function getCookie(c_name)
	{
	if (document.cookie.length>0)
	  {
	  c_start=document.cookie.indexOf(c_name + "=");
	  if (c_start!=-1)
	    {
	    c_start=c_start + c_name.length+1;
	    c_end=document.cookie.indexOf(";",c_start);
	    if (c_end==-1) c_end=document.cookie.length;
	    return unescape(document.cookie.substring(c_start,c_end));
	    }
	  }
	return "";
	}
	
	function setCookie(c_name,value,expiredays)
	{
		var exdate=new Date();
		exdate.setDate(exdate.getDate()+expiredays);
		document.cookie=c_name+ "=" +escape(value)+
		((expiredays==null) ? "" : ";expires="+exdate.toUTCString());
	}
	
	//var answer = document.getElementById('votedAnswer').value;
	function get_radio_value()
	{
	for (var i=0; i < document.poll.answer.length; i++)
	   {
	   if (document.poll.answer[i].checked)
	      {
	      var rad_val = document.poll.answer[i].value;
		  return(rad_val);
	      }
	   }
	}
	
	function checkCookie()
	{
		var answer = get_radio_value();
		var pollId = document.getElementById('pollId').value;
		cookieResult=getCookie('poll'+pollId);
		
		//alert(document.getElementById('pollId').value);
		
		if (cookieResult != null && cookieResult != "") {
			alert("Je hebt al gestemd op deze poll");
			window.location="./?p=poll&pollId="+pollId+"&view=result";
		}
		else {
			alert('Bedankt voor je stem');
			var newName = 'poll'+pollId;
			setCookie(newName, answer, 60);
			
			var req = new Request.HTML({
				method: 'get',
				url: 'http://www.obs-lisdodde.nl/subphp/subpages/updatePoll.php',
				data: { 'pollId' : pollId , 'answer' : answer },
				onComplete: function(response) { }
			}).send();
			
			window.location="./?p=poll&pollId="+pollId+"&view=result";
		}
	}