function linkVisitedExtra(linkId, url, sid, refId, userId, visitId) {
	var headElement = document.getElementsByTagName("head").item(0);
	// google conversion tracking for "off-clicks"
	var pixelUrl = "http://www.googleadservices.com/pagead/conversion/1036872167/?label=9BwTCJXajwEQ59O17gM&guid=ON&script=0";
	var pixelTag = document.createElement("script");
	pixelTag.setAttribute("id", "conversionTracker");
	pixelTag.setAttribute("type", "text/javascript");
	pixelTag.setAttribute("src", pixelUrl);
	headElement.appendChild(pixelTag);
	// msn conversion tracking for "off-clicks"
	var msnPixelUrl = "http://379131.r.msn.com/?type=1&cp=1";
	var msnPixelTag = document.createElement("script");
	msnPixelTag.setAttribute("id", "msnConversionTracker");
	msnPixelTag.setAttribute("type", "text/javascript");
	msnPixelTag.setAttribute("src", msnPixelUrl);
	headElement.appendChild(msnPixelTag);
	
	if(refId == 166){
		// docclix conversion tracking for "off-clicks"
		var docclixPixelUrl = "http://track.doclix.com/TrackConv?adv_id=519&cmp_id=715";
		var docclixPixelTag = document.createElement("script");
		docclixPixelTag.setAttribute("id", "docclixConversionTracker");
		docclixPixelTag.setAttribute("type", "text/javascript");
		docclixPixelTag.setAttribute("src", docclixPixelUrl);
		headElement.appendChild(docclixPixelTag);
	}
	if(refId == 186){
		// sb conversion tracking for "off-clicks"
		var sbPixelUrl = "http://track.brighteroption.com/b?p=sx2uys&l=0";
		var sbPixelTag = document.createElement("script");
		sbPixelTag.setAttribute("id", "sbConversionTracker");
		sbPixelTag.setAttribute("type", "text/javascript");
		sbPixelTag.setAttribute("src", sbPixelUrl);
		headElement.appendChild(sbPixelTag);
	}
	if(refId == 187){
		// tradedoubler tracking for "off-clicks"
		var tduid = "";
		var tdorganization=1608211;
		var tdevent=232923;
		var tdleadNumber = Math.round((new Date().getTime() * Math.random()));
		var tdreportInfo = "";
		var tdsecure = false;
		var tdprotocol = "http";
		if (tdsecure==true) {
			tdprotocol ="https";
		}
		tdreportInfo = escape(tdreportInfo);
		var tdPixelHtml = "<img src=\""+tdprotocol+"://tbl.tradedoubler.com/report?organization="+tdorganization+"&amp;event="+tdevent+"&amp;leadNumber="+tdleadNumber+"&amp;orderValue=1&amp;tduid="+tduid+"&amp;reportInfo="+tdreportInfo+"\" height=\"1\" width=\"1\" border=\"0\">";
		document.getElementById("tracking-pixel-container").innerHTML = tdPixelHtml;
	}
	if(refId == 188){
		//tracking for facebook / mangostorm
		var mangoPixelURL = '<img height="1" width="1" src="https://ssltracking.esearchvision.com/esi/once.gif?esvid=A40047&event=offpage&count=1&brand=xxx" />';
		document.getElementById("tracking-pixel-container").innerHTML = mangoPixelURL;
			
	}
	
}