/***********************************************
* Dynamic Countdown 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.
***********************************************/

function cdtime(container, targetdatearray){
	if (!document.getElementById || !document.getElementById(container)) return
	this.container=document.getElementById(container)
	this.currentTime=new Date()
	this.targetdatearray = targetdatearray;
	this.chooseNextDate();	
	this.targetdate=new Date()
	this.timesup=false
	this.updateTime()
}
cdtime.prototype.chooseNextDate=function(){
	for (var i=0; i < this.targetdatearray.length; i++)
	{
		if (Date.parse(this.targetdatearray[i]) > this.currentTime) {
			//alert("next date is: " + this.targetdatearray[i]);
			this.targetdate = Date.parse(this.targetdatearray[i]);
			return true	
		}	
	}	
	return false;
}
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, sectionid){
	this.baseunit=baseunit
	this.formatresults=functionref
	this.showresults(sectionid)
}

cdtime.prototype.showresults=function(sectionid){
	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
		if (this.chooseNextDate()!=true)
		{
			this.timesup=true
			this.container.innerHTML=this.formatresults(sectionid)
			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(sectionid,dayfield, hourfield, minutefield, secondfield)
	setTimeout(function(){thisobj.showresults(sectionid)}, 1000) //update results every second
}