calendar.js

物业管理和办公自动化系统

var	zz,	zv,	d, fTSR;
var	gBF=false;
var	g_MINY = 1601;
var	g_MAXY = 4500;
var	g_month	= 0;
var	g_day =	0;
var	g_year = 0;
var	g_yLow = 1990;
var	g_eC=null;
var	g_eCV="";
var	g_dFmt=GetDateFmt();
var	g_fnCB=null;

var	rgMC = new Array(12);
rgMC[0]	= 31;rgMC[1] = 28;rgMC[2] =	31;rgMC[3] = 30;rgMC[4]	= 31;rgMC[5] = 30;rgMC[6] =	31;rgMC[7] = 31;rgMC[8]	= 30;rgMC[9] = 31;rgMC[10] = 30;rgMC[11] = 31;

d =	new	Date();
fTSR=0;
zv = d.getTime();
zz = "&zz="+zv;

function GetDowStart() {return 0;}

// 日期格式
function GetDateFmt()
{
//	return "mmddyy";
	return "yymmdd";
}

// 年月日之间的分隔符为“-”
function GetDateSep()
{
	return "-";
}

function GetInputDate(t,f)
{
	var l	= t.length;
	if(0 == l) return	false;
	var cSp =	'\0';
	var sSp1 = "";
	var sSp2 = "";
	for(var i	= 0; i < t.length; i++)
	{
		var	c =	t.charAt(i);
		if(c ==	' '	|| isdigit(c)) 
			continue;
		else if(cSp	== '\0'	&& (c == '/' ||	c == '-' ||	c == '.'))
		{
			cSp =	c;
			sSp1 = t.substring(i+1,l);
		}
		else if(c == cSp) 
			sSp2 = t.substring(i+1,l);
		else if(c != cSp) 
			return false;
	}
	if(0 == sSp1.length) return false;
	var m;
	var d;
	var y; 
	if(f=="mmddyy")
	{
		m =	atoi(t);
		d =	atoi(sSp1);
		if(0 !=	sSp2.length)
			y = atoi(sSp2);
		else 
			y = DefYr(m,d);
	}
	else if(f=="ddmmyy")
	{
		m =	atoi(sSp1);
		d =	atoi(t);
		if(0 !=	sSp2.length)
			y = atoi(sSp2);
		else
			y = DefYr(m,d);
	}
	else if (f=="yymmdd")		// 增加yymmdd的处理
	{
//		alert("here");
		y = atoi(t);
		m = atoi(sSp1);
		if (0!=sSp2.length)
		{
			d = atoi(sSp2);
		}
		else
			d = DefYr(m,d);
	}
	else
	{
		if(0 ==	sSp2.length) return	false;
		m =	atoi(sSp1);
		d =	atoi(sSp2);
		y =	atoi(t);
	}
	if(y < 100)
	{
		y =	1900+y;
		while(y	< g_yLow) 
			y	= y+100;
	}
	if(y < g_MINY	|| y > g_MAXY || m < 1 || m	> 12)
		return false;
	if(d < 1 || d	> GetMonthCount(m,y))
		return false;
	g_month =	m;
	g_day	= d;
	g_year = y;
	return true;
}

function DefYr(m,d)
{
	var dt = new Date();
	var yCur = (dt.getYear() < 1000) ? 1900+dt.getYear() : dt.getYear();
	if(m-1 < dt.getMonth() ||	(m-1 ==	dt.getMonth() && d < dt.getDate()))
		return 1+yCur;
	else return
		yCur;
}

function atoi(s)
{
	var t	= 0;
	for(var i	= 0; i < s.length; i++)
	{
		var	c =	s.charAt(i);
		if(!isdigit(c))
			return t;
		else
			t = t*10 +	(c-'0');
	}
	return t;
}

function isdigit(c)
{
	return(c >= '0' &&	c <= '9');
}

function GetMonthCount(m,y)
{
	var c	= rgMC[m-1];
	if((2	== m) && IsLeapYear(y))
		c++;
	return c;
}

function IsLeapYear(y)
{
	if(0 == y	% 4	&& ((y % 100 !=	0) || (y % 400 == 0))) 
		return true;
	else
		return false;
}

