1)){//判断日
				alert("清单查询不能超过1个月，请重新输入");
				return false;
			}	
		}
		if( month2 - month1 > 1){
			alert("清单查询不能超过1个月，请重新输入");
			return false;
		}
	}
	return true;
}