date-picker.js

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var weekend = [0,6];
var weekendColor = "#CEDBE6";
var fontface = "Verdana";
var fontsize = 2;
var gNow = new Date();
var ggWinCal;

isNav = (navigator.appName.indexOf("Netscape") != -1) ? true : false;
isIE = (navigator.appName.indexOf("Microsoft") != -1) ? true : false;

Calendar.Months = ["January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"];

// Non-Leap year Month days..
Calendar.DOMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
// Leap year Month days..
Calendar.lDOMonth = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

function Calendar(p_item, p_WinCal, p_month, p_year, p_format) {
	if ((p_month == null) && (p_year == null))	return;

	if (p_WinCal == null)
		this.gWinCal = ggWinCal;
	else
		this.gWinCal = p_WinCal;

	if (p_month == null) {
		this.gMonthName = null;
		this.gMonth = null;
		this.gYearly = true;
	} else {
		this.gMonthName = Calendar.get_month(p_month);
		this.gMonth = new Number(p_month);
		this.gYearly = false;
	}

	this.gYear = p_year;
	this.gFormat = p_format;
	this.gBGColor = "white";
	this.gFGColor = "black";
	this.gTextColor = "black";
	this.gHeaderColor = "white";
	this.gHeaderBGColor = "#6178AD";
	this.gReturnItem = p_item;
}

Calendar.get_month = Calendar_get_month;
Calendar.get_daysofmonth = Calendar_get_daysofmonth;
Calendar.calc_month_year = Calendar_calc_month_year;
Calendar.print = Calendar_print;

function Calendar_get_month(monthNo) {
	return Calendar.Months[monthNo];
}

function Calendar_get_daysofmonth(monthNo, p_year) {
	/*
	Check for leap year ..
	1.Years evenly divisible by four are normally leap years, except for...
	2.Years also evenly divisible by 100 are not leap years, except for...
	3.Years also evenly divisible by 400 are leap years.
	*/
	if ((p_year % 4) == 0) {
		if ((p_year % 100) == 0 && (p_year % 400) != 0)
			return Calendar.DOMonth[monthNo];

		return Calendar.lDOMonth[monthNo];
	} else
		return Calendar.DOMonth[monthNo];
}

function Calendar_calc_month_year(p_Month, p_Year, incr) {
	/*
	Will return an 1-D array with 1st element being the calculated month
	and second being the calculated year
	after applying the month increment/decrement as specified by 'incr' parameter.
	'incr' will normally have 1/-1 to navigate thru the months.
	*/
	var ret_arr = new Array();

	if (incr == -1) {
		// B A C K W A R D
		if (p_Month == 0) {
			ret_arr[0] = 11;
			ret_arr[1] = parseInt(p_Year) - 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) - 1;
			ret_arr[1] = parseInt(p_Year);
		}
	} else if (incr == 1) {
		// F O R W A R D
		if (p_Month == 11) {
			ret_arr[0] = 0;
			ret_arr[1] = parseInt(p_Year) + 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) + 1;
			ret_arr[1] = parseInt(p_Year);
		}
	}

	return ret_arr;
}

function Calendar_print() {
	ggWinCal.print();
}

function Calendar_calc_month_year(p_Month, p_Year, incr) {
	/*
	Will return an 1-D array with 1st element being the calculated month
	and second being the calculated year
	after applying the month increment/decrement as specified by 'incr' parameter.
	'incr' will normally have 1/-1 to navigate thru the months.
	*/
	var ret_arr = new Array();

	if (incr == -1) {
		// B A C K W A R D
		if (p_Month == 0) {
			ret_arr[0] = 11;
			ret_arr[1] = parseInt(p_Year) - 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) - 1;
			ret_arr[1] = parseInt(p_Year);
		}
	} else if (incr == 1) {
		// F O R W A R D
		if (p_Month == 11) {
			ret_arr[0] = 0;
			ret_arr[1] = parseInt(p_Year) + 1;
		}
		else {
			ret_arr[0] = parseInt(p_Month) + 1;
			ret_arr[1] = parseInt(p_Year);
		}
	}

	return ret_arr;
}

// This is for compatibility with Navigator 3, we have to create and discard one object before the prototype object exists.
new Calendar();

Calendar.prototype.getMonthlyCalendarCode = function() {
	var vCode = "";
	var vHeader_Code = "";
	var vData_Code = "";

	// Begin Table Drawing code here..
	vCode = vCode + "<TABLE BORDER=1 bordercolordark=#ffffff bordercolorlight=#7A9CB7 CELLSPACING=0 CELLPADDING=0 BGCOLOR=\"" + this.gBGColor + "\">";

	vHeader_Code = this.cal_header();
	vData_Code = this.cal_data();
	vCode = vCode + vHeader_Code + vData_Code;

	vCode = vCode + "</TABLE>";

	return vCode;
}

Calendar.prototype.show = function() {
	var vCode = "";

	this.gWinCal.document.open();

	// Setup the page...
	this.wwrite("<html>");
	this.wwrite("<head><title>客户管理系统</title>");
	this.wwrite("</head>");

	this.wwrite("<body bgcolor=#F5F7F8 " +
		"link=\"" + this.gLinkColor + "\" " +
		"vlink=\"" + this.gLinkColor + "\" " +
		"alink=\"" + this.gLinkColor + "\" " +
		"text=\"" + this.gTextColor + "\">");
//	this.wwriteA("<FONT FACE='" + fontface + "' SIZE=2><B>");
//	this.wwriteA(this.gMonthName + " " + this.gYear);
//	this.wwriteA("</B><BR>");

