// JavaScript Document
var xhr;		
if (window.XMLHttpRequest)
	xhr=new XMLHttpRequest(); // code for IE7+, Firefox, Chrome, Opera, Safari
else if (window.ActiveXObject)
	xhr=new ActiveXObject("Microsoft.XMLHTTP"); // code for IE6, IE5
else
	alert("cannot use Ajax");

function givePollAnswer(qid, aid)
{
	xhr.open("GET", "./addAnswer.php?qid="+qid+"&aid="+aid);
	xhr.onreadystatechange=function ()
	{
		if(xhr.readyState == 4)
		{
			alert("Your Poll Answer has been added successfully.");
			showPollResult(xhr.responseText);
		}
	};
	xhr.send(null);
}

function showPollResult(qid)
{
	var ele=document.getElementById("poll");
	xhr.open("GET", "./pollResult.php?qid="+qid);
	xhr.onreadystatechange=function ()
	{
		if(xhr.readyState == 4)
			ele.innerHTML=xhr.responseText;
	};
	xhr.send(null);
}

function setRemaining()
{
	var xhr1;		
	if (window.XMLHttpRequest)
		xhr1=new XMLHttpRequest(); // code for IE7+, Firefox, Chrome, Opera, Safari
	else if (window.ActiveXObject)
		xhr1=new ActiveXObject("Microsoft.XMLHTTP"); // code for IE6, IE5
	else
		alert("cannot use Ajax");

	xhr1.open("GET", "./daysToGo.php");
	xhr1.onreadystatechange=function ()
	{
		if(xhr1.readyState == 4)
		{
			var arr=xhr1.responseText.split(":");
			document.getElementById("daysRemaining").innerHTML=arr[0];
			document.getElementById("hoursRemaining").innerHTML=arr[1];
			document.getElementById("minutesRemaining").innerHTML=arr[2];
			document.getElementById("secondsRemaining").innerHTML=arr[3];
		}
	};
	xhr1.send(null);
}
function showPoll()
{
	var xhr1;		
	if (window.XMLHttpRequest)
		xhr1=new XMLHttpRequest(); // code for IE7+, Firefox, Chrome, Opera, Safari
	else if (window.ActiveXObject)
		xhr1=new ActiveXObject("Microsoft.XMLHTTP"); // code for IE6, IE5
	else
		alert("cannot use Ajax");
	xhr1.open("GET", "./showPoll.php");
	xhr1.onreadystatechange=function ()
	{
		if(xhr1.readyState == 4)
			document.getElementById("poll").innerHTML=xhr1.responseText;
	};
	xhr1.send(null);
}

function giveTeams()
{
	var xhr1;		
	if (window.XMLHttpRequest)
		xhr1=new XMLHttpRequest(); // code for IE7+, Firefox, Chrome, Opera, Safari
	else if (window.ActiveXObject)
		xhr1=new ActiveXObject("Microsoft.XMLHTTP"); // code for IE6, IE5
	else
		alert("cannot use Ajax");
	xhr1.open("GET", "./giveTeams.php");
	xhr1.onreadystatechange=function ()
	{
		if(xhr1.readyState == 4)
			document.getElementById("teams").innerHTML=xhr1.responseText;
	};
	xhr1.send(null);
}