var xmlHttp;
var rootdomain="http://"+window.location.hostname;

function getContents(url, id, value, method)
{
	function changeTheElement()
	{
		if (xmlHttp.readyState==4)
		{
			document.getElementById(id).innerHTML = xmlHttp.responseText;
		} else {
			document.getElementById(id).innerHTML="<div align=\"center\"><h2>Loading please wait...</h2><br/><br/><img src=\"http://www.forkie.com/img/loading/loading.gif\" border=\"0\" title=\"Loading\" align=\"center\"><div>";
		}
	}

if (value=="none")
{
  if (id == "event_attendees") {
  	document.getElementById("attendees_list").style.visibility = "hidden";
  }
  document.getElementById(id).innerHTML="";
  return;
} else {
  if (id == "event_attendees") {
  	document.getElementById("attendees_list").style.visibility = "visible";
  }
}
if (url.length==0)
  {
  	document.getElementById(id).innerHTML="<div>URL is blank....<div>";
  return;
  }
xmlHttp=GetXmlHttpObject();

if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }

xmlHttp.onreadystatechange = changeTheElement;

//Kill the Cache problem in IE.
var now = "uid=" + new Date().getTime();
url += (url.indexOf("?")+1) ? "&" : "?";
url += now;

var parameters = null;

if(method=="POST") {
	var parts = url.split("\?");
	url = parts[0];
	parameters = parts[1];
} else { method = "GET"; }

xmlHttp.open(method, url, true);

if(method=="POST") {
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", parameters.length);
	xmlHttp.setRequestHeader("Connection", "close");
}

xmlHttp.send(parameters);

}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

function AJAXPost(url, formName, returnElement) {
	// This function prepares data for the passed form to be posted via the AJAX post method
	var theForm = document.getElementById(formName);
	var formElement = null;
	var postData = null;
	for(var i = 0; i < theForm.length; i++) {
		formElement = theForm.elements[i];
		if (i==0) {
			postData = theForm.elements[i].name + "=" + escape(theForm.elements[i].value);
		} else {
            if (theForm.elements[i].type == "checkbox") {
	           if (theForm.elements[i].checked) {
	           		postData = postData + "&" + theForm.elements[i].name + "=" + theForm.elements[i].value;
	           }
            } else if (theForm.elements[i].type == "radio") {
               if (theForm.elements[i].checked) {
                  postData = postData + "&" + theForm.elements[i].name + "=" + theForm.elements[i].value;
               }
            } else {
				postData = postData + "&" + theForm.elements[i].name + "=" + escape(theForm.elements[i].value);
			}
		}
	}

	url = url + "?" + postData;

	getContents(url, returnElement, "", "POST");
	// alert(url);
}

/** XHConn - Simple XMLHTTP Interface - bfults@gmail.com - 2005-04-08        **
 ** Code licensed under Creative Commons Attribution-ShareAlike License      **
 ** http://creativecommons.org/licenses/by-sa/2.0/                           **/
function XHConn()
{
  var xmlhttp, bComplete = false;
  try { xmlhttp = new ActiveXObject("Msxml2.XMLHTTP"); }
  catch (e) { try { xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); }
  catch (e) { try { xmlhttp = new XMLHttpRequest(); }
  catch (e) { xmlhttp = false; }}}
  if (!xmlhttp) return null;
  this.connect = function(sURL, sMethod, sVars, fnDone)
  {
    if (!xmlhttp) return false;
    bComplete = false;
    sMethod = sMethod.toUpperCase();

    try {
      if (sMethod == "GET")
      {
        xmlhttp.open(sMethod, sURL+"?"+sVars, true);
        sVars = "";
      }
      else
      {
        xmlhttp.open(sMethod, sURL, true);
        xmlhttp.setRequestHeader("Method", "POST "+sURL+" HTTP/1.1");
        xmlhttp.setRequestHeader("Content-Type",
          "application/x-www-form-urlencoded");
      }
      xmlhttp.onreadystatechange = function(){
        if (xmlhttp.readyState == 4 && !bComplete)
        {
          bComplete = true;
          fnDone(xmlhttp);
        }};
      xmlhttp.send(sVars);
    }
    catch(z) { return false; }
    return true;
  };
  return this;
}