var xmlhttp;
var list_id;

function showHint(str,lista) {
  list_id = lista;
  xmlhttp=GetXmlHttpObject();
  if (xmlhttp==null) {
    alert ("Your browser does not support XMLHTTP!");
    return;
  }
  var url="top-ajax.php";
  url=url+"?number="+str;
  url=url+"&list_id="+lista;
  xmlhttp.onreadystatechange=stateChanged;
  xmlhttp.open("GET",url,true);
  xmlhttp.send(null);
}

function stateChanged() {
  if (xmlhttp.readyState==4) {
    document.getElementById("list"+list_id).innerHTML=xmlhttp.responseText;
  }
}

function GetXmlHttpObject() {
  if (window.XMLHttpRequest) {
    return new XMLHttpRequest();
  }
  if (window.ActiveXObject) {
    return new ActiveXObject("Microsoft.XMLHTTP");
  }
  return null;
}