function send_xmlhttprequest(id, state_change, method, url, content, headers) {
    var xmlhttp = (window.XMLHttpRequest ? new XMLHttpRequest() : (window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : false));
    if (!xmlhttp) {
        return false;
    }
    xmlhttp.open(method, url);
    xmlhttp.onreadystatechange = function () {
        state_change(xmlhttp, id);
    };
    headers = headers || {};
    headers['X-Requested-With'] = headers['X-Requested-With'] || 'XMLHttpRequest';
    for (var key in headers) {
        xmlhttp.setRequestHeader(key, headers[key]);
    }
    xmlhttp.send(content);
    return true;
}



function add_basket(id) {


    // odesln poadavku na aktualizaci dat
    if (!send_xmlhttprequest(id, add_basket_obsluha, 'GET', '/ajax.php?action=add_basket_ajax&id_zbozi=' + document.getElementById("zbozi-"+id).value +'&kusy=' + document.getElementById("pol-"+id).value)) {
        return false;
    }
    
    return false;

}








function add_basket_obsluha(xmlhttp, id) {
    if (xmlhttp.readyState == 4) {
    var castka = xmlhttp.responseXML.getElementsByTagName('celkem_cena');
    var polozek = xmlhttp.responseXML.getElementsByTagName('polozek');

document.getElementById('cena_celkem').innerHTML = castka[0].firstChild.data;
document.getElementById('pocet_polozek').innerHTML = polozek[0].firstChild.data;

CatalogHelper.showInfo(document.getElementById("pol-"+id), xmlhttp.responseXML.getElementsByTagName('hlaseni')[0].firstChild.data);
    }
}