function setCookie (name, value, expires, path, domain, secure) {
      document.cookie = name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}



function getCookie(name) {
	var cookie = " " + document.cookie;
	var search = " " + name + "=";
	var setStr = null;
	var offset = 0;
	var end = 0;
	if (cookie.length > 0) {
		offset = cookie.indexOf(search);
		if (offset != -1) {
			offset += search.length;
			end = cookie.indexOf(";", offset)
			if (end == -1) {
				end = cookie.length;
			}
			setStr = unescape(cookie.substring(offset, end));
		}
	}
	return(setStr);
}



  

var xmlHttp = false;

if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
  xmlHttp = new XMLHttpRequest();
}

function updatePage() {
  
  if (xmlHttp.readyState == 4) {
    var response = xmlHttp.responseText;
    document.getElementById("questions_div").innerHTML = response;
  }
}

var isvoice = getCookie("isvoice1");
if (isvoice == "yes")
  {
    var url = "/add_voice.php?inner=y";
  xmlHttp.open("GET", url, true);
  xmlHttp.onreadystatechange = updatePage;
  xmlHttp.send(null);
  }  

function SetVoice(id)
{
  var isvoice = getCookie("isvoice1");
  
  if (isvoice == "yes")
      document.getElementById("questions_div").innerHTML = "Вы уже голосовали";
  else
  {
    setCookie("isvoice1","yes","","/","study.ru");
     var url = "/add_voice.php?inner=y&what=add&id="+id;
     xmlHttp.open("GET", url, true);
     xmlHttp.onreadystatechange = updatePage;
     xmlHttp.send(null);
     document.getElementById("result_div").innerHTML = "Спасибо, Ваш голос учтён";
  }
    
}