	// Show navigation buttons
	var prevMMYYYY = Calendar.calc_month_year(this.gMonth, this.gYear, -1);
	var prevMM = prevMMYYYY[0];
	var prevYYYY = prevMMYYYY[1];

	var nextMMYYYY = Calendar.calc_month_year(this.gMonth, this.gYear, 1);
	var nextMM = nextMMYYYY[0];
	var nextYYYY = nextMMYYYY[1];

	this.wwrite("<TABLE WIDTH='100%' BORDER=1 bordercolordark=#ffffff bordercolorlight=#7A9CB7 CELLSPACING=0 CELLPADDING=1 BGCOLOR=\"" + this.gBGColor + "\">");

	this.wwrite("<TR><TD COLSPAN='2' width='60%' ALIGN='center'>");
	this.wwrite("<select size=1 name=Year onchange=javascript:window.opener.Build('"+p_item+"','"+this.gMonth+"',options[selectedIndex].value,'"+ p_format+"');>");

	for(x=1940 ; x < 2011; x++)
	{
		if (x == parseInt(this.gYear))
		{
			sCheck="selected";
		}
		else
		{
			sCheck="";
		}

		this.wwrite("<option value="+x+" "+sCheck+">西元"+x+"年</option>");
	}

	this.wwrite("</select></td><TD COLSPAN='2' width='40%' ALIGN='center'>");

	this.wwrite("<select size=1 name=Month onchange=javascript:window.opener.Build('"+p_item+"',options[selectedIndex].value,'"+ this.gYear+"','"+ p_format+"');>");
	var sCheck ="";
	for(j=0 ; j <12; j++)
	{
		if (j == parseInt(this.gMonth))
		{
			sCheck="selected";
		}
		else
		{
			sCheck="";
		}

		this.wwrite("<option value="+j+" "+sCheck+">"+(j+1)+"月</option>");
	}

	this.wwrite("</select>");

	this.wwrite("</TD></TR>");



	this.wwrite("<TR><TD ALIGN=center WIDTH='30%'>");

	if((parseInt(this.gYear)-1)>1939)
	{
	this.wwrite("[<A HREF=\"" +
		"javascript:window.opener.Build(" +
		"'" + this.gReturnItem + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)-1) + "', '" + this.gFormat + "'" +
		");" +
		"\"><<<\/A>]</TD><TD ALIGN=center WIDTH='30%'>");
	}
	else
	{
		this.wwrite("&nbsp;</TD><TD ALIGN=center WIDTH='30%'>");
	}

	if((parseInt(this.gYear)+1)<2011)
	{

	this.wwrite("[<A HREF=\"" +
		"javascript:window.opener.Build(" +
		"'" + this.gReturnItem + "', '" + this.gMonth + "', '" + (parseInt(this.gYear)+1) + "', '" + this.gFormat + "'" +
		");" +
		"\">>><\/A>]</TD><TD ALIGN=center WIDTH='20%'>");
	}
	else
	{
		this.wwrite("&nbsp;</TD><TD ALIGN=center WIDTH='20%'>");
	}



	this.wwrite("[<A HREF=\"" +
		"javascript:window.opener.Build(" +
		"'" + this.gReturnItem + "', '" + prevMM + "', '" + prevYYYY + "', '" + this.gFormat + "'" +
		");" +
		"\"><<\/A>]</TD><TD ALIGN=center WIDTH='20%'>");

	this.wwrite("[<A HREF=\"" +
		"javascript:window.opener.Build(" +
		"'" + this.gReturnItem + "', '" + nextMM + "', '" + nextYYYY + "', '" + this.gFormat + "'" +
		");" +
		"\">><\/A>]</TD></TR>");

	this.wwrite("</TABLE>");

	// Get the complete calendar code for the month..
	vCode = this.getMonthlyCalendarCode();
	this.wwrite(vCode);

	this.wwrite("</font></body></html>");
	this.gWinCal.document.close();
}

Calendar.prototype.showY = function() {
	var vCode = "";
	var i;
	var vr, vc, vx, vy;		// Row, Column, X-coord, Y-coord
	var vxf = 285;			// X-Factor
	var vyf = 200;			// Y-Factor
	var vxm = 10;			// X-margin
	var vym;				// Y-margin
	if (isIE)	vym = 75;
	else if (isNav)	vym = 25;

	this.gWinCal.document.open();

	this.wwrite("<html>");
	this.wwrite("<head><title>Calendar</title>");
	this.wwrite("<style type='text/css'>\n<!--");
	for (i=0; i<12; i++) {
		vc = i % 3;
		if (i>=0 && i<= 2)	vr = 0;
		if (i>=3 && i<= 5)	vr = 1;
		if (i>=6 && i<= 8)	vr = 2;
		if (i>=9 && i<= 11)	vr = 3;

		vx = parseInt(vxf * vc) + vxm;
		vy = parseInt(vyf * vr) + vym;

		this.wwrite(".lclass" + i + " {position:absolute;top:" + vy + ";left:" + vx + ";}");
	}
	this.wwrite("-->\n</style>");
	this.wwrite("</head>");