/***********************************************
		* 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, 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 displaystring="<div class='cd_intestazione'></div><div class='cd_main'>"+arguments[0]+":"+arguments[1]+":"+arguments[2]+":"+arguments[3]+"</div><div class='cd_didascalia'></div>"
		}
		else{ //else if target date/time met
		var displaystring="<div class='cd_intestazione'></span>"
		}
		return displaystring
		}