/***********************************************
* Local Time script- © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
* ..............................................
* This script was heavily modified by Neil Dempster.
* Added: Extension to numbers (e.g., 1st, 2nd, etc.)
* Added: Flexibility to display format
* Added: 24 hour clock in display
* Added: Automatic DST routine
* Added: Check for Holiday and update container
* Added: Check for Weekend and update container
***********************************************/

arday = new Array("Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday")
ardate = new Array("0th","1st","2nd","3rd","4th","5th","6th","7th","8th","9th","10th","11th","12th","13th","14th","15th","16th","17th","18th","19th","20th","21st","22nd","23rd","24th","25th","26th","27th","28th","29th","30th","31st")
armonth = new Array("January ","February ","March ","April ","May ","June ","July ","August ","September ", "October ","November ","December ")
daysmonth   = new Array(31,28,31,30,31,30,31,31,30,31,30,31)
daysmonthLY = new Array(31,29,31,30,31,30,31,31,30,31,30,31)
var today = new Date();
var year = today.getYear();
var DSTstart = new Date(year,3-1,NthDay(2,1,3,year),2,0,0);
var DSTend = new Date(year,11-1,NthDay(1,1,11,year),2,0,0);
var DSTstartMS = getMS(DSTstart);
var DSTendMS = getMS(DSTend);
var offset = (60);
var todayMS = getMS(today);
if (todayMS > DSTstartMS && todayMS < DSTendMS)	offset = offset-60;

function TimeZone(tz) {
	switch (tz) {
		case 480:
			return 60
		break
		case 420:
			return 0
		break
		case 360:
			return -60
		break
		case 300:
			return -120
		break
	}
}

function check_holiday (dt_date) {
// get simple dates (month/date)
var n_date = dt_date.getDate(),
	n_month = dt_date.getMonth() + 1;
var s_date1 = n_month + '/' + n_date;
		
if (   s_date1 == '1/1'   // New Year's Day
	|| s_date1 == '7/4'   // Independence Day
	|| s_date1 == '12/25' // Christmas Day
) return true;
	
// weekday from beginning of the month (month/num/day)
var n_wday = dt_date.getDay(),
	n_wnum = Math.floor((n_date - 1) / 7) + 1;
var s_date2 = n_month + '/' + n_wnum + '/' + n_wday;
	
if (   s_date2 == '9/1/1'  // Labor Day, first Monday in September
	|| s_date2 == '11/4/4' // Thanksgiving Day, fourth Thursday in November
) return true;

// weekday number from end of the month (month/num/day)
var dt_temp = new Date (dt_date);
dt_temp.setDate(1);
dt_temp.setMonth(dt_temp.getMonth() + 1);
dt_temp.setDate(dt_temp.getDate() - 1);
n_wnum = Math.floor((dt_temp.getDate() - n_date - 1) / 7) + 1;
var s_date3 = n_month + '/' + n_wnum + '/' + n_wday;

if (   s_date3 == '5/1/1'  // Memorial Day, last Monday in May
) return true;

return false;
}

function LeapYear(year) {
    if ((year/4)   != Math.floor(year/4))   return false;
    if ((year/100) != Math.floor(year/100)) return true;
    if ((year/400) != Math.floor(year/400)) return false;
    return true;
}

function DayOfWeek(day,month,year) {
    var a = Math.floor((14 - month)/12);
    var y = year - a;
    var m = month + 12*a - 2;
    var d = (day + y + Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400) + Math.floor((31*m)/12)) % 7;
    return d+1;
}

function NthDay(nth,weekday,month,year) {
    if (nth > 0) return (nth-1)*7 + 1 + (7 + weekday - DayOfWeek((nth-1)*7 + 1,month,year))%7;
   	if (LeapYear(year)) var days = daysmonthLY;
    else                var days = daysofmonth;
    return days - (DayOfWeek(days,month,year) - weekday + 7)%7;
}

function getMS(date) {
    return Date.UTC(date.getYear(),date.getMonth(),date.getDate(),date.getHours(),date.getMinutes(),date.getSeconds())
}

function showLocalTime(container, servermode, displayversion){
if (!document.getElementById || !document.getElementById(container)) return
this.container=document.getElementById(container)
this.displayversion=displayversion
var servertimestring=(servermode=="server-php")? 'September 06, 2010 09:47:17' : (servermode=="server-ssi")? '<!--#config timefmt="%B %d, %Y %H:%M:%S"--><!--#echo var="DATE_LOCAL" -->' : '<%= Now() %>'
this.localtime=this.serverdate=new Date(servertimestring)
//var timestamp = this.localtime.getTimezoneOffset()
//offset=TimeZone(this.serverdate.getGMTOffset())
this.localtime.setTime(this.serverdate.getTime()+offset*60*1000) //add user offset to server time
this.updateTime()
this.updateContainer()
}

showLocalTime.prototype.updateTime=function(){
var thisobj=this
this.localtime.setSeconds(this.localtime.getSeconds()+1)
setTimeout(function(){thisobj.updateTime()}, 1000) //update time every second
}

showLocalTime.prototype.updateContainer=function(){
var thisobj=this
if (this.displayversion=="long")
this.container.innerHTML=this.localtime.toLocaleString()
else{
var month=this.localtime.getMonth()
var date=this.localtime.getDate()
var day=this.localtime.getDay()
var year=this.localtime.getYear()
var hour=this.localtime.getHours()
var minutes=this.localtime.getMinutes()
var seconds=this.localtime.getSeconds()
var ampm=(hour>=12)? "pm" : "am"
if (check_holiday(today))
this.container.innerHTML="Date: "+arday[day]+", "+armonth[month]+" "+ardate[date]+", "+year+'<br>'+"Time: "+formatField(hour, 1)+":"+formatField(minutes)+" "+ampm+" ["+formatHour(hour)+":"+formatMinute(minutes)+"]"+'<br>'+"Note: Today is a holiday in the USA and our office is closed."
else
if (day=='6')
this.container.innerHTML="Date: "+arday[day]+", "+armonth[month]+" "+ardate[date]+", "+year+'<br>'+"Time: "+formatField(hour, 1)+":"+formatField(minutes)+" "+ampm+" ["+formatHour(hour)+":"+formatMinute(minutes)+"]"+'<br>'+"Note: Today is Saturday and our office is currently closed."
else
if (day=='0')
this.container.innerHTML="Date: "+arday[day]+", "+armonth[month]+" "+ardate[date]+", "+year+'<br>'+"Time: "+formatField(hour, 1)+":"+formatField(minutes)+" "+ampm+" ["+formatHour(hour)+":"+formatMinute(minutes)+"]"+'<br>'+"Note: Today is Sunday and our office is currently closed."
else
this.container.innerHTML="Date: "+arday[day]+", "+armonth[month]+" "+ardate[date]+", "+year+'<br>'+"Time: "+formatField(hour, 1)+":"+formatField(minutes)+" "+ampm+" ["+formatHour(hour)+":"+formatMinute(minutes)+"]"
}
setTimeout(function(){thisobj.updateContainer()}, 1000) //update container every second
}

function formatField(num, isHour){
if (typeof isHour!="undefined"){ //if this is the hour field
	var hour=(num>12)? num-12 : num
	return (hour==0)? 12 : hour
	}
return (num<=9)? "0"+num : num//if this is minute or sec field
}

function formatHour(num){
	return (num<=9)? "0"+num : num
}

function formatMinute(num){
	return (num<=9)? "0"+num : num
}