function submitForm() {

  var parameters="";
	var field=document.getElementById('newsletter')
 	if (field) {
			parameters="email=" + encodeURIComponent(field.value) + "&" ;
  }

	var http_request=createXmlHttpRequestObject();
	http_request.onreadystatechange = function() { readyhandler(http_request); };
	http_request.open('POST', 'php/newsletter/submit.fnc.php', true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Connection", "Keep-Alive");
	http_request.send(parameters);
}

function readyhandler(http_requestobj) {
	if (http_requestobj.readyState == 4){
		if (http_requestobj.status == 200) {
			if (http_requestobj.responseText.length > 0) {
					document.getElementById("newsletter_result").innerHTML=http_requestobj.responseText;
//					var result_message = setTimeout("document.getElementById('newsletter_result').innerHTML='<br>'", 5000);
			}
		}
	}
}

function createXmlHttpRequestObject() 
{
  // will store the reference to the XMLHttpRequest object
  var xmlHttp;
  // this should work for all browsers except IE6 and older
  try
  {
    // try to create XMLHttpRequest object
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    // assume IE6 or older
    var XmlHttpVersions = new Array('MSXML2.XMLHTTP.6.0',
                                    'MSXML2.XMLHTTP.5.0',
                                    'MSXML2.XMLHTTP.4.0',
                                    'MSXML2.XMLHTTP.3.0',
                                    'MSXML2.XMLHTTP',
                                    'Microsoft.XMLHTTP');
    // try every prog id until one works
    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++) 
    {
      try 
 
      { 
        // try to create XMLHttpRequest object
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      } 
      catch (e) {}
    }
  }
  // return the created object or display an error message
  if (!xmlHttp)
  {
    alert("Error creating the XMLHttpRequest object.");
  	return false;
	}
	else 
  {
	  return xmlHttp;
	}
}