function cdtime(container, targetdate)
{
	if (!document.getElementById || !document.getElementById(container)) return
	this.container=document.getElementById(container)
	this.currentTime=new Date()
	this.targetdate=new Date(targetdate)
	this.timesup=false
	this.updateTime()
}

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

cdtime.prototype.displaycountdown=function(baseunit, functionref)
{
	this.baseunit=baseunit
	this.formatresults=functionref
	this.showresults()
}

cdtime.prototype.showresults=function()
{
	var thisobj=this

	var timediff=(this.targetdate-this.currentTime)/1000 //difference btw target date and current date, in seconds
	if (timediff<0)
	{ //if time is up
		this.timesup=true
		this.container.innerHTML=this.formatresults()
		return
	}
	var oneMinute=60 //minute unit in seconds
	var oneHour=60*60 //hour unit in seconds
	var oneDay=60*60*24 //day unit in seconds
	var dayfield=Math.floor(timediff/oneDay)
	var hourfield=Math.floor((timediff-dayfield*oneDay)/oneHour)
	var minutefield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour)/oneMinute)
	var secondfield=Math.floor((timediff-dayfield*oneDay-hourfield*oneHour-minutefield*oneMinute))
	if (this.baseunit=="hours")
	{ //if base unit is hours, set "hourfield" to be topmost level
		hourfield=dayfield*24+hourfield
		dayfield="n/a"
	}
	else if (this.baseunit=="minutes")
	{ //if base unit is minutes, set "minutefield" to be topmost level
		minutefield=dayfield*24*60+hourfield*60+minutefield
		dayfield=hourfield="n/a"
	}
	else if (this.baseunit=="seconds")
	{ //if base unit is seconds, set "secondfield" to be topmost level
		var secondfield=timediff
		dayfield=hourfield=minutefield="n/a"
	}
	this.container.innerHTML=this.formatresults(dayfield, hourfield, minutefield, secondfield)
	setTimeout(function(){thisobj.showresults()}, 1000) //update results every second
}

function formatresults()
{
	if (this.timesup==false){//if target date/time not yet met

	var ar0 = arguments[0]+""
	var ar1 = arguments[1]+""
	var ar2 = arguments[2]+""
	var ar3 = arguments[3]+""
	var j = "jours "
	var h = "heures"
	var m = "minutes"
	var s = "secondes"
	var date_fra = document.getElementById('date_fra').value;
	var displaystring= ar0.bold().fontcolor('#D30808') + " " + j.fontcolor("#000")+ " " +ar1.bold().fontcolor('#D30808')+ " " + h.fontcolor("#000")+ "<br />" +ar2.bold().fontcolor('#D30808')+ " " + m.fontcolor("#000")+ " " +ar3.bold().fontcolor('#D30808')+ " " + s.fontcolor("#000")+"<br /><span style='color:#D30808'>avant le <b>" + date_fra + "</b></span><br /><br />"
	}
	else{ //else if target date/time met
	var displaystring="<br /><br />Bientôt...<br /><br />".fontcolor('#D30808');
	}
	return displaystring
}
