/*
Ultimate Age calculator script- By JavaScript Kit (http://www.javascriptkit.com)
Over 200+ free scripts here!
Credit must stay intact for use
adapted by P@ for my own use
*/
var one_day=1000*60*60*24


function displayage(yr, mon, day, unit, decimal, round){
	var one_day=1000*60*60*24
	var one_month=1000*60*60*24*30
	var one_year=1000*60*60*24*30*12
	
	today=new Date()
	var pastdate=new Date(yr, mon-1, day)
	
	var countunit=unit
	var decimals=decimal
	var rounding=round
	
	finalunit=(countunit=="days")? one_day : (countunit=="months")? one_month : one_year
	decimals=(decimals<=0)? 1 : decimals*10
	
	if (unit!="years"){
		if (rounding=="rounddown")
			return (Math.floor((today.getTime()-pastdate.getTime())/(finalunit)*decimals)/decimals+" "+countunit)
		else
			return (Math.ceil((today.getTime()-pastdate.getTime())/(finalunit)*decimals)/decimals+" "+countunit)
		}
	else {
		yearspast=today.getFullYear()-yr-1
		tail=(today.getMonth()>mon-1 || today.getMonth()==mon-1 && today.getDate()>=day)? 1 : 0
		pastdate.setFullYear(today.getFullYear())
		pastdate2=new Date(today.getFullYear()-1, mon-1, day)
		tail=(tail==1)? tail+Math.floor((today.getTime()-pastdate.getTime())/(finalunit)*decimals)/decimals : Math.floor((today.getTime()-pastdate2.getTime())/(finalunit)*decimals)/decimals
		return (yearspast+tail+" "+countunit)
	}
}

//Sample usage
//displayage (year, month, day, unit, decimals, rounding)
//Unit can be "years", "months", or "days"
//Decimals specifies demical places to round to (ie: 2)
//Rounding can be "roundup" or "rounddown"

//displayage(1997, 11, 24, "years", 0, "rounddown")

//my old age function
<!--- hide script from old browsers
function AgeInDays(day,month,year) {
	// computes my age today
	dMyBirthDay = new Date(year,month,day);
	dToday = new Date();
	// my birthday day this year
	iMyAge=Math.ceil((dToday.getTime() - dMyBirthDay.getTime())/(1000*60*60*24))-1;
	return iMyAge;
}

function ageAutom(day,month,year) {
	dMyBirthDay = new Date(year,month,day);
	dToday = new Date();
	iMyAge=Math.ceil((dToday.getTime() - dMyBirthDay.getTime())/(one_day))-1;
	if (iMyAge < 30) {
		document.write(displayage(year, month, day, "days", 0, "rounddown"))
		return
	}
	if (iMyAge < 365) {
		document.write(displayage(year, month, day, "months", 0, "rounddown"))
		return
	}
	document.write(displayage(year, month, day, "years", 1, "rounddown"))
}