var xmlhttp;

function onVote()
{
	var f = document.getElementById("poll_form");
	var a = f.answer;
	var sel = -2;
	for (var i = 0; i < a.length; i++)
	{
		if (a[i].checked)
			sel = a[i].value;
	}
	if (sel > 0)
		getVote(sel);
	else
		getVote(-2);
	return false;
}

function onView()
{
	getVote(-2);
	return false;
}

function onBack()
{
	getVote(-1);
	return false;
}

function getVote(int)
{
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp == null)
	{
		alert ("Browser does not support HTTP Request");
		return;
	}
	var url = "http://www.swiss-ghostbusters.ch/poll.php";
	url = url + "?vote=" + int;
	url = url + "&sid=" + Math.random();
	xmlhttp.onreadystatechange = stateChanged;
	xmlhttp.open("GET", url, true);
	xmlhttp.send(null);
}

function stateChanged()
{
	if (xmlhttp.readyState == 4)
	{
		document.getElementById("poll").innerHTML = xmlhttp.responseText;
		var max_idx = 4;
		for(var i = 1; i <= max_idx; i++)
		{
			var bar = $('#poll_bar_' + i);
			var w = bar.css('width');
			bar.css('width', 0);
			bar.show();
			bar.animate({width: w}, 1000);
		}
	}
}

function GetXmlHttpObject()
{
	var objXMLHttp=null;
	if (window.XMLHttpRequest)
		objXMLHttp = new XMLHttpRequest();
	else if (window.ActiveXObject)
		objXMLHttp = new ActiveXObject("Microsoft.XMLHTTP");
	return objXMLHttp;
}

$(document).ready(function()
{
	getVote(-1);
});