function cerca(start) {
    
    var xmlhttp = newXMLHttpRequest();
    //alert("Il tuo browser supporta XMLHttpRequest")
    if (xmlhttp!=null) {        
        xmlhttp.open("POST","http://www.fratellileonelli.it/ricerca/search.php",true);
        xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
        xmlhttp.send("query=" + document.getElementById("query").value+"&search=1&start="+start+"&honda_hornet=1");
        xmlhttp.onreadystatechange = handleResponse(xmlhttp, downloadQueryResult, ResponseType.html);		
    } else {
        alert("Il tuo browser non supporta XMLHttpRequest")
    }
}

function downloadQueryResult(XMLResult) {
    document.getElementById('centro').innerHTML=XMLResult;
}