//function ShowCalendar(eP,eD,eDP,dmin,dmax,fnCB)
function ShowCalendar(eP,eD,eDP,fnCB)
{
	var dseed = new Date();
	dmin = new Date(dseed.getFullYear()-100,1,1);
	dmax = new Date(dseed.getFullYear()+100, 1, 1);
	var dF=document.all.CalFrame;
	var wF=window.frames.CalFrame;

	if(null==wF.g_fCalLoaded || false==wF.g_fCalLoaded)
	{
		alert("Unable to load popup	calendar.\r\nPlease reload the page.");
		return;
	}
	wF.SetMinMax(new Date(dmin), new Date(dmax));
	g_fnCB=fnCB;

	if(eD==g_eC && "block"==dF.style.display)
	{
		if(g_eCV != eD.value &&	GetInputDate(eD.value,g_dFmt))
		{
			wF.SetInputDate(g_day,g_month,g_year);
			//alert("SetDate in ShowCalendar * 1");
			wF.SetDate(g_day,g_month,g_year);
			g_eCV=eD.value;
		}
		else
			dF.style.display="none";
	}
	else
	{
		if(GetInputDate(eD.value,g_dFmt))
		{
			wF.SetInputDate(g_day,g_month,g_year);
			//alert("SetDate in ShowCalendar * 2");
			wF.SetDate(g_day,g_month,g_year);
		}
		else if(null !=	eDP && GetInputDate(eDP.value,g_dFmt))
		{
			wF.SetInputDate(g_day,g_month,g_year);
			//alert("SetDate in ShowCalendar * 3");
			wF.SetDate(g_day,g_month,g_year);
		}
		else
		{
			//var dt=new Date(dmin);
			var dt=new Date();
			wF.SetInputDate(-1,-1,-1);
			//alert("dt="+dt);
			wF.SetDate(dt.getDate(),dt.getMonth()+1,dt.getFullYear());
		}
		var	eL=0;var eT=0;
		for(var	p=eP; p&&p.tagName!='BODY';	p=p.offsetParent)
		{
			eL+=p.offsetLeft;
			eT+=p.offsetTop;
		}
		var	eH=eP.offsetHeight;
		var	dH=dF.style.pixelHeight;
		var	sT=document.body.scrollTop;
		dF.style.left=eL;
		if(eT-dH >=	sT && eT+eH+dH > document.body.clientHeight+sT)
			dF.style.top=eT-dH;
		else
			dF.style.top=eT+eH;
		if("none"==dF.style.display)
			dF.style.display="block";
		g_eC=eD;
		g_eCV=eD.value;
	}
}

function SetDate(d,m,y)
{
	if (d==null && m==null && y==null)
	{
		g_eC.focus();
		g_eC.value = ""
		return;
	}
	var ds=GetDateSep();
	g_eC.focus();
	if("mmddyy"==g_dFmt)
		g_eC.value=m+ds+d+ds+y;
	else if("ddmmyy"==g_dFmt)
		g_eC.value=d+ds+m+ds+y;
	else if("yymmdd"==g_dFmt)
		g_eC.value =y+ds+m+ds+d;
	else
		g_eC.value=y+ds+m+ds+d;
	g_eCV=g_eC.value;
	if(null != g_fnCB	&& "" != g_fnCB)
		eval(g_fnCB);
}

function GetDOW2(d,m,y)
{
	var dt=new Date(y,m-1,d);
	return(dt.getDay()+(7-GetDowStart()))%7;
}

function LoadMonths(n)
{
	var dt=new Date();
	var m=dt.getMonth()+1;
	var y=dt.getFullYear();
	var rg=new Array(n);
	for(i=0; i < n; i++)
	{
		rg[i]=document.createElement("IMG");
		rg[i].src="/eta/months/w" +	GetDOW2(1,m,y) + "d" + GetMonthCount(m,y) +	".gif";
		m++;
		if(12 <	m)
		{
			m=1;
			y++;
		}
	}
}

LoadMonths(12);