var req;

function loadUrl(urlStr, params) {
  if(window.XMLHttpRequest) {
    try { req = new XMLHttpRequest();
    } catch(e) { req = false; }
  } else if(window.ActiveXObject) {
    try { req = new ActiveXObject('Msxml2.XMLHTTP');
    } catch(e) {
    try { req = new ActiveXObject('Microsoft.XMLHTTP');
    } catch(e) { req = false; }
  } }
  if(req) {
		req.onreadystatechange = dataLoaded;

    req.open('POST', urlStr, true);
 		req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    req.setRequestHeader('Content-length', params.length);
    req.setRequestHeader('Connection', 'close');
    req.send(params);
  }
}

function dataLoaded() {
  if (req.readyState == 4 && req.status == 200 ) {
  	/*
  	var resp = req.responseText;
  	alert(resp);
  	*/
	}
}

function logDetails() { 
	loadUrl('/caller-id/logdetails.php', 'urlstr=' + encodeURIComponent(location.href) + '&refstr=' + encodeURIComponent(document.referrer)); 
}