function poll(id, type) {
        var http_request = false;
        var request = "id="+id+"&type="+type;

        if (window.XMLHttpRequest) {
            http_request = new XMLHttpRequest();
        } else if (window.ActiveXObject) {
            try {
              http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (eror) {
              http_request = new ActiveXObject("Microsoft.XMLHTTP");
            }
        }

        http_request.onreadystatechange = function() { zpracuj(http_request,id); };
        http_request.open('POST', 'http://www.bonapetit.cz//poll.php', true);
        http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
        http_request.send(request);
   }

    function zpracuj(http_request,id) {
        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
              if(parseInt(http_request.responseText,10) == http_request.responseText) {
                document.getElementById('point_'+id).innerHTML  = http_request.responseText;
              }
              else {
                alert(http_request.responseText);
              }
            } else {
                alert('Nastala chyba při hlasování');
            }
        }
    }