function initiateAjax(){
	var ajax;
	try{
		ajax=new XMLHttpRequest();
	}catch (e){
		try{
			ajax=new ActiveXObject("Msxml2.XMLHTTP");
		}catch (e){
			try{
				ajax=new ActiveXObject("Microsoft.XMLHTTP");
			}catch (e){
				ajax = false;
			}
		}
	}
	return ajax;
}

function runAjax(isSearchEngine, seQuery, locationid, url){
	ajax = initiateAjax();
	//alert("/js/environment.php?ajax&engine="+isSearchEngine+"&query="+seQuery+"&locationid="+locationid+"&url="+url+"");
	//document.getElementById("steven").innerHTML("STEVEN MCCULLAGH");
	var xssAJAX = "http://www.bookingbedandbreakfast.co.uk/js/saveenvironment.php?ajax&engine="+isSearchEngine+"&query="+seQuery+"&locationid="+locationid+"&url="+url;
	//document.getElementById('jsfile2').src = xssAJAX;
	//window.location = xssAJAX;

   ifrm = document.createElement("IFRAME");
   ifrm.setAttribute("src", xssAJAX);
   ifrm.style.width = 1+"px";
   ifrm.style.height = 1+"px";
   document.body.appendChild(ifrm);
}


function getQuery(queryString){
  queryString = queryString.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+queryString+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( document.referrer);
  if(results == null)
	return "";
  else
	return results[1];
}

function runReferrerDetect(){
	var isGoogle 	= document.referrer.indexOf("http://www.google");
	var isYahoo 	= document.referrer.indexOf("http://www.yahoo");
	var isMSN 		= document.referrer.indexOf("http://search.msn");
	var isAsk 		= document.referrer.indexOf("http://uk.ask.com");
	var isLycos 	= document.referrer.indexOf("http://search.lycos");
	var isExcite 	= document.referrer.indexOf("http://www.excite");
	
	var locationid 	= 793;
	var url 		= location.href;
	
	if (isGoogle >= 0){
		var queries 		= new Array;
		var searchEngine 	= "Google";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (isYahoo >= 0){
		var queries 		= new Array;
		var searchEngine 	= "Yahoo";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (isMSN >= 0){
		var queries 		= new Array;
		var searchEngine 	= "MSN Live Search";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (isAsk >= 0){
		var queries 		= new Array;
		var searchEngine 	= "Ask";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (isLycos >= 0){
		var queries 		= new Array;
		var searchEngine 	= "Lycos";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (isExcite >= 0){
		var queries 		= new Array;
		var searchEngine 	= "Excite";
		runAjax(searchEngine, getQuery("q"), locationid, url);
	}else if (document.referrer&&document.referrer!=""){
		runAjax(false, getQuery("q"), locationid, url);
	}else{
		//Direct hit or no history information available
	}
}

if (document.referrer.indexOf(document.domain) == -1) runReferrerDetect();	//Dont check internal links