function ajaxRequest(){
 var activexmodes=["Msxml2.XMLHTTP", "Microsoft.XMLHTTP"]; //activeX versions to check for in IE
 if (window.ActiveXObject){ //Test for support for ActiveXObject in IE first (as XMLHttpRequest in IE7 is broken)
  for (var i=0; i<activexmodes.length; i++){
   try{
    return new ActiveXObject(activexmodes[i]);
   }
   catch(e){
    //suppress error
   }
  }
 }
 else if (window.XMLHttpRequest) // if Mozilla, Safari etc
  return new XMLHttpRequest();
 else
  return false;
}

/*function sendAjaxPOSTRequest(action, params){
	var mypostrequest=new ajaxRequest();
	mypostrequest.onreadystatechange=function(){
		if (mypostrequest.readyState==4){
			if (mypostrequest.status==200 || window.location.href.indexOf("http")==-1){
				//success; return the response
				return mypostrequest.responseText;
			}
			else{
				//error occured
				return mypostrequest.status;
			}
		}
	}
	mypostrequest.open("POST", action, true)
	mypostrequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded")
	mypostrequest.send(params);
}*/