/***********************************************
	* 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 there aren't any elements or if there was no container div passed, stop right here
		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
	}
	
	/////CUSTOM FORMAT OUTPUT FUNCTIONS BELOW//////////////////////////////
	
	//Create your own custom format function to pass into cdtime.displaycountdown()
	//Use arguments[0] to access "Days" left
	//Use arguments[1] to access "Hours" left
	//Use arguments[2] to access "Minutes" left
	//Use arguments[3] to access "Seconds" left
	
	//The values of these arguments may change depending on the "baseunit" parameter of cdtime.displaycountdown()
	//For example, if "baseunit" is set to "hours", arguments[0] becomes meaningless and contains "n/a"
	//For example, if "baseunit" is set to "minutes", arguments[0] and arguments[1] become meaningless etc
	
	
	function formatresults(){
		if (this.timesup == false){//if target date/time not yet met
		
		// if the digit to be displayed is less than 2 characters, prepend a zero: 9 -> 09
		for ( var i = 0; i <= arguments.length; i++ ) {
		
			if (arguments[i] < 10) {
				arguments[i] = "0" + arguments[i].toString();
			}
		}
			
			var displayString = "<span class='rotary_countdown'>" + arguments[0] + "<span class='cd_unit'>d</span>"+ arguments[1] + "<span class='cd_unit'>h</span>" + arguments[2] + "<span class='cd_unit'>m</span>" + arguments[3] + "<span class='cd_unit'>s</span>" + "</span>";
		}
		
		else { //else if target date/time met
			//var displayString="<span style='font-size: 16px;'>Visit us today, Friday August 28</span>";
			
			//TEMPORARY FOR AUG 28, 2009. AFTERWARD REVERT TO THE ABOVE. THIS AIN'T BEST PRACTICES
			var displayString="<span style='font-size: 24px; line-height: 36px; display: block; margin-top: -10px;'>Visit us today, <br />Friday August 28</span>";
/* 			this.container.style = "visibility: hidden"; */
		}
		
		return displayString;
	}