/*** Calendar Widget ***
 *** dynamically builds and populates a small calendar
 *
 * Copyright (c) 2012
 * Randy Webster (http://www.techraw.com/)
 * All Rights Reserved.
 *
 * This notice MUST stay intact for legal use.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version. View the license at http://www.gnu.org/licenses
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */


//-- MAKE CUSTOMIZATION CHANGES HERE --

//table border type, set to: (none | dotted | dashed | solid | double | groove | ridge | inset | outset)
var border = "solid";

//table border size, must be numeric
var border_size = 2;

//table border color in hex or color name
var border_color = "black";

//the font type
var font = "Tahoma";

//the font size
var font_size = "7";

//the font color in hex or color name
var font_color = "lime";

//day border color in hex or color name, for no border set color to match background color
var day_border = "#555555";

//the background color in hex or color name, use the word transparent for no background color
var bg_color = "transparent";

//today's highlight color in hex or color name
var today_color = "#3F3F3F";

//the font color for holidays in hex or color name
var holiday_color = "#D1D1D1";





//-- MAKE NO CHANGES PAST THIS POINT --

main();

function main() {
	var monthNames = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
	var date = new Date();
	var today = date.getDate();
	var month = date.getMonth();
	var year = (date.getYear() < 2000) ? date.getYear() + 1900 : date.getYear();

	//create css properties
	document.write("<style>");
	document.write("#calendar {background-color: " + bg_color + "; border: " + border_size + " " + border + " " + border_color + "; padding: 5px}");
	document.write("#calendar_day {background-color: " + bg_color + "; border-color: " + day_border + "}");
	document.write("#calendar_font {font-family: " + font + "; font-size: " + font_size + "pt; color: " + font_color + "; cursor: default; border-color: " + day_border + "}");
	document.write("</style>");

	//create the hosting table
	document.write("<table cellspacing=0 cellpadding=0 id='calendar'>");
	document.write("<tr><td>");

	//create the calendar table
	document.write("<table cellspacing=0 cellpadding=0 width=100%>");
	document.write("<tr><td width=100% align=center valign=middle id='calendar_font'>");
	document.write(monthNames[month] + " " + year);
	document.write("</td></tr></table>");

	create(today, month, year); //create the calendar

	document.write("</td></tr></table>");
}

function getHoliday(weekday, today, month) {
	//determine if holiday and return name

	var ymonth = month + 1;
	var date = ymonth + "/" + today;

	if ((today > 7) && (today <= 14) && (weekday == 0) && (ymonth == 5)) {
		return "Mother&#39;s Day";
	}
	else if ((today > 24) && (today <= 31) && (weekday == 1) && (ymonth == 5)) {
		return "Memorial Day";
	}
	else if ((today > 14) && (today <= 21) && (weekday == 0) && (ymonth == 6)) {
		return "Father&#39;s Day";
	}
	else if ((today > 0) && (today <= 7) && (weekday == 1) && (ymonth == 9)) {
		return "Labor Day";
	}
	else if ((today > 21) && (today <= 28) && (weekday == 4) && (ymonth == 11)) {
		return "Thanksgiving Day";
	}
	else if (date == "1/1") {
		return "New Year&#39;s Day";
	}
	else if (date == "2/14") {
		return "Valentine&#39;s Day";
	}
	else if (date == "7/4") {
		return "Independence Day";
	}
	else if (date == "10/31") {
		return "Halloween";
	}
	else if (date == "11/11") {
		return "Veteran&#39;s Day";
	}
	else if (date == "12/25") {
		return "Xmas Day";
	}
	else if (date == "12/31") {
		return "New Year&#39;s Eve";
	}
	else {
		return "";
	}
}

function getDays(month, year) {
	//return the number of days for the month

	var days = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
	
	if (month == 1)	{ //is february
		if (isLeapYear(year)) {
			return 29;
		}
		else {
			return days[month];
		}
	}
	else {
		return days[month];
	}
}

function isLeapYear(year) {
	//check for leap year
	if (((year % 4) == 0) && ((year % 100) != 0) || ((year % 400) == 0)) {
		return true;
	}
	else {
		return false;
	}
}

function setValue(weekday, today, month, value) {
	var holiday = (weekday > -1) ? getHoliday(weekday, value, month) : "";
	var bgColor = (value == today) ? today_color : bg_color;
	var fontColor = (holiday == "") ? font_color : holiday_color;
	var title = (holiday == "") ? "" : "title='" + holiday + "'";

	//create the table cell for the date
        document.write("<td align=center valign=middle id='calendar_font' " + title + " bgcolor='" + bgColor + "' width=16>");
        document.write("<font style='color: " + fontColor + "'>" + value + "</font></td>");
}

function create(today, month, year)
{
	var dayNames = new Array("Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat");
	var first = new Date (year, month, 1).getDay();
	var days = getDays(month, year) + first;
	var grid = 0;

	//create the days table
    	document.write("<table border=1 cellspacing=0 cellpadding=2 width=100% id='calendar_day'>");
     	document.write("<tr>");

	//write day names
        for (var i = 0; i < 7; i++) {
                if (i % 7 == 0) {
                        document.write("</tr>");
                        document.write("<tr>");
                }

                setValue(-1, today, month, dayNames[i]);
        }

	//insert blank days up to first
        for (var i = 0; i < first; i++) {
                if (i % 7 == 0) {
                        document.write("</tr>");
                        document.write("<tr>");
			grid++;
                }

                setValue(-1, today, month, "&nbsp;");
        }

	//write date values
        for (var i = first; i < days; i++) {
                if (i % 7 == 0) {
                        document.write("</tr>");
                        document.write("<tr>");
			grid++;
                }

                setValue(i % 7, today, month, (i - first) + 1);
        }

	//insert remaining blank days
        for (var i = days; i < (grid * 7); i++) {
                if (i % 7 == 0) {
                        document.write("</tr>");
                }

                setValue(-1, today, month, "&nbsp;");
        }

        document.write("</table>");
}