<!-- AJAX Functions -->

var isWorking = false;

function updateContentArea(divName, varsPassed, url) {
  
	function handleHttpResponse() {
	  if (http.readyState == 4) {
		if (http.responseText.indexOf('invalid') == -1) {
	    	if(divName.length>0){
		        document.getElementById(divName).innerHTML =  http.responseText; 
				}
		  isWorking = false;
		}
	  }
	}	
	  
  if (!isWorking && http) {
    http.open("GET", url + "?" + varsPassed, true);
    http.onreadystatechange = handleHttpResponse;

    isWorking = true;
    http.send(null);
  }
}
function getHTTPObject() {
  var xmlhttp;
  /*@cc_on
  @if (@_jscript_version >= 5)
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (E) {
        xmlhttp = false;
      }
    }
  @else
  xmlhttp = false;
  @end @*/
  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    try {
      xmlhttp = new XMLHttpRequest();
    } catch (e) {
      xmlhttp = false;
    }
  }
  return xmlhttp;
}

var http = getHTTPObject(); // We create the HTTP Object