/***********************************************
* 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.container.innerHTML=this.formatresults(0,0,0,0);
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(0,0,0,0);
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 displayCountDown(){
if (this.timesup==false){ //if target date/time not yet met
var displaystring="<span class='count_down'>"+arguments[0]+" <sup>days</sup> "+arguments[1]+" <sup>hours</sup> "+arguments[2]+" <sup>minutes</sup> "+arguments[3]+" <sup>seconds</sup></span>";
}
else{ //else if target date/time met
var displaystring="" ;//Don't display any text
}
return displaystring;
}