<script>
function none() { };
function make_sync_request(url) {
  var r;
  if (window.XMLHttpRequest) {
    r = new XMLHttpRequest();
    r.onreadystatechange = none;
    r.open("GET", url, false);
    r.send(null);
    }
  else if (window.ActiveXObject) {
    r = new ActiveXObject("Microsoft.XMLHTTP");
    if (!r)
      r = new ActiveXObject("Msxml2.XMLHTTP");
    if (r) {
      r.onreadystatechange = none;
      r.open("GET", url, false);
      r.send(null);
      }
    }
  document.getElementById('txt').innerHTML=responceTEXT;
  }
</script>
<input type='button' onClick="make_sync_request('xx.php')"
value='second' />
<br/>
<div id='txt'></div>